Industrial Valves: Selection, Operation & Maintenance
Develop a practical understanding of how industrial valves support safe, efficient, and reliable systems. This course encourages better technical decisions, dependable operation, improved performance, and effective maintenance.
What you'll learn
- Explain the purpose, functions, terminology, service categories, and performance requirements of industrial valves.
- Identify valve components, materials, ratings, end connections, markings, standards, and datasheet requirements.
- Understand valve flow behavior, including pressure drop, capacity, leakage, cavitation, flashing, water hammer, torque, and thrust.
- Compare major valve types by construction, working principle, applications, advantages, limitations, and common problems.
- Select suitable valves for isolation, throttling, control, check, pressure protection, regulating, sanitary, and utility services.
- Match valve selection with fluid type, pressure, temperature, corrosion, erosion, solids, leakage, materials, and maintenance needs.
- Understand manual, pneumatic, electric, hydraulic, solenoid, emergency shutdown, positioner, and feedback device applications.
- Apply proper valve handling, storage, installation, commissioning, startup checks, safe operation, isolation, and bleeding practices.
- Inspect, test, maintain, repair, troubleshoot, and document valves used in industrial systems.
- Compare real industrial valve applications by duty, service limits, reliability, cost, maintenance, and selection requirements.
Requirements
Participants should have a basic understanding of industrial plant, mechanical, piping, operations, or maintenance context, proficiency in English, and a strong interest in industrial valves, their selection, operation, inspection, maintenance, and troubleshooting. Prior field or technical experience is helpful but not essential, as this course is designed to build practical understanding from the fundamentals through real industrial applications.
Who this course is for
Students, Fresh Graduates & Early-Career Learners
For learners who want a strong practical foundation in industrial valves, including terminology, functions, components, valve types, flow behavior, materials, standards, and real plant applications.
Plant Operations, Facilities & Utility Teams
For operators, facility teams, and utility personnel who work with valves in water, wastewater, HVAC, steam, power, chemical, oil and gas, food, and pharmaceutical services.
Control, Automation & Safety Roles
For professionals working with control valves, actuators, solenoid valves, emergency shutdown valves, positioners, feedback devices, pressure protection, and automated valve systems.
Engineering & Technical Professionals
For engineers and technical staff involved in valve selection, specification, datasheets, materials, pressure-temperature ratings, end connections, standards, and service suitability across industrial systems.
Maintenance, Inspection & Reliability Teams
For maintenance technicians, inspectors, supervisors, and reliability teams responsible for valve inspection, testing, preventive maintenance, repair decisions, troubleshooting, and maintenance records.
Project, Procurement & Technical Roles
For professionals involved in valve comparison, technical specifications, datasheets, standards, testing requirements, certificates, inspection documents, spare parts, and selection decisions.
Industrial Valves: Selection, Operation & Maintenance
Course Description
Industrial Valves: Selection, Operation & Maintenance is a professional course designed for learners and technical teams who want to build a strong, reliable understanding of valves used in industrial systems. Valves play a critical role in isolation, flow regulation, pressure protection, process control, safety, reliability, maintenance, and overall plant performance. In real operations, correct valve understanding helps reduce failures, prevent unsafe conditions, improve system availability, and support better engineering and maintenance decisions.
In today’s organizations, valves are not just pipeline accessories. They are essential assets that affect production continuity, equipment protection, environmental containment, energy use, operating cost, and risk control. Poor valve selection, incorrect installation, weak maintenance practices, or ineffective troubleshooting can result in leakage, pressure loss, cavitation, water hammer, downtime, product contamination, and costly repairs. This course helps professionals approach valves as practical engineering and operational decisions, not only as mechanical components.
The course builds the capability to understand valve duties, compare valve types, interpret specifications, recognize service limitations, and connect valve choices with real operating conditions such as pressure, temperature, fluid behavior, corrosion, erosion, leakage, solids, safety requirements, and maintenance needs. It also supports more confident decisions in valve operation, inspection, testing, repair, troubleshooting, documentation, and real industrial applications.
For individual professionals, this course strengthens technical judgment, field confidence, and communication with engineering, operations, maintenance, inspection, procurement, and safety teams. For organizations, it supports safer operation, better valve reliability, stronger specification quality, improved maintenance planning, and more consistent troubleshooting decisions. By developing a structured understanding of industrial valves, teams can reduce avoidable failures, improve plant readiness, and make better decisions across projects, operations, and maintenance activities.
Course Outline
Module 1 – Industrial Valve Fundamentals
M1L1 – Role of Valves in Industrial Systems
Learners examine the definition and purpose of industrial valves, their role within piping systems, and the range of industries in which they are used. The discussion also explains why correct valve application matters to industrial safety and system reliability, providing a clear foundation for understanding how valves support fluid handling, process control, equipment protection, and dependable plant operation.
M1L2 – Primary Functions of Valves
The main functions performed by industrial valves are explained through isolation, throttling, flow regulation, reverse-flow prevention, pressure protection, and pressure control. Learners distinguish how these duties differ and why a valve selected for one function may not be suitable for another, creating a practical basis for recognising valve purpose within piping, process, and utility systems.
M1L3 – Valve Service Categories
Valve duties are organised into isolation, throttling, control, check, relief, severe, sanitary, and utility service categories. The material clarifies the purpose of each category and helps learners recognise how service classification guides the way a valve is selected, specified, operated, and maintained for a particular industrial application without confusing different functional requirements.
M1L4 – Essential Valve Terminology
Essential valve terminology is introduced through the body, bonnet, trim, stem, seat, disc, plug, ball, gate, port, and bore. Learners also distinguish upstream from downstream so they can describe valve construction, flow direction, and internal parts accurately. This vocabulary supports clearer interpretation of drawings, datasheets, procedures, inspection findings, and maintenance discussions throughout the course.
M1L5 – Valve Performance Requirements
The performance requirements used to judge industrial valves are examined, including shutoff, leakage, pressure drop, flow capacity, torque, response speed, reliability, and maintainability. Learners consider how these requirements interact and why acceptable performance depends on both the service duty and the valve design, rather than on a single feature such as tight shutoff or low pressure loss.
M1L6 – Practical Valve Selection Mindset
A practical valve selection mindset is developed by matching valve type to duty, fluid, pressure, temperature, safety, cost, maintenance, and reliability needs. The material shows how these factors must be considered together so that selection decisions reflect the actual operating service, required performance, maintenance expectations, and consequences of choosing an unsuitable valve.
Learners examine the definition and purpose of industrial valves, their role within piping systems, and the range of industries in which they are used. The discussion also explains why correct valve application matters to industrial safety and system reliability, providing a clear foundation for understanding how valves support fluid handling, process control, equipment protection, and dependable plant operation.
M1L2 – Primary Functions of Valves
The main functions performed by industrial valves are explained through isolation, throttling, flow regulation, reverse-flow prevention, pressure protection, and pressure control. Learners distinguish how these duties differ and why a valve selected for one function may not be suitable for another, creating a practical basis for recognising valve purpose within piping, process, and utility systems.
M1L3 – Valve Service Categories
Valve duties are organised into isolation, throttling, control, check, relief, severe, sanitary, and utility service categories. The material clarifies the purpose of each category and helps learners recognise how service classification guides the way a valve is selected, specified, operated, and maintained for a particular industrial application without confusing different functional requirements.
M1L4 – Essential Valve Terminology
Essential valve terminology is introduced through the body, bonnet, trim, stem, seat, disc, plug, ball, gate, port, and bore. Learners also distinguish upstream from downstream so they can describe valve construction, flow direction, and internal parts accurately. This vocabulary supports clearer interpretation of drawings, datasheets, procedures, inspection findings, and maintenance discussions throughout the course.
M1L5 – Valve Performance Requirements
The performance requirements used to judge industrial valves are examined, including shutoff, leakage, pressure drop, flow capacity, torque, response speed, reliability, and maintainability. Learners consider how these requirements interact and why acceptable performance depends on both the service duty and the valve design, rather than on a single feature such as tight shutoff or low pressure loss.
M1L6 – Practical Valve Selection Mindset
A practical valve selection mindset is developed by matching valve type to duty, fluid, pressure, temperature, safety, cost, maintenance, and reliability needs. The material shows how these factors must be considered together so that selection decisions reflect the actual operating service, required performance, maintenance expectations, and consequences of choosing an unsuitable valve.
Module 2 – Valve Construction and Components
M2L1 – Valve Body and Pressure Boundary
The valve body is examined as the main pressure-containing boundary and structural part of the valve. Learners review body function, common body shapes, and cast, forged, and fabricated construction. The discussion connects these construction forms with the body’s role in containing pressure, supporting internal parts, and providing a suitable flow path and connection to the piping system.
M2L2 – Valve Bonnet and Cover Designs
Valve bonnet and cover designs are compared through bolted, welded, screwed, and pressure-seal arrangements. Learners examine how each design closes the pressure boundary and provides access to internal parts. The material highlights the relationship between bonnet construction, service conditions, maintenance access, and the practical ability to inspect or repair components inside the valve.
M2L3 – Body-Bonnet Joints and Gaskets
Body-bonnet joints are studied as important sealing locations within the valve pressure boundary. Learners examine joint sealing, gasket materials, possible leakage paths, and the effects of pressure and temperature on joint performance. The discussion helps learners understand why correct gasket selection, joint condition, and assembly are important when controlling external leakage from the body-bonnet connection.
M2L4 – Valve Closure Members
The main valve closure members are introduced through gates, discs, plugs, balls, diaphragms, and sleeves. Learners compare the general closure principle of each component and how its movement opens, restricts, redirects, or stops flow. This component-level view prepares learners to understand the working principles of individual valve types covered later in the course.
M2L5 – Valve Trim Components
Valve trim is explained through its function, materials, cages, guides, plugs, seats, wear surfaces, and replaceable parts. Learners identify which internal components form the working trim and how they guide movement, control flow, create shutoff, and resist wear. The material also clarifies why replaceable trim can be important during inspection, repair, and maintenance planning.
M2L6 – Valve Seats and Sealing Surfaces
Valve seats and sealing surfaces are examined through soft-seat and metal-seat construction, integral and replaceable seats, and their relationship to shutoff performance. Learners compare the principal seating arrangements and recognise how seat type influences leakage expectations, service limitations, inspection needs, and the possibility of replacing worn sealing components during valve maintenance.
M2L7 – Valve Stems and Stem Motion
Stem designs are compared through rising, non-rising, and rotary motion. Learners examine how stem movement operates the closure member and how wear, bending, and misalignment can interfere with smooth travel or correct seating. The discussion provides a clear basis for recognising stem-related operating problems during inspection, functional testing, and troubleshooting.
