Double Check Valve 28mm

A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. It is different from the two-way check valves (sometimes erroneously referred to as double check valves) used in air brake systems on heavy trucks which select from the highest pressure source.

Compression Stop End 10mm

Compression Stop Ends. Our Compression Stop Ends are suitable for use on a wide variety of applications, including central heating and hot and cold water supplies. Compression Fittings do not require the use of solder, are ideal for use in areas with limited space and are a cost effective but robust solution.