Dwyer Instruments 475-1-FM Manometer 318172-701 the integrated spring return actuator
Yard notes & kiln story
Description
Dwyer Instruments 475 1 FM Manometer 318172 701 the integrated spring return actuator the integrated spring return actuator ensures a fail safe position during power loss A normally closed (N C) valve like the 8210G054 stays shut to block flow until electrical power is applied to the coil