M2L8 – Stem Packing and Gland Systems
Stem packing and gland systems are explained through packing function, the stuffing box, gland follower, packing leakage, and fugitive emissions. Learners examine how the packing arrangement seals around a moving stem and why adjustment, condition, and correct assembly matter. The material connects visible stem leakage with the components that control external fluid release.
M2L9 – Valve End Connections
Industrial valve end connections are compared, including flanged, threaded, socket-weld, butt-weld, wafer, lug, grooved, clamp, and hygienic connections. Learners identify how these connection types attach valves to piping and where their construction differs. The discussion supports later decisions involving specification, installation, alignment, maintenance access, and service-specific connection requirements.
The valve body is examined as the main pressure-containing boundary and structural part of the valve. Learners review body function, common body shapes, and cast, forged, and fabricated construction. The discussion connects these construction forms with the body’s role in containing pressure, supporting internal parts, and providing a suitable flow path and connection to the piping system.
M2L2 – Valve Bonnet and Cover Designs
Valve bonnet and cover designs are compared through bolted, welded, screwed, and pressure-seal arrangements. Learners examine how each design closes the pressure boundary and provides access to internal parts. The material highlights the relationship between bonnet construction, service conditions, maintenance access, and the practical ability to inspect or repair components inside the valve.
M2L3 – Body-Bonnet Joints and Gaskets
Body-bonnet joints are studied as important sealing locations within the valve pressure boundary. Learners examine joint sealing, gasket materials, possible leakage paths, and the effects of pressure and temperature on joint performance. The discussion helps learners understand why correct gasket selection, joint condition, and assembly are important when controlling external leakage from the body-bonnet connection.
M2L4 – Valve Closure Members
The main valve closure members are introduced through gates, discs, plugs, balls, diaphragms, and sleeves. Learners compare the general closure principle of each component and how its movement opens, restricts, redirects, or stops flow. This component-level view prepares learners to understand the working principles of individual valve types covered later in the course.
M2L5 – Valve Trim Components
Valve trim is explained through its function, materials, cages, guides, plugs, seats, wear surfaces, and replaceable parts. Learners identify which internal components form the working trim and how they guide movement, control flow, create shutoff, and resist wear. The material also clarifies why replaceable trim can be important during inspection, repair, and maintenance planning.
M2L6 – Valve Seats and Sealing Surfaces
Valve seats and sealing surfaces are examined through soft-seat and metal-seat construction, integral and replaceable seats, and their relationship to shutoff performance. Learners compare the principal seating arrangements and recognise how seat type influences leakage expectations, service limitations, inspection needs, and the possibility of replacing worn sealing components during valve maintenance.
M2L7 – Valve Stems and Stem Motion
Stem designs are compared through rising, non-rising, and rotary motion. Learners examine how stem movement operates the closure member and how wear, bending, and misalignment can interfere with smooth travel or correct seating. The discussion provides a clear basis for recognising stem-related operating problems during inspection, functional testing, and troubleshooting.
M2L8 – Stem Packing and Gland Systems
Stem packing and gland systems are explained through packing function, the stuffing box, gland follower, packing leakage, and fugitive emissions. Learners examine how the packing arrangement seals around a moving stem and why adjustment, condition, and correct assembly matter. The material connects visible stem leakage with the components that control external fluid release.
M2L9 – Valve End Connections
Industrial valve end connections are compared, including flanged, threaded, socket-weld, butt-weld, wafer, lug, grooved, clamp, and hygienic connections. Learners identify how these connection types attach valves to piping and where their construction differs. The discussion supports later decisions involving specification, installation, alignment, maintenance access, and service-specific connection requirements.
Module 3 – Valve Materials, Ratings, and Standards
M3L1 – Metallic Valve Materials
Common metallic valve materials are reviewed, including cast iron, ductile iron, carbon steel, stainless steel, bronze, and alloy steels. Learners distinguish the main material groups used for valve construction and relate them to the need for suitable pressure, temperature, corrosion, and service performance. The focus remains on recognising material options rather than performing advanced material design calculations.
M3L2 – Trim, Seat, and Seal Materials
Materials used for valve trim, seats, and seals are examined through soft seats, hard-facing, elastomers, polymers, graphite, and metallic sealing materials. Learners compare where flexible, polymeric, graphite, hard-faced, or metal sealing elements may be specified and how material choice affects sealing, wear resistance, compatibility, and service limits.
M3L3 – Lined and Non-Metallic Valve Construction
Lined and non-metallic valve construction is explored through plastic valves, rubber lining, and PTFE/PFA lining. Learners examine how these materials provide chemical resistance while introducing pressure and temperature limits that must be respected. The discussion helps distinguish a fully non-metallic valve from a lined valve whose pressure boundary and wetted surfaces may use different materials.
M3L4 – Pressure-Temperature Ratings
Pressure-temperature ratings are explained through pressure class, temperature derating, and the requirement to match the valve rating with the piping class. Learners examine why a valve’s allowable pressure can change with temperature and how rating information supports correct specification. The material reinforces that nominal size alone does not establish whether a valve is suitable for service.
M3L5 – Corrosion and Erosion in Valves
Corrosion and erosion in valves are examined through common corrosion types, erosion mechanisms, material loss, seat damage, and prevention methods. Learners distinguish chemical or environmental attack from flow-related material removal and consider how both can affect pressure boundaries, sealing surfaces, and valve performance. The discussion supports recognition of damage and selection of suitable preventive measures.
M3L6 – Valve Markings and Nameplates
Valve markings and nameplates are interpreted through size, pressure class, material, flow direction, trim, seat, tag number, and heat number. Learners identify what each item communicates and how markings support receiving inspection, installation, traceability, specification checks, and maintenance records. The material also highlights the importance of confirming flow direction where the valve design requires it.
M3L7 – Valve Datasheets and Specifications
Valve datasheets and specifications are examined through fields covering the body, trim, seat, rating, end connection, actuator, testing, and certification. Learners understand how these entries define the required valve and provide a common basis for procurement, technical review, inspection, and documentation. Attention is given to reading the complete specification rather than relying only on a valve type or size.
M3L8 – Common Valve Standards and Codes
Common valve standards and codes are introduced through ASME, API, ISO, MSS, ISA, and IEC. Learners examine how these organisations address areas such as pressure ratings, testing, leakage, and control valve requirements. The material helps learners recognise the purpose of standards when interpreting specifications and records, without treating every standard as interchangeable or applicable to every valve.
Common metallic valve materials are reviewed, including cast iron, ductile iron, carbon steel, stainless steel, bronze, and alloy steels. Learners distinguish the main material groups used for valve construction and relate them to the need for suitable pressure, temperature, corrosion, and service performance. The focus remains on recognising material options rather than performing advanced material design calculations.
M3L2 – Trim, Seat, and Seal Materials
Materials used for valve trim, seats, and seals are examined through soft seats, hard-facing, elastomers, polymers, graphite, and metallic sealing materials. Learners compare where flexible, polymeric, graphite, hard-faced, or metal sealing elements may be specified and how material choice affects sealing, wear resistance, compatibility, and service limits.
M3L3 – Lined and Non-Metallic Valve Construction
Lined and non-metallic valve construction is explored through plastic valves, rubber lining, and PTFE/PFA lining. Learners examine how these materials provide chemical resistance while introducing pressure and temperature limits that must be respected. The discussion helps distinguish a fully non-metallic valve from a lined valve whose pressure boundary and wetted surfaces may use different materials.
M3L4 – Pressure-Temperature Ratings
Pressure-temperature ratings are explained through pressure class, temperature derating, and the requirement to match the valve rating with the piping class. Learners examine why a valve’s allowable pressure can change with temperature and how rating information supports correct specification. The material reinforces that nominal size alone does not establish whether a valve is suitable for service.
M3L5 – Corrosion and Erosion in Valves
Corrosion and erosion in valves are examined through common corrosion types, erosion mechanisms, material loss, seat damage, and prevention methods. Learners distinguish chemical or environmental attack from flow-related material removal and consider how both can affect pressure boundaries, sealing surfaces, and valve performance. The discussion supports recognition of damage and selection of suitable preventive measures.
M3L6 – Valve Markings and Nameplates
Valve markings and nameplates are interpreted through size, pressure class, material, flow direction, trim, seat, tag number, and heat number. Learners identify what each item communicates and how markings support receiving inspection, installation, traceability, specification checks, and maintenance records. The material also highlights the importance of confirming flow direction where the valve design requires it.
M3L7 – Valve Datasheets and Specifications
Valve datasheets and specifications are examined through fields covering the body, trim, seat, rating, end connection, actuator, testing, and certification. Learners understand how these entries define the required valve and provide a common basis for procurement, technical review, inspection, and documentation. Attention is given to reading the complete specification rather than relying only on a valve type or size.
M3L8 – Common Valve Standards and Codes
Common valve standards and codes are introduced through ASME, API, ISO, MSS, ISA, and IEC. Learners examine how these organisations address areas such as pressure ratings, testing, leakage, and control valve requirements. The material helps learners recognise the purpose of standards when interpreting specifications and records, without treating every standard as interchangeable or applicable to every valve.
Module 4 – Valve Flow Behavior
M4L1 – Flow Through Valves
Flow through valves is explained by examining the flow path, restrictions, turbulence, and the behaviour of full-bore and reduced-bore designs. Learners consider how the internal passage changes fluid movement and why different geometries produce different levels of disturbance. This provides a foundation for understanding pressure drop, capacity, noise, erosion, and application suitability.
M4L2 – Pressure Drop Across Valves
The reasons valves create pressure loss are examined, with attention to internal geometry and the difference between isolation and throttling pressure drop. Learners understand that the flow path, restriction, and operating position influence energy loss across the valve. The discussion supports more informed comparison of valve types for fully open service and for deliberate flow regulation.
M4L3 – Valve Flow Capacity
Valve flow capacity is introduced through Cv and Kv concepts, manufacturer data, opening percentage, and practical capacity checks. Learners examine how published flow information is used to compare valve performance and how capacity changes as a valve opens. The focus is on interpreting and checking available data rather than carrying out heavy sizing calculations.
M4L4 – Isolation Versus Throttling Behavior
Isolation and throttling behaviour are compared through full-open, full-closed, and partially open positions. Learners examine why a valve suitable for isolation may perform poorly when left partly open and how unsuitable throttling can create damage risks. The material helps distinguish normal on-off operation from controlled restriction of flow.
M4L5 – Valve Leakage and Shutoff Classes
Valve leakage is examined through internal and external leakage, soft-seat and metal-seat leakage, and the meaning of bubble-tight shutoff. Learners distinguish leakage through the closed valve from leakage to the surrounding environment and compare realistic shutoff expectations for different seating arrangements. This supports clearer interpretation of inspection findings, tests, and specified leakage performance.
