bleed valve


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bleed valve

[′blēd ‚valv]
(engineering)
A small-flow valve connected to a fluid process vessel or line for the purpose of bleeding off small quantities of contained fluid.

bleed valve

A valve designed to relieve the back pressure in a compressor, which helps to reduce the angle of attack of the rotor blades and prevent compressor stall and compressor surge. A bleed valve permits higher mass airflow through the compressor and reduces the mass flow through the combustion chambers and turbine. This minimizes the tendency to stall or surge. Also known as an air-release valve, a bleed valve, and a pop-off valve.
References in periodicals archive ?
A stroke time of an inter-stage bleed valve (IBV) could possibly be as fast as two seconds.
Fit the bleed key into the bleed valve and carefully turn it anti-clockwise only a little, usually just a quarter or half turn.
To loosen track tension, slowly open the bleed valve on the track adjuster to let grease out.
EDO will produce composite Variable Bleed Valve ducts for the GEnx engine using specialized composite braiding and resin-transfer-molding technologies.
This used to mean unscrewing a bleed valve with a square headed key.
A faulty bleed valve meant the flight had to be abandoned.
You will need to open the bleed valve about half a turn so that air can escape; close it when water starts to appear.
Tenders are invited for supply of double blockand bleed valve on off ball type, actuator operated as per technical specification at digboi refinery
To solve the problem, cover the floor under the bleed valve (usually at the side of the radiator) with newspaper or a dustsheet, insert a radiator key or small screwdriver and carefully turn it until you hear air escaping.
The Argus Pig Valve is described as a true double block and bleed valve that also allows pigs to be easily inserted or removed.
All radiators are provided with a bleed valve in one corner to allow trapped air to be released.