Rotary actuator with SRFA-O emergency function for two and three way Belimo ball valves. It can be used for both open / closed versions and control versions of ball valves.

Drive version NO - no voltage open .

The actuator is only compatible with Belimo ball valves . The actuator cannot be used on taps from other manufacturers!

Properties

• The drive carries the ball valve while tensioning the return spring to the operating position. Interruption of the supply voltage turns the ball valve back to the emergency position due to the energy of the spring.
• Easy direct mounting on a ball valve with one screw. No additional mounting adapter is required. The mounting position in relation to the ball valve is selectable in steps of 90 °.
• The ball valve can be adjusted and fixed in any position with the hand lever. Unlocking is performed manually or automatically by applying the supply voltage.
• The drive is protected against overload, does not need any end stops and automatically remains at the stop.