M4L6 – Cavitation, Flashing, and Choked Flow
Cavitation, flashing, and choked flow are examined through vapour formation, pressure recovery, noise, vibration, erosion, and damage prevention. Learners distinguish these flow conditions and understand how pressure changes through a valve can create damaging effects. The discussion connects observable symptoms with the need to consider valve duty, pressure conditions, and suitable preventive measures.
M4L7 – Water Hammer and Surge
Water hammer and surge are explored through rapid valve closure, sudden flow stoppage, pump trips, and check valve slam. Learners examine how abrupt changes in flow can create damaging pressure events and why closure behaviour matters. The material also introduces surge reduction as a practical consideration when selecting, operating, or controlling valves in affected systems.
M4L8 – Torque, Thrust, and Operating Force
Valve operating force is explained through breakaway torque, running torque, linear thrust, and rotary torque. Learners distinguish the force requirements of linear and rotary valves and examine how these values affect actuator sizing. The discussion clarifies why the force needed to start movement may differ from the force required to continue valve travel.
Flow through valves is explained by examining the flow path, restrictions, turbulence, and the behaviour of full-bore and reduced-bore designs. Learners consider how the internal passage changes fluid movement and why different geometries produce different levels of disturbance. This provides a foundation for understanding pressure drop, capacity, noise, erosion, and application suitability.
M4L2 – Pressure Drop Across Valves
The reasons valves create pressure loss are examined, with attention to internal geometry and the difference between isolation and throttling pressure drop. Learners understand that the flow path, restriction, and operating position influence energy loss across the valve. The discussion supports more informed comparison of valve types for fully open service and for deliberate flow regulation.
M4L3 – Valve Flow Capacity
Valve flow capacity is introduced through Cv and Kv concepts, manufacturer data, opening percentage, and practical capacity checks. Learners examine how published flow information is used to compare valve performance and how capacity changes as a valve opens. The focus is on interpreting and checking available data rather than carrying out heavy sizing calculations.
M4L4 – Isolation Versus Throttling Behavior
Isolation and throttling behaviour are compared through full-open, full-closed, and partially open positions. Learners examine why a valve suitable for isolation may perform poorly when left partly open and how unsuitable throttling can create damage risks. The material helps distinguish normal on-off operation from controlled restriction of flow.
M4L5 – Valve Leakage and Shutoff Classes
Valve leakage is examined through internal and external leakage, soft-seat and metal-seat leakage, and the meaning of bubble-tight shutoff. Learners distinguish leakage through the closed valve from leakage to the surrounding environment and compare realistic shutoff expectations for different seating arrangements. This supports clearer interpretation of inspection findings, tests, and specified leakage performance.
M4L6 – Cavitation, Flashing, and Choked Flow
Cavitation, flashing, and choked flow are examined through vapour formation, pressure recovery, noise, vibration, erosion, and damage prevention. Learners distinguish these flow conditions and understand how pressure changes through a valve can create damaging effects. The discussion connects observable symptoms with the need to consider valve duty, pressure conditions, and suitable preventive measures.
M4L7 – Water Hammer and Surge
Water hammer and surge are explored through rapid valve closure, sudden flow stoppage, pump trips, and check valve slam. Learners examine how abrupt changes in flow can create damaging pressure events and why closure behaviour matters. The material also introduces surge reduction as a practical consideration when selecting, operating, or controlling valves in affected systems.
M4L8 – Torque, Thrust, and Operating Force
Valve operating force is explained through breakaway torque, running torque, linear thrust, and rotary torque. Learners distinguish the force requirements of linear and rotary valves and examine how these values affect actuator sizing. The discussion clarifies why the force needed to start movement may differ from the force required to continue valve travel.
Module 5 – Isolation and On-Off Valve Types
M5L1 – Gate Valves
Gate valves are studied through their construction, working principle, main variants, and industrial applications. Learners examine how the gate moves to provide isolation and compare the design’s advantages with its limitations. The material also identifies common problems that can affect operation, shutoff, or maintenance, supporting practical evaluation of gate valves for on-off service.
M5L2 – Knife Gate Valves
Knife gate valves are explained through their working principle and use in slurry, wastewater, and solids-handling service. Learners examine how the knife-like closure member operates and why the design is considered for fluids containing suspended material. The advantages and limitations are compared so learners can judge where knife gate valves may or may not be suitable.
M5L3 – Ball Valves
Ball valves are examined through quarter-turn operation, floating-ball and trunnion-mounted designs, and full-port and reduced-port arrangements. Learners compare these variants, their applications, and their limitations. The discussion connects ball movement and bore configuration with isolation performance, flow path, operating method, and practical selection for industrial service.
M5L4 – Plug Valves
Plug valves are explored through the rotating plug principle and the differences between lubricated and non-lubricated designs. Learners examine their use in dirty service and identify maintenance issues associated with the design. The material relates plug rotation, sealing arrangement, service conditions, and maintenance needs when considering plug valves for industrial isolation or routing duties.
M5L5 – Butterfly Valves
Butterfly valves are explained through disc rotation and concentric, double-offset, and triple-offset designs. Learners compare these arrangements and examine applications in water, HVAC, utilities, and steam systems. The discussion shows how the basic rotary principle remains common while offset configuration and service requirements influence performance and suitability.
M5L6 – Diaphragm Valves
Diaphragm valves are studied through the flexible diaphragm operating principle and their use in corrosive, sanitary, and clean service. Learners examine how the diaphragm separates or controls the flow path and consider the pressure and temperature limits of the design. The material connects construction with application benefits and service restrictions.
M5L7 – Pinch Valves
Pinch valves are examined through the sleeve-compression principle and their use with slurry, powder, and abrasive service. Learners consider how the flexible sleeve creates a clog-resistant flow path while remaining subject to sleeve wear. The discussion helps relate the simple closure method to solids-handling advantages, maintenance needs, and service limitations.
M5L8 – Multi-Port Valves
Multi-port valves are explored through three-way and four-way flow routing. Learners examine how these valves support mixing, bypassing, and diversion while introducing sealing limitations that must be considered. The material clarifies how port arrangement changes the available flow paths and why the required routing duty must be defined before selection.
M5L9 – Diverter Valves
Diverter valves are explained through their flow-diversion principle and use in process routing, material transfer, blending, and bypass applications. Learners examine how the valve directs a stream between different paths and how the required routing arrangement affects application. The focus remains on understanding the function and suitable use of diverter valves within industrial systems.
M5L10 – Double Block and Bleed Valves
Double block and bleed valves are examined through dual isolation, the bleed function, and the concept of verified isolation. Learners review their use in hazardous service and custody transfer applications. The discussion connects the two blocking elements and intermediate bleed point with the need to confirm isolation and manage trapped or leaking fluid.
Gate valves are studied through their construction, working principle, main variants, and industrial applications. Learners examine how the gate moves to provide isolation and compare the design’s advantages with its limitations. The material also identifies common problems that can affect operation, shutoff, or maintenance, supporting practical evaluation of gate valves for on-off service.
M5L2 – Knife Gate Valves
Knife gate valves are explained through their working principle and use in slurry, wastewater, and solids-handling service. Learners examine how the knife-like closure member operates and why the design is considered for fluids containing suspended material. The advantages and limitations are compared so learners can judge where knife gate valves may or may not be suitable.
M5L3 – Ball Valves
Ball valves are examined through quarter-turn operation, floating-ball and trunnion-mounted designs, and full-port and reduced-port arrangements. Learners compare these variants, their applications, and their limitations. The discussion connects ball movement and bore configuration with isolation performance, flow path, operating method, and practical selection for industrial service.
M5L4 – Plug Valves
Plug valves are explored through the rotating plug principle and the differences between lubricated and non-lubricated designs. Learners examine their use in dirty service and identify maintenance issues associated with the design. The material relates plug rotation, sealing arrangement, service conditions, and maintenance needs when considering plug valves for industrial isolation or routing duties.
M5L5 – Butterfly Valves
Butterfly valves are explained through disc rotation and concentric, double-offset, and triple-offset designs. Learners compare these arrangements and examine applications in water, HVAC, utilities, and steam systems. The discussion shows how the basic rotary principle remains common while offset configuration and service requirements influence performance and suitability.
M5L6 – Diaphragm Valves
Diaphragm valves are studied through the flexible diaphragm operating principle and their use in corrosive, sanitary, and clean service. Learners examine how the diaphragm separates or controls the flow path and consider the pressure and temperature limits of the design. The material connects construction with application benefits and service restrictions.
M5L7 – Pinch Valves
Pinch valves are examined through the sleeve-compression principle and their use with slurry, powder, and abrasive service. Learners consider how the flexible sleeve creates a clog-resistant flow path while remaining subject to sleeve wear. The discussion helps relate the simple closure method to solids-handling advantages, maintenance needs, and service limitations.
M5L8 – Multi-Port Valves
Multi-port valves are explored through three-way and four-way flow routing. Learners examine how these valves support mixing, bypassing, and diversion while introducing sealing limitations that must be considered. The material clarifies how port arrangement changes the available flow paths and why the required routing duty must be defined before selection.
M5L9 – Diverter Valves
Diverter valves are explained through their flow-diversion principle and use in process routing, material transfer, blending, and bypass applications. Learners examine how the valve directs a stream between different paths and how the required routing arrangement affects application. The focus remains on understanding the function and suitable use of diverter valves within industrial systems.
M5L10 – Double Block and Bleed Valves
Double block and bleed valves are examined through dual isolation, the bleed function, and the concept of verified isolation. Learners review their use in hazardous service and custody transfer applications. The discussion connects the two blocking elements and intermediate bleed point with the need to confirm isolation and manage trapped or leaking fluid.
Module 6 – Manual Flow Regulation Valve Types
M6L1 – Globe Valves
Globe valves are studied through linear plug movement, throttling service, and T-pattern and Y-pattern bodies. Learners examine why the design is widely associated with manual flow regulation and compare its advantages with pressure-drop limitations. The material links the internal flow path and plug-seat movement to control capability and service selection.
M6L2 – Angle Valves
Angle valves are examined through their right-angle flow path and applications in steam, condensate, drain, and blowdown service. Learners consider how combining a valve function with a change in flow direction can suit certain piping arrangements. The discussion also addresses erosion risks that may arise in demanding flow conditions.
M6L3 – Needle Valves
Needle valves are explained through fine stem adjustment, instrumentation service, small-flow control, and precision regulation. Learners examine how gradual movement of the needle provides careful restriction of flow and why the design is used for limited flow duties. The material also considers the limitations that prevent needle valves from being suitable for every service.
