Check Valves

The Lee Company offers a check valve design made specifically for the requirements of the power generation industry. This field-proven component can be used in purge air, water injection, and liquid fuel applications. Featuring a stainless steel poppet and a polyimide seat, this component is capable of providing high flow with extremely low leakage. It can also operate at temperatures up to 450°F. Lastly and perhaps most importantly, the power generation check valve can be disassembled and serviced in the field using a rebuild kit, which helps to minimize downtime. Make use of the HI-BAR^® Safety Screen Filter (which is both removable and washable) to extend time between maintenance cycles.

Our line-up of poppet-style check valves offers exceptionally high flow capacity for their size compared to ball-style valves and includes our Lo-Lohm Cheks, Hi-Q Cheks, and High Pressure Cheks. The High Pressure Chek starts at a micro-miniature 0.125 inch diameter, yet still withstands up to 8000 psi. Meanwhile, the Hi-Q Chek offers the greatest feasible flow capacity for valves of this size. Available in sizes up to 1 inch in diameter in a cartridge configuration, the Hi-Q Chek valve can flow over 57 GPM with only a 100 psid pressure drop. Finally, the 0.250 inch Lo-Lohm Chek offers 3.5 times more flow than an axial flow ball-style check valve of the same diameter.

If you need a check valve that can withstand working pressures up to 15,000 psi and operating temperatures of up to 400°F, The Lee Company offers a solution to fit your needs. These valves are constructed of corrosion-resistant stainless steel. They are available with multiple polymeric valve seat material options to achieve zero leakage in the checked direction under extreme hot or cold temperatures.