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DEMA O476 Series Brass Diaphragm 3/4" 150 PSI Normally Open Solenoid Valve

DEMA O476 Series diaphragm solenoid valves are available for 3/4” pipe and are constructed of brass and have stainless steel seats.  When not 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 energized, the solenoid plunger is pulled from the top plug by the magnetic field 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.

The O476P series features Buna seals.

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