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2. Solenoid valve - Wikipedia

   en.wikipedia.org/wiki/Solenoid_valve

   A solenoid valve is an electromechanically operated valve. ... Solenoid valves are used in fluid power pneumatic and hydraulic systems, to control cylinders, ...

3. 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 ...

4. Solenoid (engineering) - Wikipedia

   en.wikipedia.org/wiki/Solenoid_(engineering)

   Solenoid of a pneumatic valve. A pneumatic solenoid valve is a switch for routing air to any pneumatic device, usually an actuator, allowing a relatively small signal to control a large device. It is also the interface between electronic controllers and pneumatic systems. [citation needed]

5. Pneumatics - Wikipedia

   en.wikipedia.org/wiki/Pneumatics

   A pneumatic system controlled through manual or automatic solenoid valves is selected when it provides a lower cost, more flexible, or safer alternative to electric motors, and hydraulic actuators. Pneumatics also has applications in dentistry, construction, mining, and other areas.

6. List of valves - Wikipedia

   en.wikipedia.org/wiki/List_of_valves

   Plug valve, slim valve for on–off control but with some pressure drop; Solenoid valve, an electrically actuated valve for hydraulic or pneumatic fluid control; Spool valve, for hydraulic control; similar to the choke valve

7. Solenoid - Wikipedia

   en.wikipedia.org/wiki/Solenoid

   For rigid air-core coils, inductance is a function of coil geometry and number of turns, and is independent of current. Similar analysis applies to a solenoid with a magnetic core, but only if the length of the coil is much greater than the product of the relative permeability of the magnetic core and the diameter. That limits the simple ...