Low Pressure Expansion Control Valves limit the maximum pressure in a pressurised, unvented water heater system by relieving excess pressure to the drain line.

These valves are available in 15mm and 20mm configurations.

• Increased heating efficiency
• Releasing pressure at the inlet saves energy by not purging heated water
• Auxiliary pressure relief device
• 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