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2. Breathing performance of regulators - Wikipedia

   en.wikipedia.org/wiki/Breathing_performance_of...

   The US Navy procedure has been to test regulators primarily at a depth of 190 fsw (58 msw) in water 28 to 29 °F (−2 to −2 °C) at a very high breathing rate of 62.5 lpm for a minimum of 30 minutes, with inlet pressure to the first stage of 1,500 pounds per square inch (100 bar), which results in an average second stage inlet temperature of ...

3. Regulator (automatic control) - Wikipedia

   en.wikipedia.org/wiki/Regulator_(automatic_control)

   Examples are a voltage regulator (which can be a transformer whose voltage ratio of transformation can be adjusted, or an electronic circuit that produces a defined voltage), a pressure regulator, such as a diving regulator, which maintains its output at a fixed pressure lower than its input, and a fuel regulator (which controls the supply of ...

4. Control valve - Wikipedia

   en.wikipedia.org/wiki/Control_valve

   The pneumatic control signals are traditionally based on a pressure range of 3–15 psi (0.2–1.0 bar), or more commonly now, an electrical signal of 4-20mA for industry, or 0–10 V for HVAC systems. Electrical control now often includes a "Smart" communication signal superimposed on the 4–20 mA control current, such that the health and ...

5. Pressure regulator - Wikipedia

   en.wikipedia.org/wiki/Pressure_regulator

   A typical nominal regulated gauge pressure from a medical oxygen regulator is 3.4 bars (50 psi), for an absolute pressure of approximately 4.4 bar and a pressure ratio of about 4.4 without back pressure, so they will have choked flow in the metering orifices for a downstream (outlet) pressure of up to about 2.3 bar absolute.

6. List of aviation, avionics, aerospace and aeronautical ...

   en.wikipedia.org/wiki/List_of_aviation,_avionics...

   Audio Control Panel ACR Avionic Communication Router ACS 1: Airman Certification Standards [4] FAA pilot testing ACS 2: Audio control system ACU 1: Air condition unit ACU 2: Alternator control unit [2] Protection from alternator over-voltage. AD Airworthiness Directive: ADA Advisory area ADAHRS Air data attitude heading reference system ADC Air ...

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