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Normally Closed Mini Diaphragm Solenoid Valves

Mini diaphragm solenoid valves are available for 1/4-1/2” pipes, have orifices from 1/4-3/8”, and are constructed of brass, Celcon, polypropylene, or stainless steel. Some carry NSF and UL listings to fit a wide variety of applications. 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.

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Coil Options
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Models
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  • Application: water, air, light oil, noncorrosive and non-explosive liquids.
  • Brass, Celcon, polypropylene or stainless steel construction
  • Available with EPDM, Viton or Buna N diaphragms
  • Rated for 180°F/82°C fluid and 120°F/49°C ambient.
  • 60 mesh stainless steel filter on series 442 and 443 valves
  • 2.38 or 1.06 gpm flow disc available on 443 valve
  • CV flow factor varies by model (0.5-2.0)
Model No. Pressure Differential Body Material Pipe Size N.P.T CV Flow Factor # GPM @ 60 psi (cv # x √ psi)
min/psi max/psi
442P 3 125 Brass 1/4″ 1 7.75
443P 3 125 Brass 3/8″ 1 7.75
P442 3 125 Celcon 1/4″ 1 7.75
P443 3 125 Celcon 3/8″ 1 7.75
PP442 3 125 PolyPro 1/4″ 1 7.75
PP443 3 125 PolyPro 3/8″ 1 7.75
P462 3 125 Celcon 1/4″ 1 7.75
P463 3 125 Celcon 3/8″ 1 7.75
463PS 3 150 Stainless Steel 3/8″ 2 15.49
464PS 3 150 Stainless Steel 1/2″ 2 15.49

* Shown above are the most common configurations.  Many additional configurations are readily available, contact us at [email protected] or speak with your DEMA sales representative for more information.

Coil Options

Coil Options

    • DEMA solenoid valves are available in many AC and DC voltage ratings and wiring options include a junction box, spade, conduit and din with voltage options of 12VDC, 24VDC, and 24, 120, 208, and 240VAC 50/60 cycle on most models.
Product
Normally Closed Mini Diaphragm Solenoid Valves
Model No.
All
Resource No. / Description
Product
Normally Closed Mini Diaphragm Solenoid Valves
Model No.
442P-443P
Resource No. / Description
Product
Normally Closed Mini Diaphragm Solenoid Valves
Model No.
463PS-464PS
Resource No. / Description
Product
Normally Closed Mini Diaphragm Solenoid Valves
Model No.
P442-P443
Resource No. / Description
Product
Normally Closed Mini Diaphragm Solenoid Valves
Model No.
P462-P463
Resource No. / Description
Product
Normally Closed Mini Diaphragm Solenoid Valves
Model No.
PP442-PP443
Resource No. / Description
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