Single-acting pneumatic actuators and double-acting pneumatic actuators

Pneumatic actuators can be divided into two types of single and double action. Switch actuator motion are carried out through the air to drive, is called a double-acting actuators. Such as cylinder stretched out and retract movement in two directions is achieved by air reversing drive, the cylinder is called the double-acting cylinder. Double-acting pneumatic actuator can only stay in situ, when loss of gas source is generally not easy to reset. And single-acting actuator switch action only open action is air driven, and close the action spring return. In commonly used more dangerous working conditions, such as transporting combustible gas or flammable liquids, when loss of gas source, and there's an emergency, single-acting pneumatic actuators can automatic reset, reduce the risk to low. In the operation condition of the general situation, however, suggest that we use double-acting pneumatic actuators, higher cost performance. Single acting pneumatic actuator general component is normally open and normally closed. Open normally open type: ventilation, gave up the ghost; Normally closed type: ventilation, gave up the ghost.








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