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Large Diameter Direct Acting Stainless Steel Flange Type Solenoid Valve

COVNA 2W-F direct pull diaphragm type solenoid valve with brass and stainless steel body material, NBR, VITON, EPDM soft seal, working pressure range from 0.0MPa~1.0MPa. Flange connection end, port size range from 1/2 inch~4 inch(DN15~DN100); Working voltage: DC-12V 24VAC-24V . 120V 240V / 60HZ : 110V . 220V / 50HZ; Tolerance:±10%; Material: Body-brass or stainless steel UPVC, Seal-VITON PTFE NBR EPD, Armature Tube- Stainless Steel304, Plunger- Stainless Steel 430F, Stop-ss 403F, Springs-ss 304, Shading Rings-stainless Steel 304

  • Model: 2W-F
  • Size Range: 1/2''~4''
  • Pressure Range: 0.0MPa-1.0 MPa
  • Material: Stainless Steel or brass

Normally Closed and Normally Open Solenoid Valve

The direct pull diaphragm type solenoid valve uses the electromagnetic suction to lift the diaphragm to open and close under the condition of low pressure or no pressure. Therefore, such electromagnetic adjustment is required under the condition of no pressure or low pressure; Diaphragm electromagnetic is widely used in various fields such as pipeline, water treatment, natural gas, electric power, chemical industry, petrochemical industry, oil, paper making, mining, food, municipal administration, mechanical equipment supporting, electronic industry, urban construction, etc。

With diaphragm structure, low requirement for medium cleanliness, the flow coefficient of the valve is 10% higher than that of the common valve. With special seal structure and imported synthetic rubber seal, it can work smoothly without leakage, low noise, medium impact without water hammer, liquid without bucket sound, gas, and can be mixed, To further improve the application scope of solenoid valves, the service life of imported synthetic rubber seals is more than 5 times longer than that of similar products, and it has withstood the long-term market test for 20 years.

solenoid valve parameters

Port Size 1/2″~4” Orifice(mm) 15,20, 25, 32, 40, 50
Port Connection BSPP,BSPT, NPT, Flange Function Normally closed or opened
Pressure 0.00MPa-1.0MPa Voltage DC-12V, 24V, 36V; AC-24V, 120V, 240V/60Hz; 110V, 220V/50Hz
Temperature of media NBR Seal: 0~80℃ 

EPDM Seal: 5~190℃ 

Suitable Media Stem, hot water, civil gas, air oil.
Material Stainless steel or Brass Sealing Material EPDM, VITON,NBR, PTFE
Coils S51B : 30VA ( AC ) , 24W ( DC ) , IP65 , 100 % ED

SDO1B : 28VA ( AC ) 36W ( DC ) , IP65 , 100 % ED

solenoid valve parameters

solenoid coil

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