High Pressure Expansion Non-Return Valve
RMC’s High Pressure Expansion Non-Return (HPNR) Valves are a combination non-return and pressure relief device and are suitable for coil type heat exchange water heaters. The non-return prevents the backflow of hot water into the mains supply. The relief valve prevents an over-pressure condition within the coil.
- Economical one-piece construction
- One valve meets the requirements of expansion and non-return valve for heat exchange heaters
- Increased heating efficiency
- Expanded water is directed to the storage tank rather than dumped to waste
- Sealed spring cavity prevents spring from seizing in the event of calcification
- Dezincification resistant
- Meets Australian Standard for potable water supply
- Suitable for horizontal or vertical installation
- Individually tested and calibrated
HPNR503
15mm - HPNR Unrestricted
AS 1357.1
LIC WMKA 0938
SAI GLOBAL
HPNR503
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