• 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