pop-off valve

(redirected from Bleed Valve)
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pop-off valve

A safety valve that releases gas into the atmosphere from a ventilator circuit when the pressure in the circuit exceeds a known, safe level.
See also: valve
References in periodicals archive ?
It can be used on nearly 90 per cent of radiators and replacement bleed valves can be completed within five minutes,
A stroke time of an inter-stage bleed valve (IBV) could possibly be as fast as two seconds.
With a 5/8-in open-end wrench, loosen the track adjuster bleed valve just enough to allow grease to flow.
It comes with an optional port on the block valve for testing, adding an instrument or for flushing the process media through the bleed valve. A special lockout feature prevents any accidental opening of the valve during maintenance so the process media will not escape into the environment.
Valve equipment for the new plant includes Keystone Figure 320 and Figure 990 butterfly valves and a range of Tyco stainless steel double block and bleed ball valves, incorporating a built-in bleed valve to detect any leakage and to enable water and syrup to be segregated at all stages.
To bleed your radiator turn your heating system off, put an old cloth under the air bleed valve at the top of the radiator to catch any water, and very slowly turn the radiator key until you hear air hissing out.
The high pressure access fitting covers feature a bleed valve to release any pressure buildup and a pressure gauge to show any pressure that may have accumulated.
Then find the bleed valve. This is a small valve on the side of the radiator at the top.
To do this, turn the system off and allow it to cool down, then put a rag under the air bleed valve at the top of the affected radiator to catch any water.
Upgrade the radiators and valves To ensure that your radiators are working at full capacity, bleed them with a radiator key or small screwdriver (when the heating is off and the radiators are cold), depending on the type of bleed valve.
The high-pressure access fitting covers feature a bleed valve to release any pressure buildup and a pressure gauge to show any pressure that may have accumulated.
There will also be a protrusion near the top of the radiator, on one side, called the bleed valve.