M6L4 – Flow Control Valves
Flow control valves are examined through restriction-based flow adjustment in hydraulic and utility systems. Learners consider how the achieved flow can depend on pressure conditions and why small passages may create a clogging risk. The discussion links the regulating principle with practical system behaviour, application suitability, and maintenance concerns.
M6L5 – Balancing Valves
Balancing valves are explored through hydraulic balancing in HVAC circuits, including chilled-water and hot-water systems. Learners examine their role during commissioning and how adjustment is used to achieve the intended circuit balance. The material also identifies limitations in adjustment and reinforces the need to relate valve setting to the complete system.
M6L6 – Float Valves
Float valves are explained through level-controlled mechanical operation in tanks, reservoirs, and cooling systems. Learners examine how the float position produces valve movement as liquid level changes. The discussion also considers wear and precision limitations, helping learners understand where a simple mechanical level-control arrangement is useful and where its performance may be restricted.
Globe valves are studied through linear plug movement, throttling service, and T-pattern and Y-pattern bodies. Learners examine why the design is widely associated with manual flow regulation and compare its advantages with pressure-drop limitations. The material links the internal flow path and plug-seat movement to control capability and service selection.
M6L2 – Angle Valves
Angle valves are examined through their right-angle flow path and applications in steam, condensate, drain, and blowdown service. Learners consider how combining a valve function with a change in flow direction can suit certain piping arrangements. The discussion also addresses erosion risks that may arise in demanding flow conditions.
M6L3 – Needle Valves
Needle valves are explained through fine stem adjustment, instrumentation service, small-flow control, and precision regulation. Learners examine how gradual movement of the needle provides careful restriction of flow and why the design is used for limited flow duties. The material also considers the limitations that prevent needle valves from being suitable for every service.
M6L4 – Flow Control Valves
Flow control valves are examined through restriction-based flow adjustment in hydraulic and utility systems. Learners consider how the achieved flow can depend on pressure conditions and why small passages may create a clogging risk. The discussion links the regulating principle with practical system behaviour, application suitability, and maintenance concerns.
M6L5 – Balancing Valves
Balancing valves are explored through hydraulic balancing in HVAC circuits, including chilled-water and hot-water systems. Learners examine their role during commissioning and how adjustment is used to achieve the intended circuit balance. The material also identifies limitations in adjustment and reinforces the need to relate valve setting to the complete system.
M6L6 – Float Valves
Float valves are explained through level-controlled mechanical operation in tanks, reservoirs, and cooling systems. Learners examine how the float position produces valve movement as liquid level changes. The discussion also considers wear and precision limitations, helping learners understand where a simple mechanical level-control arrangement is useful and where its performance may be restricted.
Module 7 – Control Valve Types
M7L1 – Control Valve Fundamentals
Control valve fundamentals are introduced through the valve’s role as a final control element within a control loop. Learners examine the functions of the actuator, positioner, signal, and fail action and how these elements work together to move the valve. The material establishes the basic relationships needed to understand individual control valve types and accessories.
M7L2 – Globe Control Valves
Globe control valves are studied through the globe-style body, plug-and-seat throttling, accurate control, trim options, and pressure drop. Learners examine how linear movement and selectable trim support controlled flow while the internal path creates resistance. The discussion provides a basis for comparing control performance with hydraulic and service limitations.
M7L3 – V-Port Ball Control Valves
V-port ball control valves are explained through the characterised ball opening, rotary control, high capacity, and use in moderate control service. Learners examine how the shaped opening changes the relationship between valve position and flow. The design’s limitations are also considered so that high capacity is not mistaken for suitability in every control application.
M7L4 – Segmented Ball Control Valves
Segmented ball control valves are examined through the segmented-ball design, dirty service, fibrous fluids, high-capacity throttling, and wear considerations. Learners relate the rotary closure geometry to demanding fluid conditions and compare the design’s flow-handling benefits with the need to account for wear during selection and maintenance.
M7L5 – Eccentric Plug Control Valves
Eccentric plug control valves are explored through the eccentric rotary plug, use in dirty and viscous service, moderate control capability, shutoff, and torque behaviour. Learners examine how the offset motion influences opening and closing and how service conditions affect control performance, sealing, and actuator force requirements.
M7L6 – Butterfly Control Valves
Butterfly control valves are studied through rotary disc control, large-flow service, compact construction, moderate control accuracy, and cavitation limits. Learners examine why the design may suit high-capacity applications while providing less precise control in some duties. The discussion connects disc position, flow regulation, compact size, and service restrictions.
M7L7 – Choke Valves
Choke valves are explained through high-pressure flow restriction in oil and gas production and wellhead service. Learners examine the demanding duty performed by the valve and the erosion and noise issues that can result. The material connects severe pressure reduction with the need to consider valve condition, operating behaviour, and service suitability.
M7L8 – Control Valve Trim and Flow Characteristics
Control valve trim and flow characteristics are compared through linear, equal-percentage, and quick-opening behaviour. Learners also examine anti-cavitation, noise-control, and erosion-resistant trim. The discussion shows how characteristic and trim selection influence the way a control valve responds to position and how it manages difficult pressure, noise, or wear conditions.
Control valve fundamentals are introduced through the valve’s role as a final control element within a control loop. Learners examine the functions of the actuator, positioner, signal, and fail action and how these elements work together to move the valve. The material establishes the basic relationships needed to understand individual control valve types and accessories.
M7L2 – Globe Control Valves
Globe control valves are studied through the globe-style body, plug-and-seat throttling, accurate control, trim options, and pressure drop. Learners examine how linear movement and selectable trim support controlled flow while the internal path creates resistance. The discussion provides a basis for comparing control performance with hydraulic and service limitations.
M7L3 – V-Port Ball Control Valves
V-port ball control valves are explained through the characterised ball opening, rotary control, high capacity, and use in moderate control service. Learners examine how the shaped opening changes the relationship between valve position and flow. The design’s limitations are also considered so that high capacity is not mistaken for suitability in every control application.
M7L4 – Segmented Ball Control Valves
Segmented ball control valves are examined through the segmented-ball design, dirty service, fibrous fluids, high-capacity throttling, and wear considerations. Learners relate the rotary closure geometry to demanding fluid conditions and compare the design’s flow-handling benefits with the need to account for wear during selection and maintenance.
M7L5 – Eccentric Plug Control Valves
Eccentric plug control valves are explored through the eccentric rotary plug, use in dirty and viscous service, moderate control capability, shutoff, and torque behaviour. Learners examine how the offset motion influences opening and closing and how service conditions affect control performance, sealing, and actuator force requirements.
M7L6 – Butterfly Control Valves
Butterfly control valves are studied through rotary disc control, large-flow service, compact construction, moderate control accuracy, and cavitation limits. Learners examine why the design may suit high-capacity applications while providing less precise control in some duties. The discussion connects disc position, flow regulation, compact size, and service restrictions.
M7L7 – Choke Valves
Choke valves are explained through high-pressure flow restriction in oil and gas production and wellhead service. Learners examine the demanding duty performed by the valve and the erosion and noise issues that can result. The material connects severe pressure reduction with the need to consider valve condition, operating behaviour, and service suitability.
M7L8 – Control Valve Trim and Flow Characteristics
Control valve trim and flow characteristics are compared through linear, equal-percentage, and quick-opening behaviour. Learners also examine anti-cavitation, noise-control, and erosion-resistant trim. The discussion shows how characteristic and trim selection influence the way a control valve responds to position and how it manages difficult pressure, noise, or wear conditions.
Module 8 – Check Valve Types and Backflow Prevention
M8L1 – Check Valve Fundamentals
Check valve fundamentals are introduced through the purpose of non-return valves, cracking pressure, reverse-flow closure, orientation, and slam risk. Learners examine how flow opens the valve and how reverse flow initiates closing. The material establishes the key concepts needed to compare check valve types, installation requirements, and closure behaviour.
M8L2 – Swing Check Valves
Swing check valves are studied through hinged-disc movement, use in water and oil lines, low pressure drop, and slam limitations. Learners examine how forward flow lifts the disc and how reversal causes closure. The discussion balances the advantage of a relatively open flow path with the risk of forceful or delayed closing.
M8L3 – Lift Check Valves
Lift check valves are explained through disc-lifting action, high-pressure service, small-bore lines, and sensitivity to orientation. Learners examine how the guided closure member moves with flow and why correct installation position matters. The material relates the compact checking action to suitable service conditions and practical installation limitations.
M8L4 – Piston Check Valves
Piston check valves are examined through guided-piston closure and their use in steam, gas, and high-pressure service. Learners consider why the design generally prefers clean fluid and how guidance supports controlled movement of the closure member. The discussion connects service cleanliness, pressure duty, and internal motion with reliable check-valve operation.
M8L5 – Ball Check Valves
Ball check valves are explored through free-ball movement in wastewater, slurry, and pump-discharge service. Learners examine how the moving ball provides backflow prevention and why the design can offer clog resistance. Pressure limits are also considered so that suitability for solids-containing service is assessed together with the valve’s operating restrictions.
M8L6 – Dual Plate Check Valves
Dual plate check valves are studied through spring-loaded twin plates, compact piping installation, pump-discharge use, faster closure, and spring wear. Learners examine how the two plates move and how spring assistance changes closing behaviour. The material compares compactness and reduced slam potential with the maintenance implications of spring condition.
M8L7 – Tilting Disc Check Valves
Tilting disc check valves are explained through pivoted-disc movement, use in large water and process lines, reduced slam, and installation sensitivity. Learners examine how the disc pivots around its mounting and why correct installation affects performance. The discussion connects large-line application and closure behaviour with practical positioning requirements.
M8L8 – Nozzle Check Valves
Nozzle check valves are examined through their axial-flow, non-slam design and applications with compressors, pumps, and other rotating equipment. Learners consider how rapid axial closure supports surge reduction. The material relates the internal flow path and closing action to protection of systems where reverse flow and sudden pressure changes are important concerns.
M8L9 – Foot Valves
Foot valves are studied as check valves fitted with an inlet strainer for pump-suction service. Learners examine how they support priming by preventing reverse drainage and how the strainer affects the inlet. The discussion also considers clogging limitations, linking suction protection and retained liquid with inspection and cleanliness needs.
M8L10 – Stop-Check Valves
Stop-check valves are explained through their combined check and isolation function in boiler and steam systems. Learners examine how one valve can permit normal non-return action while also providing manual shutoff. The material also addresses pressure-drop limitations so that the convenience of the combined function is considered alongside flow resistance.
Check valve fundamentals are introduced through the purpose of non-return valves, cracking pressure, reverse-flow closure, orientation, and slam risk. Learners examine how flow opens the valve and how reverse flow initiates closing. The material establishes the key concepts needed to compare check valve types, installation requirements, and closure behaviour.
