According to AS3500.1:2003. All water feed appliances must have a backflow prevention valve fitted. This is to prevent the outgoing water from contaminating the source water.
A pressure limiting valve is also needed if the water feed appliances cannot withstand 2.6 mega Pascal of water pressure. As part of the Watermark requirement, all Watermark-approved appliances must have a pressure limiting valve with a dual check valve fitted.
Xsential XPV Watermark-approved valves have answered both situations. We have both 350kPa or 600kPa pressure limiting and dual check (backflow prevention) functions combined into one compact valve.
3/8” Quick Fit Plastic Pressure Limiting Valve With Dual Check
- Limiting pressure: 350kPa or 600kPa
- Inlet/ Outlet: 3/8” OD (quick connect)
- Maximum inlet pressure: 1200kPa
- Maximum flow: 15 L/min
- Max. temperature: 40ºC
Brass Body Pressure Limiting Valve With Dual Check
- Limiting pressure: 350kPa or 600kPa
- Inlet: DN15 female
- Outlet: unique design DN15 male and 1/4” female
- Maximum inlet pressure: 1200kPa
- Maximum flow: 15 L/min
- Max. temperature: 40ºC
Please note: all pressure valves should be replaced every 5 years due to tear and wear.