De-clutchable wormgear operator: Pneumatic component

Description:
The de-clutchable wormgear operator offers simple and reliable manual positioning of valves, dampers and other quarter-turn devices when over-riding existing pneumatic or hydraulic rotary actuators. All units are suitable for both indoor and outdoor. The modular design is to provide the most efficient and effective solution to a full range of manual overiding requirements.

Operation:
To engage manual operation, first pull out the lock handle and then rotate the clutch lever in anti-clockwise direction until engagement takes place. To return to automatic mode, first pull out the lock handle and then rotate the clutch lever in clockwise direction until engagement takes place.