Check Valves

Our most economical design, these simple check valves provide flow around a 440C ball which forms the sealing element.

Axial style ball check valves are designed for 3000 psi systems and are available in 0.187 and 0.250 inch diameter envelopes, screened and unscreened, and in forward and reverse flow configurations.

Side exit check valves with porting allow the ball to move out of the flow path, creating an increased flow capacity and enhanced silt resistance in package sizes ranging from 0.093 to 0.343 inch.

HFS (High Flow Slotted) check valves offer up to three times the flow capacity and a 5000 psi operating pressure rating in a significantly smaller package that includes 0.156, 0.187, and 0.250 inch diameters.

Lee Zero Leak Cheks feature an elastomeric seat material for applications where eliminating leakage is critical. They utilize a poppet-style, axial flow design with a choice of two different elastomers and are available in 0.187, 0.250, 0.375, and 0.500 inch diameters.

Lee Pilot-Operated Cheks are pressure piloted to open check valves available in diameters from 0.250 to 0.500 of an inch. When pressure is applied to the pilot port, flow is allowed in the normally blocked direction. While our base version is a poppet-style valve designed for 3000 psi systems, our high pressure models are designed for system pressures of up to 5000 psi and are available in forward and reverse flow configurations.

Custom configurations with zero leak seals are available upon request.