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2. Air-operated valve - Wikipedia

   en.wikipedia.org/wiki/Air-operated_valve

   [1] [2] 3-way valves pressurize and exhaust one outlet port to control a single-acting cylinder or pilot another valve. [3] Three-way valves may be used in pairs to operate a double-acting cylinder, thus replacing a four-way valve. A primary function of the 3-way valve is to save/store air that's compressed in high cyclic applications. 4-way ...

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 brake (road vehicle) - Wikipedia

   en.wikipedia.org/wiki/Air_brake_(road_vehicle)

   Air compressor 7 Park brake hand control valve 2 Pressure regulator 8 Park brake safety release valve 3 Air dryer 9 Brake foot valve 4 Regeneration reservoir 10 Front air-brake chambers 5 Four-way protection valve 11 Brake-relay valve and load-sensing valve 6 Compressed-air reservoirs 12 Rear-spring brake chambers

5. Shuttle valve - Wikipedia

   en.wikipedia.org/wiki/Shuttle_valve

   Positioning a manual valve to neutral exhausts the air pilot pressure, closing the two-way valves, and trapping oil on both sides of the cylinder to lock it in position. [clarification needed] Standby and emergency systems: compressor systems requiring standby or purge gases capability are pressure controlled by the shuttle valve.

6. Control valve - Wikipedia

   en.wikipedia.org/wiki/Control_valve

   Globe control valve with pneumatic diaphragm actuator and "smart" positioner which will also feed back to the controller the actual valve position. Taking the example of an air-operated valve, there are two control actions possible: "Air or current to open" – The flow restriction decreases with increased control signal value. "Air or current ...

7. 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.