High Pressure Expansion Non-Return Valve

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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