Relief valve avoids leakage
A
Lee Products product story
Edited by the Engineeringtalk editorial team
Jul 2, 2008
The Lee 281 zero leak relief valve is designed for applications such as aircraft cowl door mechanisms, where it will prevent the leakage of oil onto a runway when operating at normal system pressure.
Lee Products has released a miniature relief valve which is suitable for thermal relief and low-flow hydraulic pressure relief applications where zero leakage is essential.
The Lee 281 zero leak relief valve is designed for applications such as aircraft cowl door mechanisms, where it will prevent the leakage of oil onto a runway when operating at normal system pressure, but will activate overboard in an emergency, at higher pressures.
The cracking pressure of these valves is preset at the factory, with capabilities ranging from 90 up to 324bar.
The valve provides typical flow rates ranging from a few millilitres per minute for thermal relief applications and up to 250 megalitres a minute for low flow-pressure relief applications.
These valves, which weigh 6g, are 100% tested and inspected and are designed for operating temperatures of between -54 and +135C.
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