M8L2 – Swing Check Valves
Swing check valves are studied through hinged-disc movement, use in water and oil lines, low pressure drop, and slam limitations. Learners examine how forward flow lifts the disc and how reversal causes closure. The discussion balances the advantage of a relatively open flow path with the risk of forceful or delayed closing.
M8L3 – Lift Check Valves
Lift check valves are explained through disc-lifting action, high-pressure service, small-bore lines, and sensitivity to orientation. Learners examine how the guided closure member moves with flow and why correct installation position matters. The material relates the compact checking action to suitable service conditions and practical installation limitations.
M8L4 – Piston Check Valves
Piston check valves are examined through guided-piston closure and their use in steam, gas, and high-pressure service. Learners consider why the design generally prefers clean fluid and how guidance supports controlled movement of the closure member. The discussion connects service cleanliness, pressure duty, and internal motion with reliable check-valve operation.
M8L5 – Ball Check Valves
Ball check valves are explored through free-ball movement in wastewater, slurry, and pump-discharge service. Learners examine how the moving ball provides backflow prevention and why the design can offer clog resistance. Pressure limits are also considered so that suitability for solids-containing service is assessed together with the valve’s operating restrictions.
M8L6 – Dual Plate Check Valves
Dual plate check valves are studied through spring-loaded twin plates, compact piping installation, pump-discharge use, faster closure, and spring wear. Learners examine how the two plates move and how spring assistance changes closing behaviour. The material compares compactness and reduced slam potential with the maintenance implications of spring condition.
M8L7 – Tilting Disc Check Valves
Tilting disc check valves are explained through pivoted-disc movement, use in large water and process lines, reduced slam, and installation sensitivity. Learners examine how the disc pivots around its mounting and why correct installation affects performance. The discussion connects large-line application and closure behaviour with practical positioning requirements.
M8L8 – Nozzle Check Valves
Nozzle check valves are examined through their axial-flow, non-slam design and applications with compressors, pumps, and other rotating equipment. Learners consider how rapid axial closure supports surge reduction. The material relates the internal flow path and closing action to protection of systems where reverse flow and sudden pressure changes are important concerns.
M8L9 – Foot Valves
Foot valves are studied as check valves fitted with an inlet strainer for pump-suction service. Learners examine how they support priming by preventing reverse drainage and how the strainer affects the inlet. The discussion also considers clogging limitations, linking suction protection and retained liquid with inspection and cleanliness needs.
M8L10 – Stop-Check Valves
Stop-check valves are explained through their combined check and isolation function in boiler and steam systems. Learners examine how one valve can permit normal non-return action while also providing manual shutoff. The material also addresses pressure-drop limitations so that the convenience of the combined function is considered alongside flow resistance.
Module 9 – Pressure Protection Valve Types
M9L1 – Safety Valves
Safety valves are studied through pop-action opening in steam, gas, and vapour service, including boiler protection. Learners examine the rapid opening behaviour and the role of testing requirements in confirming performance. The discussion connects valve action, protected service, and verification needs without treating safety valves as interchangeable with all other pressure-relief devices.
M9L2 – Relief Valves
Relief valves are explained through gradual opening in liquid service, pressure relief, and controlled discharge. Learners examine how the opening behaviour differs from pop-action protection and why misapplication can create risk. The material links fluid service and discharge response with the need to select the correct pressure-protection device.
M9L3 – Safety Relief Valves
Safety relief valves are examined through their combined safety and relief behaviour in liquid, gas, vapour, and mixed-service applications. Learners consider how the device may respond across different fluid conditions and why service identification remains important. The discussion provides a clear distinction between combined behaviour and the more specific action of safety or relief valves.
M9L4 – Pilot-Operated Relief Valves
Pilot-operated relief valves are explored through pilot-controlled opening, high-pressure and large-capacity applications, tight shutoff, and design complexity. Learners examine how the pilot influences the main relieving element and compare performance benefits with the additional complexity that affects understanding, testing, and maintenance of the complete assembly.
M9L5 – Rupture Discs
Rupture discs are studied as non-reclosing pressure-relief devices used for corrosive and toxic service where fast relief may be required. Learners examine the one-time opening action and the need for replacement after operation. The material clarifies how a rupture disc differs from a reclosing valve and why service conditions influence its application.
M9L6 – Vacuum Relief Valves
Vacuum relief valves are explained through their role in protecting tanks, vessels, and condensate systems from damaging vacuum conditions. Learners examine how admitting flow can help prevent collapse and why fouling creates an operating risk. The discussion connects vacuum protection with equipment integrity, service cleanliness, and maintenance attention.
M9L7 – Pressure-Vacuum Breather Valves
Pressure-vacuum breather valves are examined through tank breathing during filling and emptying, vapour-loss reduction, fouling, freezing, and maintenance. Learners consider how the valve responds to both pressure and vacuum conditions. The material links normal tank movement with environmental loss control and the practical need to keep the device free to operate.
Safety valves are studied through pop-action opening in steam, gas, and vapour service, including boiler protection. Learners examine the rapid opening behaviour and the role of testing requirements in confirming performance. The discussion connects valve action, protected service, and verification needs without treating safety valves as interchangeable with all other pressure-relief devices.
M9L2 – Relief Valves
Relief valves are explained through gradual opening in liquid service, pressure relief, and controlled discharge. Learners examine how the opening behaviour differs from pop-action protection and why misapplication can create risk. The material links fluid service and discharge response with the need to select the correct pressure-protection device.
M9L3 – Safety Relief Valves
Safety relief valves are examined through their combined safety and relief behaviour in liquid, gas, vapour, and mixed-service applications. Learners consider how the device may respond across different fluid conditions and why service identification remains important. The discussion provides a clear distinction between combined behaviour and the more specific action of safety or relief valves.
M9L4 – Pilot-Operated Relief Valves
Pilot-operated relief valves are explored through pilot-controlled opening, high-pressure and large-capacity applications, tight shutoff, and design complexity. Learners examine how the pilot influences the main relieving element and compare performance benefits with the additional complexity that affects understanding, testing, and maintenance of the complete assembly.
M9L5 – Rupture Discs
Rupture discs are studied as non-reclosing pressure-relief devices used for corrosive and toxic service where fast relief may be required. Learners examine the one-time opening action and the need for replacement after operation. The material clarifies how a rupture disc differs from a reclosing valve and why service conditions influence its application.
M9L6 – Vacuum Relief Valves
Vacuum relief valves are explained through their role in protecting tanks, vessels, and condensate systems from damaging vacuum conditions. Learners examine how admitting flow can help prevent collapse and why fouling creates an operating risk. The discussion connects vacuum protection with equipment integrity, service cleanliness, and maintenance attention.
M9L7 – Pressure-Vacuum Breather Valves
Pressure-vacuum breather valves are examined through tank breathing during filling and emptying, vapour-loss reduction, fouling, freezing, and maintenance. Learners consider how the valve responds to both pressure and vacuum conditions. The material links normal tank movement with environmental loss control and the practical need to keep the device free to operate.
Module 10 – Pressure-Regulating and Self-Acting Valve Types
M10L1 – Pressure Reducing Valves
Pressure reducing valves are studied through downstream pressure control in steam, water, air, and gas systems. Learners compare direct and pilot operation and examine how each arrangement maintains the required downstream condition. The discussion connects the regulating mechanism with utility and process applications where supply pressure must be reduced to a controlled level.
M10L2 – Back Pressure Valves
Back pressure valves are explained through upstream pressure control, pump-discharge use, and pressure-sustaining service. Learners examine how the valve responds to maintain pressure before the valve rather than after it. Instability risks are also considered so that pressure-sustaining duty is evaluated together with operating behaviour.
M10L3 – Pressure Regulators
Pressure regulators are examined through self-operated pressure control in gas and utility systems. Learners consider how local control is achieved without a separate control loop and why accuracy may be limited. The material relates the regulator’s operating principle to simple pressure-control duties and practical performance expectations.
M10L4 – Temperature Regulating Valves
Temperature regulating valves are explored through self-acting temperature control in cooling-water and heating systems. Learners examine how the device responds to temperature conditions and consider limitations in response and accuracy. The discussion links the self-acting mechanism with applications that require local temperature regulation without advanced control arrangements.
M10L5 – Steam Traps
Steam traps are studied through automatic condensate removal while retaining steam. Learners compare mechanical, thermostatic, and thermodynamic types and examine the failure symptoms associated with incorrect operation. The material connects trap function, operating principle, and visible performance problems within steam and condensate systems, helping learners distinguish normal operation from signs of failure.
Pressure reducing valves are studied through downstream pressure control in steam, water, air, and gas systems. Learners compare direct and pilot operation and examine how each arrangement maintains the required downstream condition. The discussion connects the regulating mechanism with utility and process applications where supply pressure must be reduced to a controlled level.
M10L2 – Back Pressure Valves
Back pressure valves are explained through upstream pressure control, pump-discharge use, and pressure-sustaining service. Learners examine how the valve responds to maintain pressure before the valve rather than after it. Instability risks are also considered so that pressure-sustaining duty is evaluated together with operating behaviour.
M10L3 – Pressure Regulators
Pressure regulators are examined through self-operated pressure control in gas and utility systems. Learners consider how local control is achieved without a separate control loop and why accuracy may be limited. The material relates the regulator’s operating principle to simple pressure-control duties and practical performance expectations.
M10L4 – Temperature Regulating Valves
Temperature regulating valves are explored through self-acting temperature control in cooling-water and heating systems. Learners examine how the device responds to temperature conditions and consider limitations in response and accuracy. The discussion links the self-acting mechanism with applications that require local temperature regulation without advanced control arrangements.
M10L5 – Steam Traps
Steam traps are studied through automatic condensate removal while retaining steam. Learners compare mechanical, thermostatic, and thermodynamic types and examine the failure symptoms associated with incorrect operation. The material connects trap function, operating principle, and visible performance problems within steam and condensate systems, helping learners distinguish normal operation from signs of failure.
Module 11 – Actuation, Automation, and Automated Valve Types
M11L1 – Manual Valve Operators
Manual valve operators are examined through handwheels, levers, gearboxes, and chain wheels. Learners consider operating effort, accessibility, and human factors when choosing or using these devices. The discussion connects operator type with valve size, required movement, available access, and the practical ability of personnel to operate the valve safely and effectively.
M11L2 – Pneumatic Actuators
Pneumatic actuators are studied through diaphragm, piston, spring-return, and double-acting arrangements. Learners compare how instrument air powers movement and how spring-return and double-acting designs differ in their operating method. The material also reinforces the importance of instrument-air requirements when evaluating dependable pneumatic valve actuation and matching the arrangement to the intended valve duty.
