The Patay Non-Return Valve is made from Polypropylene with Nitrile Valves. It is available in three sizes to suit our most common hose sizes.
Our Non-Return Valves are simple and effective, a weighted Nitrile flap (valve) is held open by the flow of fluid through the intake hose. Should the flow reverse, the flap closes, preventing backflow. Made in Cornwall.
Note: These Non-Return Valves are not suitable for plumbing applications.
1 1/2" (38mm), 1" (25mm), 3/4" (19mm)
Not sure what diaphragm type to pick?
Check our diaphragm compatibility information
Customize your pump to meet specific demands
Manufacturing on site means we are able to meet specific demands, so let’s talk about what you need.
Get in touch