RS Components
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Reliance 7bar Temperature and Pressure Relief Valve with Male 15 mm Compression Connection

This image is representative of the product range

On back order for despatch 17/12/2020, delivery within 7 working days from despatch date.
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RS Stock No.:
Mfr. Part No.:
Reliance Water Controls

RoHS Status: Not Applicable

COO (Country of Origin):
unitsPer unit
1 - 4$134.18
5 - 9$126.95
10 +$122.50

Full Cartridge Pressure and Temperature Relief Valve

All Reliance pressure vessels are supplied with a replaceable membrane, which separates the water and air, to prevent contamination of the water system, corrosion of the pressure vessel or pressure loss in the water system.

Typically pressure vessels are used in pumped systems. When the pump starts, the pressure inside the vessel begins to increase. Once the vessel is full and the pump has reached its high pressure setting it will switch off. When water is then drawn off from the system the air pressure surrounding the membrane will force the water out of the pressure vessel and into the system. Once the membrane is fully deflated and the system has reached its minimum pressure, the pump will start on its low pressure setting and will begin the cycle again.

The purpose of this system is to prevent constant cycling of the pump and continuous running when the system is being used

Protect against temperature rising above 95゚C
Prevent over pressurisation
Twist toop cartridge design for easy servicing
Range of different pressure settings and different probe lenghts


(7948432 no PTFE), (7948439, 7948448 and 7948457 with probe)



Connection15 mm Compression
Maximum Set Pressure7bar
Maximum Temperature+95°C
For Use WithHot Water
Connection GenderMale
Thread Size15in