Spring return type Pneumatic Actuator
GMK spring return actuator has one side of the piston supplied with air or liquid, while the other side of the actuator is driven by a spring to open and shut the valve. The fluid or air enters the piston from one side. To open and close the valve, a spring works against the force of the air or liquid passing through it. The design of a spring return type pneumatic actuator works very well because it can accommodate the one-sided torque load that is present during the activation stroke. In addition, when a quick shutdown is necessary for safety, a spring return is the optimal choice because of its simpler design and greater reliability. It is because a rapid shutdown is essential for safety.