Dema Solenoid Valve – 474P.3 – Brass Body – 1/2in FPT Inlet/Outlet Ports
– Normally Closed – Diaphragm Valve – Buna-n Seal – Junction Box –
24V/50-60 Hz AC – Pressure Max 150 PSI – Minimum 1 PSI Pressure to
Operate
Dema, 474P.3 Val Sol 1/2 Diaph N/C JB24V
Description
Normally Closed Diaphragm Solenoid Valve
- 24V
- 1/2in
- 150PSI
- Brass body, Buna N seal
- Application: Water, air, noncorrosive and nonexplosive
liquids - Rated 200º F fluid, 120º F ambient
- Repair kit available
- Operation: When energized, the plunger is pulled to the
top plug, thus opening the small “pilot port” in the center
of the diaphragm plate. This releases the pressure on top of
the diaphragm allowing incoming pressure to lift it off the
large center port. When de-energized, the solenoid plunger is
pushed from the top plug by the kick-off spring and closes
the pilot port. Fluid passes through the diaphragm bleed hole
until pressure is equalized on both sides of the diaphragm to
shut off the large port
