Place of Origin : Chengdu,China

The EFS is an electric quarter turn spring return actuator which has the purpose to close or open a valve in emergency conditions, when an ESD alarm signal occurs or when motor power supply fails.The EFS actuator consists of four main parts:a spring return mechanism, which move the valve in the foreseen fail-safe condition when requested by an ESD signal or by a power failure. a quarter turn electric actuator which operates the valve during normal working conditions. an electro-magnetic clutc