Quarter Turn Pneumatic Actuator

Omal Quarter Turn Pneumatic Actuator, available in Double Acting or Spring Return, if required, can be equipped with a manual emergency hand wheel. For the proper functioning of the system and for the mechanical integrity of the device, it is essential to ensure that the pneumatic actuator is disconnected from the lines of compressed air before performing any operation using the manual emergency hand wheel. The manual emergency hand wheel acts on the primary mechanical transmission of the pneumatic actuator and with torques applied to the hand wheel, according to UNI EN 12570-2001 standards, the output torque is of equal value of the nominal torque of the actuator.