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Lee shut-off valves function as normally-open check valves used to shut off flow under specified conditions. We offer two types of shut-off valves – bypass valves and flow fuses. Bypass valves are hydraulically piloted to shut off the flow, while flow fuses shut off flow when the flow rate through the valve reaches a defined limit.
Flow fuses are found throughout critical hydraulic systems. In the event of a system breach, the fuse will sense an increase in flow rate and shut off, preserving hydraulic power and functions upstream of the fuse. A flow fuse can also function as a vent valve to purge trapped air or vapor out of a fluidic system, such as a fuel system during engine start-up.
Lee shut-off valves are known for their miniature size (which helps save weight and space in critical applications), easy installation, and precise, reliable performance. Read our Tech Talk for Engine Shut-Off Valves to learn more.
Partner with The Lee Company and get much more than just a supplier of top-quality fluid control products. Our reliable technical support team is available every step of the way to help you find solutions, maximize productivity, and drive efficiency across your operations. Check out these aerospace and defense-specific resources to learn more.
Always verify flow calculations by experiment.
*There are many parameters to consider when determining V-Factor. Click here for more information.
