Safety Relief Valves

Safety Relief Valves

Safety relief valves are designed to be fast-acting components that protect systems with the potential for sudden pressure spikes. These valves may sit dormant for indeterminate amounts of time before needing to be used, so it’s crucial that they always work as intended. Our safety relief valves are available in low-leak and tight hysteresis configurations. To ensure reliable operation, we 100% test each component for crack, flow point and reseat pressure.

Our safety relief valves are available in 0.187, 0.250, 0.281 and 0.375 inch insert diameters and 0.687 inch threaded configurations. They are constructed entirely of stainless steel and are available screened and unscreened. Built-in damping ensures quiet operation. Cracking pressures ranging from 20 to 5900 psid.
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Other Products and Services from Lee Products Ltd

Bypass Valves

Bypass Valves

Known for their durability, longevity, and small size, Lee bypass valves are designed to shunt flow across an actuator piston when the system pressure is either shut off or lost. They are normally open, with a hydraulically actuated pilot-to-close feature. These stainless steel valves are available in a 0.375 inch diameter insert for system pressures up to 4000 psi, have a maximum restriction of 70 Lohms when fully open, and weigh only 16 grams each. 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.
Flosert Flow Regulators

Flosert Flow Regulators

For advanced applications, aircraft and defense manufacturers may wish to consider Lee Floserts. This is a pressure compensated flow control − in other words, the flow will remain constant across a wide range of differential pressures. A variable metering orifice automatically adjusts by sensing the flow rate in terms of differential pressure across a fixed orifice. Floserts are available with the Lee locking end for installation in diameters from 0.250 to 0.500 of an inch as well as a 0.687 inch threaded configuration. Also available are metered flow rates from 0.01 GPM up to 5 GPM, as well as high-pressure versions for operating pressures up to 5000 psi.
 Back Safety Screen Filters Etched Safety Screen, 10 mm Boss Mount, 304L

Back Safety Screen Filters Etched Safety Screen, 10 mm Boss Mount, 304L

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 Boss Mount Etched Safety Screens incorporate a threaded configuration and are available in six sizes ranging from 0.3125″ to 0.7500″ in addition to a metric 10mm thread.

Lee Products Ltd

3 High Street, Chalfont St Peter, Gerrards Cross, Buckinghamshire, SL9 9QE, United Kingdom

Part of The Lee Company, Lee Products are leaders in the development of miniature precision fluid control components, hydraulic components and mechanical components. Products include shuttle valves, safety screens, PRI, directional flow control and restrictors, plugs, checks and piloting solenoid valves, non-inert 2 & 3 way solenoid valves, high speed solenoid valves, variable & fixed displacement pumps, custom manifolds, static mixers and piezo valves.