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  2. Automatic bleeding valve - Wikipedia

    en.wikipedia.org/wiki/Automatic_bleeding_valve

    Brass-bodied float valve. An automatic bleeding valve or air release valve (ARV) is a plumbing valve used to automatically release trapped air from a heating system. Air, or other gas, may collect within plumbing. For water delivery systems to taps and basins, particularly with good main supply pressure, this air is usually flushed through with ...

  3. APCO - Wikipedia

    en.wikipedia.org/wiki/APCO

    APCO may refer to: Apco Aviation, an Israeli aircraft manufacturer; APCO Worldwide, a public relations firm; Air Pollution Control Officer; Association of Public-Safety Communications Officials-International, an organization providing standards for telecommunications; APCO radiotelephony spelling alphabet, a phonetic spelling alphabet

  4. Air-operated valve - Wikipedia

    en.wikipedia.org/wiki/Air-operated_valve

    An air-operated valve, also known as a pneumatic valve, is a type of power-operated pipe valve that uses air pressure to perform a function similar to a solenoid. As air pressure is increased, the compressed air starts to push against the piston or diaphragm walls which causes the valve to actuate. Whether the valve opens or closes depends on ...

  5. List of valves - Wikipedia

    en.wikipedia.org/wiki/List_of_valves

    Choke valve, Butterfly valve used to limit air intake in internal combustion engine. (Not to be confused with choke valves used in industrial flow control, above.) Clapper valve: a type of check valve used in the Siamese fire appliance to allow only one hose to be connected instead of two (the clapper valve blocks the other side from leaking out)

  6. APCO-16 - Wikipedia

    en.wikipedia.org/wiki/APCO-16

    In telecommunications, APCO-16, (sometimes APCO Project 16 or Project 16) is a US standard for the characteristics and capabilities of public safety trunked radio systems. The standard development effort was started in the 1970s by the APCO , a trade association of mostly police and fire service providers.

  7. Blowoff valve - Wikipedia

    en.wikipedia.org/wiki/Blowoff_valve

    A blowoff valve is designed to release pressure in the intake system when the throttle is closed. A "recirculating" type blowoff valve releases the pressurised air back into the non-pressurized section of the intake (i.e. upstream of the turbocharger), while an "atmospheric venting" type blowoff valve dumps the air directly into the atmosphere.

  8. File:British Aerospace BAe-146-200A, Air France (CityJet ...

    en.wikipedia.org/wiki/File:British_Aerospace_BAe...

    Date/Time Thumbnail Dimensions User Comment; current: 23:41, 21 September 2013: 1,024 × 768 (412 KB): Fæ: Crop bottom 12 pixels to remove watermark (1024x768) 23:35, 21 September 2013

  9. Automatic fire suppression - Wikipedia

    en.wikipedia.org/wiki/Automatic_fire_suppression

    Electrical detection uses heat detectors equipped with self-restoring, normally-open contacts which close when a predetermined temperature is reached. Remote and local manual operation is also possible. Actuation usually involves either a pressurized fluid and a release valve, or in some cases an electric pump.

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