An individual-acting pneumatic actuator makes use of a single compressed air enter to turn the valve plus a spring to return the valve to the normal posture. A double-acting pneumatic actuator has two compressed air inputs to show the valve and return the valve to the first position. Functionality metrics https://pneumaticactuatortypes99220.wssblogs.com/14341942/the-definitive-guide-to-วาล-วต-ดห-วข-บ