M11L3 – Electric Actuators
Electric actuators are explained through motor-operated valves, on-off operation, modulating service, remote operation, and electrical limitations. Learners examine how electrical power produces valve movement and how the same actuator type may serve different control duties. The discussion relates remote capability and operating mode to the restrictions of the electrical arrangement.
M11L4 – Hydraulic Actuators
Hydraulic actuators are examined through high-torque operation for large valves and emergency shutdown systems. Learners review the role of hydraulic power units and consider leakage risks associated with the system. The material connects hydraulic force, valve size, safety duty, supporting equipment, and maintenance concerns within automated valve applications.
M11L5 – Solenoid Valves
Solenoid valves are studied through electromagnetic operation, direct-acting and pilot-operated designs, instrument-air applications, and small fluid lines. Learners examine how energising the coil changes valve position and why coil failure is an important operating concern. The discussion distinguishes the two operating arrangements and their typical service context.
M11L6 – Emergency Shutdown Valves
Emergency shutdown valves are explained through fast isolation during hazardous conditions, particularly in oil and gas service and safety systems. Learners examine the importance of testing and reliability when a valve must perform a protective function on demand. The material connects rapid action, hazardous duty, verification, and dependable operation.
M11L7 – Positioners and Feedback Devices
Positioners and feedback devices are examined through valve positioners, limit switches, position transmitters, air filter regulators, and boosters. Learners review how these accessories support commanded movement, position confirmation, and pneumatic performance. Calibration issues are also considered because incorrect adjustment can affect the relationship between the control signal and actual valve position.
Manual valve operators are examined through handwheels, levers, gearboxes, and chain wheels. Learners consider operating effort, accessibility, and human factors when choosing or using these devices. The discussion connects operator type with valve size, required movement, available access, and the practical ability of personnel to operate the valve safely and effectively.
M11L2 – Pneumatic Actuators
Pneumatic actuators are studied through diaphragm, piston, spring-return, and double-acting arrangements. Learners compare how instrument air powers movement and how spring-return and double-acting designs differ in their operating method. The material also reinforces the importance of instrument-air requirements when evaluating dependable pneumatic valve actuation and matching the arrangement to the intended valve duty.
M11L3 – Electric Actuators
Electric actuators are explained through motor-operated valves, on-off operation, modulating service, remote operation, and electrical limitations. Learners examine how electrical power produces valve movement and how the same actuator type may serve different control duties. The discussion relates remote capability and operating mode to the restrictions of the electrical arrangement.
M11L4 – Hydraulic Actuators
Hydraulic actuators are examined through high-torque operation for large valves and emergency shutdown systems. Learners review the role of hydraulic power units and consider leakage risks associated with the system. The material connects hydraulic force, valve size, safety duty, supporting equipment, and maintenance concerns within automated valve applications.
M11L5 – Solenoid Valves
Solenoid valves are studied through electromagnetic operation, direct-acting and pilot-operated designs, instrument-air applications, and small fluid lines. Learners examine how energising the coil changes valve position and why coil failure is an important operating concern. The discussion distinguishes the two operating arrangements and their typical service context.
M11L6 – Emergency Shutdown Valves
Emergency shutdown valves are explained through fast isolation during hazardous conditions, particularly in oil and gas service and safety systems. Learners examine the importance of testing and reliability when a valve must perform a protective function on demand. The material connects rapid action, hazardous duty, verification, and dependable operation.
M11L7 – Positioners and Feedback Devices
Positioners and feedback devices are examined through valve positioners, limit switches, position transmitters, air filter regulators, and boosters. Learners review how these accessories support commanded movement, position confirmation, and pneumatic performance. Calibration issues are also considered because incorrect adjustment can affect the relationship between the control signal and actual valve position.
Module 12 – Specialty and Service-Specific Valve Types
M12L1 – Air Release Valves
Air release valves are studied through automatic air removal from water pipelines and pump systems. Learners examine how releasing accumulated air helps prevent air locking and why leakage can become an operating issue. The discussion connects the specialised function with pipeline performance, valve condition, and the need for suitable maintenance.
M12L2 – Air Vacuum Valves
Air vacuum valves are explained through air admission during draining or vacuum conditions in long pipelines. Learners examine how allowing air into the system helps prevent pipe collapse. The material clarifies the difference between admitting air for vacuum protection and releasing accumulated air during normal operation.
M12L3 – Combination Air Valves
Combination air valves are examined through their combined air-release and vacuum-protection functions in water-transmission systems. Learners consider how one assembly manages both operating conditions and why sizing and maintenance matter. The discussion links the two functions with pipeline filling, operation, draining, and dependable valve performance.
M12L4 – Sampling Valves
Sampling valves are studied through controlled sample withdrawal in chemical and pharmaceutical systems. Learners examine how the valve supports representative removal of process material while introducing contamination and sealing concerns. The material connects sample access, controlled operation, cleanliness, and containment requirements within sensitive industrial applications.
M12L5 – Drain Valves
Drain valves are explained through low-point liquid removal during maintenance, shutdown, and commissioning. Learners examine how placement affects the ability to empty retained fluid and why blockage can prevent effective drainage. The discussion connects valve location, accessibility, cleanliness, blockage risk, and the intended draining purpose during different operating stages.
M12L6 – Vent Valves
Vent valves are examined through high-point gas removal during startup, filling, and maintenance. Learners consider how trapped air or vapour can be released from the system and why valve position is important. The material distinguishes venting from low-point draining and links the function with safe and effective system preparation.
M12L7 – Blowdown Valves
Blowdown valves are studied through rapid discharge, boiler blowdown, and sludge removal. Learners examine the demanding effects of erosion, noise, and high-temperature hazards associated with the duty. The discussion connects the required discharge function with operating precautions, valve condition, service limitations, and the need to recognise the hazards created during blowdown.
M12L8 – Sanitary Diaphragm Valves
Sanitary diaphragm valves are explained through hygienic diaphragm construction in food and pharmaceutical service. Learners examine how cleanability and contamination control influence the design and application of the valve. The material connects the flexible diaphragm principle with hygienic service requirements and the need to maintain clean product-contact areas.
M12L9 – Cryogenic Valves
Cryogenic valves are examined through low-temperature service involving LNG, oxygen, and nitrogen. Learners review the purpose of an extended bonnet and the importance of material toughness under cryogenic conditions. The discussion links specialised construction and material behaviour with the demands of very low-temperature valve operation.
M12L10 – Lined Plug Valves
Lined plug valves are studied through corrosive chemical service, lining protection, and use with acids. Learners examine permeation, lining damage, and temperature limits that can restrict performance. The material connects the rotating plug design with the protective lining and the need to preserve lining integrity.
M12L11 – Lined Ball Valves
Lined ball valves are explained through corrosive isolation service in chemical plants, including PTFE/PFA lining. Learners examine shutoff behaviour and the limitations of the lining. The discussion relates the ball-valve operating principle to chemical resistance while recognising that lining condition and service limits remain important.
Air release valves are studied through automatic air removal from water pipelines and pump systems. Learners examine how releasing accumulated air helps prevent air locking and why leakage can become an operating issue. The discussion connects the specialised function with pipeline performance, valve condition, and the need for suitable maintenance.
M12L2 – Air Vacuum Valves
Air vacuum valves are explained through air admission during draining or vacuum conditions in long pipelines. Learners examine how allowing air into the system helps prevent pipe collapse. The material clarifies the difference between admitting air for vacuum protection and releasing accumulated air during normal operation.
M12L3 – Combination Air Valves
Combination air valves are examined through their combined air-release and vacuum-protection functions in water-transmission systems. Learners consider how one assembly manages both operating conditions and why sizing and maintenance matter. The discussion links the two functions with pipeline filling, operation, draining, and dependable valve performance.
M12L4 – Sampling Valves
Sampling valves are studied through controlled sample withdrawal in chemical and pharmaceutical systems. Learners examine how the valve supports representative removal of process material while introducing contamination and sealing concerns. The material connects sample access, controlled operation, cleanliness, and containment requirements within sensitive industrial applications.
M12L5 – Drain Valves
Drain valves are explained through low-point liquid removal during maintenance, shutdown, and commissioning. Learners examine how placement affects the ability to empty retained fluid and why blockage can prevent effective drainage. The discussion connects valve location, accessibility, cleanliness, blockage risk, and the intended draining purpose during different operating stages.
M12L6 – Vent Valves
Vent valves are examined through high-point gas removal during startup, filling, and maintenance. Learners consider how trapped air or vapour can be released from the system and why valve position is important. The material distinguishes venting from low-point draining and links the function with safe and effective system preparation.
M12L7 – Blowdown Valves
Blowdown valves are studied through rapid discharge, boiler blowdown, and sludge removal. Learners examine the demanding effects of erosion, noise, and high-temperature hazards associated with the duty. The discussion connects the required discharge function with operating precautions, valve condition, service limitations, and the need to recognise the hazards created during blowdown.
M12L8 – Sanitary Diaphragm Valves
Sanitary diaphragm valves are explained through hygienic diaphragm construction in food and pharmaceutical service. Learners examine how cleanability and contamination control influence the design and application of the valve. The material connects the flexible diaphragm principle with hygienic service requirements and the need to maintain clean product-contact areas.
M12L9 – Cryogenic Valves
Cryogenic valves are examined through low-temperature service involving LNG, oxygen, and nitrogen. Learners review the purpose of an extended bonnet and the importance of material toughness under cryogenic conditions. The discussion links specialised construction and material behaviour with the demands of very low-temperature valve operation.
M12L10 – Lined Plug Valves
Lined plug valves are studied through corrosive chemical service, lining protection, and use with acids. Learners examine permeation, lining damage, and temperature limits that can restrict performance. The material connects the rotating plug design with the protective lining and the need to preserve lining integrity.
M12L11 – Lined Ball Valves
Lined ball valves are explained through corrosive isolation service in chemical plants, including PTFE/PFA lining. Learners examine shutoff behaviour and the limitations of the lining. The discussion relates the ball-valve operating principle to chemical resistance while recognising that lining condition and service limits remain important.
Module 13 – Valve Selection and Engineering Specification
M13L1 – Valve Selection Workflow
The valve selection workflow begins by defining service duty, fluid, pressure, temperature, flow, safety, maintenance, and operating needs. Learners examine how these factors form the basis of a structured decision rather than selecting by valve type alone. The material organises the required information so suitable options can be compared against the actual service.
M13L2 – Selecting Valves for Isolation Service
Selecting valves for isolation service is examined through shutoff tightness, pressure drop, operating frequency, and the difference between clean and dirty service. Learners consider how each factor changes the suitability of available valve types. The discussion supports selection of an isolation valve that can close as required without ignoring flow resistance or service conditions.
