linear actuator / pneumatic / spring-return / double-acting

When needed, the quarter turn pneumatic actuator can be installed with a manual emergency handwheel. This can then be integrated either in the spring return or double acting version. This is because it is important to ensure that the pneumatic actuator is removed from the power lines of compressed air before doing any operation using the manual handwheel.

This ensures the manual integrity of the device and the correct functioning of the entire system. The manual emergency handwheel can affect the transmission of the pneumatic actuator's main mechanical transmission. It has torque integrated into the handwheel based on UNI EN 1257-2001 standards. It releases an output torque equal to the nominal torque of its actuator.