Bypass Valves

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 and are available with multiple polymeric valve seat material options to achieve zero leakage in the checked direction under extreme hot or cold temperatures.

Lee Etched Safety Screens feature a seamless, one-piece, 304L CRES screen element formed with pleats to greatly increase the dirt carrying capacity of the screen. The result is a robust screen design with an optimum amount of protection in a small package. Lee etched safety screens are offered with several standard hole sizes including 75, 100, 150, 200, 250, 380, and 500 microns. Lee Spring Retained Safety Screens include a flange mount etched safety screen and a retention spring. This combination allows for an inexpensive mounting technique suitable for unidirectional flow. The spring O.D. is slightly larger than the I.D. of the mounting hole and a special tool is used to twist the spring into the hole. Once the tool is removed, the spring holds the screen in place.

Virtually all Lee miniature components, including check valves, flow controls, restrictors, and screens, are available already installed or built into Ring Locked Adapters. Design engineers can now take advantage of the unused space in their Ring Locked Adapters to save space and weight in their manifolds.

The Lee Company offers all these products in Ring Locked Adapters with three different tube ends: dynamic beam seal, flareless, and metric dynamic beam seal (8° 30’ lip-seal). Dynamic beam seal and flareless tube versions range in size from −4 to −10 (1/4 to 5/8 inch) and metric lip-seal versions range from 6 to 16 mm nominal tube O.D. Titanium has been selected as the adapter material for the lowest possible weight. All Ring Locked Adapters containing Lee components have blue lock rings to distinguish them from ordinary adapters, and permanent external marking to identify the function of the product inside.