M13L3 – Selecting Valves for Throttling Service
Throttling-valve selection is explored through control range, pressure drop, cavitation risk, erosion risk, and suitable regulation options. Learners examine why not every isolation valve should be used for partial opening and how demanding pressure conditions affect the choice. The material provides a practical basis for comparing valves intended for controlled restriction of flow.
M13L4 – Selecting Valves for Check Service
Check-valve selection is examined through reverse-flow risk, pump protection, water hammer, orientation, and closure behaviour. Learners consider how the expected direction change and installation arrangement influence valve choice. The discussion connects protection needs with closing speed and operating behaviour so backflow prevention does not create unnecessary surge or slam.
M13L5 – Selecting Valves for Pressure Protection Service
Pressure-protection valve selection is organised around overpressure scenarios, set pressure, code compliance, discharge routing, and awareness of certified sizing. Learners examine the information that must be defined before a protective device is specified. The material reinforces that pressure protection involves the complete relieving duty and discharge arrangement, not only the valve body.
M13L6 – Selecting Valves for Corrosive and Erosive Service
Valve selection for corrosive and erosive service is examined through material compatibility, liners, coatings, hard-facing, velocity control, and maintenance impact. Learners compare protective approaches and consider how chemical attack and flow-related wear affect different parts of the valve. The discussion links material and surface choices with operating conditions and expected maintenance.
M13L7 – Selecting Valves for Steam and High-Temperature Service
Steam and high-temperature valve selection is explored through thermal expansion, packing, gaskets, seat materials, condensate effects, and steam leakage. Learners examine how elevated temperature affects sealing and component behaviour. The material connects service temperature and steam conditions with the material, construction, and maintenance considerations required for suitable selection.
M13L8 – Selecting Valves for Slurry and Dirty Service
Valve selection for slurry and dirty service is examined through solids, scale, fibres, suspended particles, clogging, and wear-resistant designs. Learners consider how material carried in the fluid can obstruct passages or damage internal parts. The discussion supports comparison of valve types according to flow path, closure arrangement, wear exposure, and maintenance needs.
M13L9 – Selecting Valve Materials and End Connections
Selecting valve materials and end connections is organised around body, trim, and seat materials together with flanged, welded, threaded, wafer, lug, and clamp connections. Learners examine how pressure boundary, wetted parts, sealing elements, and piping attachment must suit the same service. The material supports consistent completion of the valve specification.
M13L10 – Valve Datasheets and Technical Specifications
Valve datasheets and technical specifications are examined through complete field entry, unclear requirements, inspection needs, testing requirements, and documentation. Learners consider how missing or ambiguous information can affect procurement and verification. The discussion shows how a clear datasheet communicates the required valve construction, performance, inspection, testing, and records.
The valve selection workflow begins by defining service duty, fluid, pressure, temperature, flow, safety, maintenance, and operating needs. Learners examine how these factors form the basis of a structured decision rather than selecting by valve type alone. The material organises the required information so suitable options can be compared against the actual service.
M13L2 – Selecting Valves for Isolation Service
Selecting valves for isolation service is examined through shutoff tightness, pressure drop, operating frequency, and the difference between clean and dirty service. Learners consider how each factor changes the suitability of available valve types. The discussion supports selection of an isolation valve that can close as required without ignoring flow resistance or service conditions.
M13L3 – Selecting Valves for Throttling Service
Throttling-valve selection is explored through control range, pressure drop, cavitation risk, erosion risk, and suitable regulation options. Learners examine why not every isolation valve should be used for partial opening and how demanding pressure conditions affect the choice. The material provides a practical basis for comparing valves intended for controlled restriction of flow.
M13L4 – Selecting Valves for Check Service
Check-valve selection is examined through reverse-flow risk, pump protection, water hammer, orientation, and closure behaviour. Learners consider how the expected direction change and installation arrangement influence valve choice. The discussion connects protection needs with closing speed and operating behaviour so backflow prevention does not create unnecessary surge or slam.
M13L5 – Selecting Valves for Pressure Protection Service
Pressure-protection valve selection is organised around overpressure scenarios, set pressure, code compliance, discharge routing, and awareness of certified sizing. Learners examine the information that must be defined before a protective device is specified. The material reinforces that pressure protection involves the complete relieving duty and discharge arrangement, not only the valve body.
M13L6 – Selecting Valves for Corrosive and Erosive Service
Valve selection for corrosive and erosive service is examined through material compatibility, liners, coatings, hard-facing, velocity control, and maintenance impact. Learners compare protective approaches and consider how chemical attack and flow-related wear affect different parts of the valve. The discussion links material and surface choices with operating conditions and expected maintenance.
M13L7 – Selecting Valves for Steam and High-Temperature Service
Steam and high-temperature valve selection is explored through thermal expansion, packing, gaskets, seat materials, condensate effects, and steam leakage. Learners examine how elevated temperature affects sealing and component behaviour. The material connects service temperature and steam conditions with the material, construction, and maintenance considerations required for suitable selection.
M13L8 – Selecting Valves for Slurry and Dirty Service
Valve selection for slurry and dirty service is examined through solids, scale, fibres, suspended particles, clogging, and wear-resistant designs. Learners consider how material carried in the fluid can obstruct passages or damage internal parts. The discussion supports comparison of valve types according to flow path, closure arrangement, wear exposure, and maintenance needs.
M13L9 – Selecting Valve Materials and End Connections
Selecting valve materials and end connections is organised around body, trim, and seat materials together with flanged, welded, threaded, wafer, lug, and clamp connections. Learners examine how pressure boundary, wetted parts, sealing elements, and piping attachment must suit the same service. The material supports consistent completion of the valve specification.
M13L10 – Valve Datasheets and Technical Specifications
Valve datasheets and technical specifications are examined through complete field entry, unclear requirements, inspection needs, testing requirements, and documentation. Learners consider how missing or ambiguous information can affect procurement and verification. The discussion shows how a clear datasheet communicates the required valve construction, performance, inspection, testing, and records.
Module 14 – Installation, Commissioning, Operation, and Safety
M14L1 – Valve Handling and Storage
Valve handling and storage practices are examined through protection of end connections, seats, sealing surfaces, and internal cleanliness. Learners also consider transport and lifting requirements that prevent damage before installation. The material connects careful handling with preservation of valve condition, cleanliness, sealing performance, and readiness for service.
M14L2 – Valve Installation Practices
Valve installation practices are organised around flow direction, orientation, flange alignment, gasket placement, pipe stress, and support requirements. Learners examine how each factor can affect sealing, movement, and service performance after installation. The discussion supports correct positioning and connection of the valve without forcing it to compensate for piping problems.
M14L3 – Commissioning and Pre-Startup Checks
Commissioning and pre-startup checks are examined through visual inspection, position verification, stroke testing, actuator checks, and leak checks. Learners follow the main confirmations needed before the valve enters service. The material connects physical condition, correct position, full movement, actuator response, and containment with readiness for startup.
M14L4 – Safe Valve Operation
Safe valve operation is explained through correct opening and closing, avoidance of excessive force, and precautions for high-pressure and hot systems. Learners examine how improper operation can create risk or damage. The discussion reinforces controlled movement, awareness of system conditions, and the need to stop when abnormal resistance is encountered.
M14L5 – Lockout, Isolation, and Bleed Practices
Lockout, isolation, and bleed practices are examined through safe isolation, depressurisation, double block and bleed awareness, and precautions for hazardous service. Learners consider how stored pressure and trapped fluid must be addressed before work begins. The material connects valve position with verification and safe release of hazardous energy.
Valve handling and storage practices are examined through protection of end connections, seats, sealing surfaces, and internal cleanliness. Learners also consider transport and lifting requirements that prevent damage before installation. The material connects careful handling with preservation of valve condition, cleanliness, sealing performance, and readiness for service.
M14L2 – Valve Installation Practices
Valve installation practices are organised around flow direction, orientation, flange alignment, gasket placement, pipe stress, and support requirements. Learners examine how each factor can affect sealing, movement, and service performance after installation. The discussion supports correct positioning and connection of the valve without forcing it to compensate for piping problems.
M14L3 – Commissioning and Pre-Startup Checks
Commissioning and pre-startup checks are examined through visual inspection, position verification, stroke testing, actuator checks, and leak checks. Learners follow the main confirmations needed before the valve enters service. The material connects physical condition, correct position, full movement, actuator response, and containment with readiness for startup.
M14L4 – Safe Valve Operation
Safe valve operation is explained through correct opening and closing, avoidance of excessive force, and precautions for high-pressure and hot systems. Learners examine how improper operation can create risk or damage. The discussion reinforces controlled movement, awareness of system conditions, and the need to stop when abnormal resistance is encountered.
M14L5 – Lockout, Isolation, and Bleed Practices
Lockout, isolation, and bleed practices are examined through safe isolation, depressurisation, double block and bleed awareness, and precautions for hazardous service. Learners consider how stored pressure and trapped fluid must be addressed before work begins. The material connects valve position with verification and safe release of hazardous energy.
Module 15 – Valve Inspection, Testing, Maintenance, and Troubleshooting
M15L1 – Valve Inspection Methods
Valve inspection methods are compared through external inspection, internal inspection, leakage checks, corrosion checks, and actuator inspection. Learners examine what each method can reveal about valve condition and performance. The discussion supports a structured inspection that considers the pressure boundary, internal parts, sealing points, operating mechanism, and attached actuator.
M15L2 – Valve Shell and Seat Testing
Valve shell and seat testing are explained through shell tests, seat-leakage tests, test pressure, acceptance criteria, and test records. Learners distinguish pressure-boundary verification from shutoff verification and examine how results are judged. The material reinforces the need to document test conditions and acceptance rather than recording only that a valve was tested.
M15L3 – Functional and Stroke Testing
Functional and stroke testing are examined through manual operation checks, actuator stroke testing, travel verification, and position feedback. Learners consider how these checks confirm that the valve moves through the required range and reports its position correctly. The discussion connects mechanical movement, actuator response, and indication with functional performance.
M15L4 – Pressure Relief Valve Testing
Pressure relief valve testing is studied through set-pressure testing, the popping test, calibration, certification, and maintenance intervals. Learners examine how testing confirms opening behaviour and why records and periodic attention are important. The material connects test results with adjustment, documented verification, and continued readiness of the protective device.
M15L5 – Preventive Valve Maintenance
Preventive valve maintenance is organised around lubrication, valve exercising, packing adjustment, fastener checks, and spare-parts planning. Learners examine how routine attention supports movement, sealing, joint condition, and maintenance readiness. The discussion helps distinguish planned preventive activities from repair work performed only after a valve has failed.
