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Pneumatic Actuated Valve

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Hydraulic Actuated Valve

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A pneumatic valve is a type of valve that uses compressed air to control or actuate the flow of air (another gas) in a pneumatic system. They are used to control the volume of air flowing into and out of the system.

They are often used to operate devices that are difficult or impossible to move using other methods, such as pneumatics for assembly lines. Pneumatic control systems use a number of devices to measure air pressure and temperature

Hydraulic actuators are similar to pneumatic devices, only they use pressurized fluid instead of air or gas. The fluid — either water or oil — is fed to one or both sides of a piston to create movement. Hydraulic actuators can power both linear and rotary valves, and are most commonly used for offshore and upstream applications.

There are two different types of hydraulic actuators:

  • Single-Acting: Pressurized fluid actuates the valve in one direction. A compressed spring actuates the valve in the other direction.

  • Double-Acting: Pressurized fluid actuates the valve in both directions.

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