Double check valves are used to prevent the risk of backflow and back siphonage contamination in domestic dwellings, public and commercial buildings
WRAS Approved for use with wholesome (potable) water to 85°C (85°C for threaded and 60°C for Compression)
Compression version supplied with ends complying with BS EN 1254-2 for use with BS EN 1057 R250 (half hard) copper tube or female taper threads complying with BS EN 10226-2
Shell pressure rating for D220W and D220CW is PN16 with a maximum inlet/working pressure of 16 bar
Compliant with BS EN 13959 ‘Anti- pollution check valves’ family E type D
