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Upgrade nowFunctional Controls: Strainers & PRVs
Read through the material below, then test your understanding.
Module Lessons
Hot Water Systems: Planning & Design
Fuels Used in Hot Water Systems
Open Vented Storage Systems
Unvented Storage Systems
Localised Water Heaters
Unvented System Pressures
Secondary Circulation Systems
Hot Water Safety Controls
Functional Controls: Strainers & PRVs
Expansion Devices & Check Valves
Pressure Relief, Tundish & Composite Valves
Discharge Pipework: Sizing & Termination
Design Information Sources
Sizing Cisterns & Storage Vessels
Hot Water Pipework Sizing
Sizing Circulation & Boosting Pumps
Sizing Expansion Vessels & Presenting Designs
Installing Unvented Hot Water Systems
Testing & Commissioning Hot Water Systems
Diagnosing Hot Water System Faults
Component Fault-Finding: Pumps, Vessels & Thermostats
Servicing & Maintaining Hot Water Systems
Lesson Overview
This lesson covers the design, operation, and maintenance of in-line strainers and pressure reducing valves (PRVs) within unvented domestic hot and cold water installations.
Learning Objectives
Explain the function and operating principles of in-line strainers and pressure reducing valves.
Identify the mechanical actions of PRVs under flow and no-flow (drop tight) conditions.
Recognise common faults, maintenance requirements, and rectification procedures for strainers and PRVs.
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