Collection: Valves
Valves – Heating & Hot Water System Components
Valves play a critical role in the safe operation, control and maintenance of heating and hot water systems. From protecting systems against excessive pressure to regulating flow, temperature and circulation, selecting the correct valve type is essential for reliability, compliance and long-term performance.
At Heatraq, our valves range covers domestic, commercial and managed building applications. Each category is organised by function, making it easier to identify the correct component for installation, maintenance or replacement. All valves are sourced from trusted manufacturers and selected to meet UK safety and performance expectations.
Browse Valves by Function
Use the links below to quickly find the correct valve type for your system:
- Safety & Relief Valves – Protect systems from excessive pressure or temperature
- Water Control & Regulation Valves – Manage incoming pressure and inlet conditions
- Mixing & Temperature Control Valves – Deliver safe, controlled outlet temperatures
- Isolation & Service Valves – Allow safe maintenance, draining and refilling
- Motorised & Actuated Valves – Enable automated flow control
- System & Auxiliary Valves – Support circulation, balancing and water level control
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Heatrae Sadia 95605872 Check Valve Housing
Regular price £33.23 GBPRegular priceSale price £33.23 GBP -
Heatrae Sadia 95605875 Thermostatic Blending Valve
Regular price £244.47 GBPRegular priceSale price £244.47 GBP -
Heatrae Sadia 95605876 Temperature & Pressure Relief Valve
Regular price £101.19 GBPRegular priceSale price £101.19 GBP -
Heatrae Sadia 95605884 28mm 2 Port Motorised Valve Motor
Regular price £201.16 GBPRegular priceSale price £201.16 GBP -
Heatrae Sadia 95605885 Isolating Valve Megaflo Eco
Regular price £34.59 GBPRegular priceSale price £34.59 GBP -
Heatrae Sadia 95605886 3 Bar Pressure Reducing Valve
Regular price £92.61 GBPRegular priceSale price £92.61 GBP -
Heatrae Sadia 95605893 8 Bar Pressure Relief Valve Complete
Regular price £51.27 GBPRegular priceSale price £51.27 GBP -
Heatrae Sadia 95605896 Pressure Relief Valve
Regular price £36.53 GBPRegular priceSale price £36.53 GBP -
Heatrae Sadia 95605897 Cold Water Combination Valve Kit
Regular price £164.20 GBPRegular priceSale price £164.20 GBP -
Heatrae Sadia 95605888 8 Bar Pressure Relief Cartridge
Regular price £64.08 GBPRegular priceSale price £64.08 GBP -
Heatrae Sadia 95605870 8-Bar Expansion Relief Valve Cartridge
Regular price £34.33 GBPRegular priceSale price £34.33 GBP -
Heatrae Sadia 95605864 6-Bar Expansion Valve Cartridge
Regular price £35.31 GBPRegular priceSale price £35.31 GBP -
Heatrae Sadia 95605824 3-Bar Pressure Reducing Valve Cartridge
Regular price £121.39 GBPRegular priceSale price £121.39 GBP -
Heatrae Sadia 95605821 Temperature / Pressure Relief Valve 3/4 7 Bar
Regular price £105.02 GBPRegular priceSale price £105.02 GBP -
Heatrae Sadia 95605812 Swept Tee
Regular price £87.78 GBPRegular priceSale price £87.78 GBP -
Heatrae Sadia 95605195 Expansion Relief Valve 1 1/4" X 1 1/2" 13 Bar
Regular price £459.35 GBPRegular priceSale price £459.35 GBP
Heating & Hot Water Systems Valves – FAQ
What types of valves are used in heating and hot water systems?
Common valves include pressure relief valves, isolation valves, mixing valves, and safety valves, all essential for system control and protection.
How do I know which valve I need to replace?
Identify the valve type, pressure rating, and connection size. Matching the original valve specification or part number is recommended.
Why are pressure relief valves important?
Pressure relief valves protect heating and hot water systems by releasing excess pressure, helping to prevent system damage or failure.
Do you supply valves for commercial systems?
Yes, we stock valves suitable for domestic and commercial heating and hot water systems, including high-pressure applications.
Can a faulty valve affect system performance?
Yes, a faulty or worn valve can cause pressure issues, leaks, or reduced system efficiency and should be replaced promptly.