M15L6 – Valve Repair and Replacement Decisions
Valve repair and replacement decisions are examined through seat lapping, trim repair, packing replacement, actuator repair, and replacement economics. Learners compare available corrective actions with the option of replacing the valve. The material supports a practical decision based on the affected component, repair scope, valve condition, and relative cost of continued restoration.
M15L7 – Troubleshooting Valve Leakage
Valve leakage troubleshooting is organised around internal passing, packing leakage, gasket leakage, and body-bonnet leakage. Learners examine the likely location of each leakage path and connect observed symptoms with causes and solutions. The discussion helps separate leakage through a closed valve from external leakage at stem or pressure-boundary joints.
M15L8 – Troubleshooting Mechanical Problems
Mechanical valve problems are examined through sticking, jamming, high torque, vibration, noise, seat damage, and stem problems. Learners connect these symptoms with the parts and movements that may be affected. The material supports systematic troubleshooting rather than treating every difficult-to-operate valve as the same type of failure.
M15L9 – Troubleshooting Control and Actuator Problems
Control and actuator troubleshooting is explored through poor control response, positioner faults, actuator faults, air-supply issues, and signal problems. Learners examine how each part of the control path can prevent correct valve movement. The discussion supports separating process-control symptoms from faults in the signal, accessory, actuator, or air supply.
M15L10 – Valve Documentation and Maintenance Records
Valve documentation and maintenance records are examined through datasheets, certificates, inspection history, maintenance records, and spare-parts records. Learners consider how these documents preserve technical and service information throughout the valve lifecycle. The material connects accurate records with specification checks, traceability, maintenance planning, and review of previous condition or work.
Valve inspection methods are compared through external inspection, internal inspection, leakage checks, corrosion checks, and actuator inspection. Learners examine what each method can reveal about valve condition and performance. The discussion supports a structured inspection that considers the pressure boundary, internal parts, sealing points, operating mechanism, and attached actuator.
M15L2 – Valve Shell and Seat Testing
Valve shell and seat testing are explained through shell tests, seat-leakage tests, test pressure, acceptance criteria, and test records. Learners distinguish pressure-boundary verification from shutoff verification and examine how results are judged. The material reinforces the need to document test conditions and acceptance rather than recording only that a valve was tested.
M15L3 – Functional and Stroke Testing
Functional and stroke testing are examined through manual operation checks, actuator stroke testing, travel verification, and position feedback. Learners consider how these checks confirm that the valve moves through the required range and reports its position correctly. The discussion connects mechanical movement, actuator response, and indication with functional performance.
M15L4 – Pressure Relief Valve Testing
Pressure relief valve testing is studied through set-pressure testing, the popping test, calibration, certification, and maintenance intervals. Learners examine how testing confirms opening behaviour and why records and periodic attention are important. The material connects test results with adjustment, documented verification, and continued readiness of the protective device.
M15L5 – Preventive Valve Maintenance
Preventive valve maintenance is organised around lubrication, valve exercising, packing adjustment, fastener checks, and spare-parts planning. Learners examine how routine attention supports movement, sealing, joint condition, and maintenance readiness. The discussion helps distinguish planned preventive activities from repair work performed only after a valve has failed.
M15L6 – Valve Repair and Replacement Decisions
Valve repair and replacement decisions are examined through seat lapping, trim repair, packing replacement, actuator repair, and replacement economics. Learners compare available corrective actions with the option of replacing the valve. The material supports a practical decision based on the affected component, repair scope, valve condition, and relative cost of continued restoration.
M15L7 – Troubleshooting Valve Leakage
Valve leakage troubleshooting is organised around internal passing, packing leakage, gasket leakage, and body-bonnet leakage. Learners examine the likely location of each leakage path and connect observed symptoms with causes and solutions. The discussion helps separate leakage through a closed valve from external leakage at stem or pressure-boundary joints.
M15L8 – Troubleshooting Mechanical Problems
Mechanical valve problems are examined through sticking, jamming, high torque, vibration, noise, seat damage, and stem problems. Learners connect these symptoms with the parts and movements that may be affected. The material supports systematic troubleshooting rather than treating every difficult-to-operate valve as the same type of failure.
M15L9 – Troubleshooting Control and Actuator Problems
Control and actuator troubleshooting is explored through poor control response, positioner faults, actuator faults, air-supply issues, and signal problems. Learners examine how each part of the control path can prevent correct valve movement. The discussion supports separating process-control symptoms from faults in the signal, accessory, actuator, or air supply.
M15L10 – Valve Documentation and Maintenance Records
Valve documentation and maintenance records are examined through datasheets, certificates, inspection history, maintenance records, and spare-parts records. Learners consider how these documents preserve technical and service information throughout the valve lifecycle. The material connects accurate records with specification checks, traceability, maintenance planning, and review of previous condition or work.
Module 16 – Real-World Industrial Applications
M16L1 – Valves in Oil, Gas, and Petrochemical Systems
Valve applications in oil, gas, and petrochemical systems are reviewed through pipelines, process units, wellheads, tank farms, shutdown systems, and fire-safe requirements. Learners examine how different duties appear across these facilities and why safety-related service affects valve selection. The material connects industrial context with isolation, control, protection, and emergency functions.
M16L2 – Valves in Water and Wastewater Systems
Valves in water and wastewater systems are examined through pump stations, pipelines, treatment plants, air management, sludge service, and backflow prevention. Learners relate valve types and duties to clean-water and solids-containing applications. The discussion brings together flow control, isolation, non-return operation, air handling, and maintenance concerns within these systems.
M16L3 – Valves in HVAC and Utility Systems
HVAC and utility valve applications are reviewed through chilled water, hot water, cooling water, balancing, flow control, isolation, and commissioning. Learners examine how valves support distribution and adjustment across utility circuits. The material connects selection and operation with the need to balance, regulate, isolate, and verify system performance during commissioning.
M16L4 – Valves in Power and Steam Systems
Valve use in power and steam systems is examined through boilers, steam distribution, condensate, feedwater, cooling water, blowdown, and safety valves. Learners relate valve duties to the movement, control, isolation, and protection of these services. The discussion integrates high-temperature operation, condensate handling, discharge duties, and pressure protection within the stated systems.
M16L5 – Valves in Chemical Process Systems
Chemical-process valve applications are reviewed through corrosive and toxic fluids, lined valves, diaphragm valves, relief systems, and material compatibility. Learners examine how containment, corrosion resistance, isolation, and pressure protection shape valve choices. The material connects fluid hazards with suitable construction, sealing, protective devices, and maintenance considerations.
M16L6 – Valves in Food Systems
Valves in food systems are examined through sanitary service, cleanability, contamination control, hygienic design, and documentation. Learners consider how valve construction and maintenance must support clean product-contact conditions. The discussion connects hygienic application requirements with suitable valve design, operating practices, cleaning expectations, contamination prevention, and the records used to document the service.
M16L7 – Valves in Pharmaceutical Systems
Valve applications in pharmaceutical systems are reviewed through sanitary service, cleanability, contamination control, hygienic design, and documentation. Learners examine how these requirements influence valve construction, use, and maintenance. The material connects controlled product-contact conditions with cleanable design, contamination prevention, hygienic operation, and the supporting records required for the application.
M16L8 – Practical Valve Comparison Review
The practical valve comparison review evaluates valve types by duty, pressure drop, leakage, cost, reliability, maintenance, and service limits. Learners compare these factors together rather than selecting from one characteristic alone. The material consolidates the course content into a structured basis for recognising trade-offs among different industrial valve options.
M16L9 – Final Valve Selection Case Study
The final valve selection case study brings together fluid data, pressure, temperature, duty, material, rating, end connection, actuator, testing, and documentation. Learners apply the complete sequence as one selection exercise and examine how each requirement affects the final specification. The case study reinforces a consistent, evidence-based approach to industrial valve selection.
Valve applications in oil, gas, and petrochemical systems are reviewed through pipelines, process units, wellheads, tank farms, shutdown systems, and fire-safe requirements. Learners examine how different duties appear across these facilities and why safety-related service affects valve selection. The material connects industrial context with isolation, control, protection, and emergency functions.
M16L2 – Valves in Water and Wastewater Systems
Valves in water and wastewater systems are examined through pump stations, pipelines, treatment plants, air management, sludge service, and backflow prevention. Learners relate valve types and duties to clean-water and solids-containing applications. The discussion brings together flow control, isolation, non-return operation, air handling, and maintenance concerns within these systems.
M16L3 – Valves in HVAC and Utility Systems
HVAC and utility valve applications are reviewed through chilled water, hot water, cooling water, balancing, flow control, isolation, and commissioning. Learners examine how valves support distribution and adjustment across utility circuits. The material connects selection and operation with the need to balance, regulate, isolate, and verify system performance during commissioning.
M16L4 – Valves in Power and Steam Systems
Valve use in power and steam systems is examined through boilers, steam distribution, condensate, feedwater, cooling water, blowdown, and safety valves. Learners relate valve duties to the movement, control, isolation, and protection of these services. The discussion integrates high-temperature operation, condensate handling, discharge duties, and pressure protection within the stated systems.
M16L5 – Valves in Chemical Process Systems
Chemical-process valve applications are reviewed through corrosive and toxic fluids, lined valves, diaphragm valves, relief systems, and material compatibility. Learners examine how containment, corrosion resistance, isolation, and pressure protection shape valve choices. The material connects fluid hazards with suitable construction, sealing, protective devices, and maintenance considerations.
M16L6 – Valves in Food Systems
Valves in food systems are examined through sanitary service, cleanability, contamination control, hygienic design, and documentation. Learners consider how valve construction and maintenance must support clean product-contact conditions. The discussion connects hygienic application requirements with suitable valve design, operating practices, cleaning expectations, contamination prevention, and the records used to document the service.
M16L7 – Valves in Pharmaceutical Systems
Valve applications in pharmaceutical systems are reviewed through sanitary service, cleanability, contamination control, hygienic design, and documentation. Learners examine how these requirements influence valve construction, use, and maintenance. The material connects controlled product-contact conditions with cleanable design, contamination prevention, hygienic operation, and the supporting records required for the application.
M16L8 – Practical Valve Comparison Review
The practical valve comparison review evaluates valve types by duty, pressure drop, leakage, cost, reliability, maintenance, and service limits. Learners compare these factors together rather than selecting from one characteristic alone. The material consolidates the course content into a structured basis for recognising trade-offs among different industrial valve options.
M16L9 – Final Valve Selection Case Study
The final valve selection case study brings together fluid data, pressure, temperature, duty, material, rating, end connection, actuator, testing, and documentation. Learners apply the complete sequence as one selection exercise and examine how each requirement affects the final specification. The case study reinforces a consistent, evidence-based approach to industrial valve selection.