pop-off 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 ?
Then follow the rest of the air bleed valve installation procedures called out in IETM 9-1055-1646- I3&P [see "Hydraulic Fluid Reservoir Air Bleed Valve Removal and Installation "], including the HCS maintenance follow-on procedures [see "HCS After Maintenance Follow-on Procedure"].
The axial compressor inter-stage bleed valve (IBV) should also be opened to provide sufficient flow to the compressor suction to avoid the surge at initial stage(s).
Re-tighten the bleed valve and wipe away excess grease.
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.
Smiths Aerospace scope of equipment consists of the bleed air system controller, the pressure regulating and shutoff valves (PRSOVs), fan air valves, cross bleed valve, wing and horizontal stabilizer anti-ice valves, and the engine reverse flow check valves.
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.
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.
Turn the key anticlockwise in the bleed valve at the top of the radiator and you'll hear a hissing sound, which is the sound of the air releasing.
The bleed valve is usually at the top of the radiator and the shape of the hole will determine what you use to bleed it.
To bleed a radiator, insert the radiator key or screwdriver into the bleed valve and turn slowly to open it.