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2. Pressure switch - Wikipedia

   en.wikipedia.org/wiki/Pressure_switch

   In dust control systems (bag filter), a pressure switch is mounted on the header which will raise an alarm when air pressure in the header is less than necessary. A differential pressure switch may be installed across a filter element to sense increased pressure drop, indicating the need for filter cleaning or replacement.

3. Railway air brake - Wikipedia

   en.wikipedia.org/wiki/Railway_air_brake

   The locomotive's air compressor typically charges the main reservoir with air at 125–140 psi (8.6–9.7 bar; 860–970 kPa). The train brakes are released by admitting reduced and regulated main reservoir air pressure to the brake pipe through the engineer's automatic brake valve.

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. Compressed air dryer - Wikipedia

   en.wikipedia.org/wiki/Compressed_air_dryer

   This is because a two-stage compressor derives its efficiency by pumping to a high pressure (150–175 PSI.) This pressure is inappropriate for the shop floor and must be dropped to (90–120 PSI.) The JT Dryer takes advantage of this pressure drop to remove moisture from the compressed air stream through the inherent refrigeration based on the ...

6. Air compressor - Wikipedia

   en.wikipedia.org/wiki/Air_compressor

   Air compressor supplies air into a nail gun.. An air compressor is a machine that takes ambient air from the surroundings and discharges it at a higher pressure. It is an application of a gas compressor and a pneumatic device that converts mechanical power (from an electric motor, diesel or gasoline engine, etc.) into potential energy stored in compressed air, which has many uses.

7. 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.