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  2. 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.

  3. Pneumatic cylinder - Wikipedia

    en.wikipedia.org/wiki/Pneumatic_cylinder

    Pneumatic telescoping cylinder, 8-stages, single-acting, retracted and extended. Telescoping cylinders, also known as telescopic cylinders can be either single or double-acting. The telescoping cylinder incorporates a piston rod nested within a series of hollow stages of increasing diameter.

  4. Single- and double-acting cylinders - Wikipedia

    en.wikipedia.org/wiki/Single-_and_double-acting...

    A single-acting cylinder in a reciprocating engine is a cylinder in which the working fluid acts on one side of the piston only. A single-acting cylinder relies on the load, springs, other cylinders, or the momentum of a flywheel, to push the piston back in the other direction. Single-acting cylinders are found in most kinds of reciprocating ...

  5. Pneumatic circuit - Wikipedia

    en.wikipedia.org/wiki/Pneumatic_circuit

    In general, based on the application, a pneumatic cylinder is usually a single-acting cylinder, where there is a single port in the cylinder. In single-acting cylinders, the port extends using compressed air and retracts using an open coiled spring. In double-acting cylinders, two ports both extend and retract using compressed air.

  6. Solenoid valve - Wikipedia

    en.wikipedia.org/wiki/Solenoid_valve

    Solenoid valves are also characterized by how they operate. A small solenoid can generate a limited force. An approximate relationship between the required solenoid force F s, the fluid pressure P, and the orifice area A for a direct acting solenoid valve is: [3] = = where d is the orifice diameter.

  7. Valve actuator - Wikipedia

    en.wikipedia.org/wiki/Valve_actuator

    The blue valve body is visible in-line with the pipe. The valve actuator opens or closes the butterfly disc of the valve based on electrical signals sent to the actuator. Another valve actuator is visible in the background, with windows to indicate the valve position. A valve actuator is the mechanism for opening and closing a valve. Manually ...

  8. Actuator - Wikipedia

    en.wikipedia.org/wiki/Actuator

    Pneumatic actuator operating a valve through a rack-and-pinion mechanism. [7] A pneumatic actuator is similar to a hydraulic one but uses a gas (usually air) instead of a liquid. [8] [9] Compared to hydraulic actuators, pneumatic ones are less complicated because they do not need pipes for the return and recycling of the working fluid. On the ...

  9. Poppet valve - Wikipedia

    en.wikipedia.org/wiki/Poppet_valve

    The word poppet shares etymology with "puppet": it is from the Middle English popet ("youth" or "doll"), from Middle French poupette, which is a diminutive of poupée.The use of the word poppet to describe a valve comes from the same word applied to marionettes, which, like the poppet valve, move bodily in response to remote motion transmitted linearly.

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