Product details

This Sunvic SZ2301 two port universal spring return actuator works on the principle of a motor being energised when the actuator holds the valve open. As the actuator rotates, a spring inside is wound up and the motor stalls out. When power is removed, energy in the coiled spring is released, closing the valve and stopping the actuator.

Product features

Normally closed

4 wire

Spring return action

Manual lever for filling

Actuator replaceable without draining system

Frequency 50Hz