Close Menu
Shut-Off Valves

375 Bypass Valve

Overview: 0.375 Inch Pilot-to-Close Bypass Valve

Description: Lee Bypass Valves are normally open, with a hydraulically-actuated pilot-to-close feature. They are designed to shunt flow across an actuator piston when the system pressure is either shut off or lost. The valve is available in a .375″ diameter insert for system pressures up to 4,000 psi. This miniature valve has a maximum restriction of 70 Lohms when fully open and weighs only 16 grams. The metal components are constructed entirely of stainless steel for durability and long life. Similar to Lee Shuttle Valves, Lee Bypass valves include a polyimide compression seal to ensure there is no external leakage across the three port design when properly installed.

  • Low Leakage: 1 Drop/Minute
  • 70 Lohms Maximum Restriction When Open
  • Designed for System Pressures up to 4000 PSI
CAD Envelopes:
Part Numbers:
Get in touch


From plugs to solenoid valves, there’s a vast array of products that The Lee Company can offer. If you’d like to discuss the best solution for your specific application or to learn more about our capabilities, use-cases, or quality standards, contact your local Lee sales engineer.