Double Union Flapper Non Return Valves

Superb quality Double Union Flapper Non Return Valves are made to exacting standards and are perfect for preventing return flow back to the pump when the pump is switched off or in the event of a power cut.

This Double Union Flapper Non Return Valve also know as 'Swing Check' valves have numerous advantages over the normal pressure non return valves, as they use a flap to stop the return flow and are not sprung, which requires a more powerful pump to hold the valve open. These Flapper non return valves do not create any back pressure on your pump, and the flap simply closes when the flow of water is stopped creating the non return function.

Compatible with Class E Pressure Pipe are availble in three sizes:

• 1-1/2 Inch Double Union Flapper Non Return Valve
• 2 Inch Double Union Flapper Non Return Valve
• 3 Inch Double Union Flapper Non Return Valve

These can also be reduced to use 1 Inch pressure and/or black solvent weld pipe with the relevant sized reducers