Check Valves (Non Return Valves)

Check valves, also known as non-return valves, allow flow in one direction and close automatically to oppose reverse flow. Browse compact pneumatic check valves, threaded stainless steel models, brass diaphragm designs and flanged full-flow valves for compatible fluid systems. Selected designs provide quieter closing and help reduce water hammer. Choose according to the media, required flow rate, opening pressure, allowable pressure loss and installation orientation. Body and seal materials, connection sizes and operating limits vary by model. Replacement seal and spring kits are available for selected valves, with technical advice to help you choose.