COVNA Products

COVNA 2W Brass Electric Solenoid Valve – General Purpose

2W General Purpose Brass Electric Solenoid Valve

with low cost. Zero pressure to start. Max. temperature: -10~80℃. Suitable for water, air, gas, etc. Features of 2W solenoid valve include quick strat, compact design, low price, pure copper coil. As a solenoid valve supplier, COVNA is committed to helping you select the right and quality solenoid valve and save your time and cost. Inquiry us to get the best price!

Model

  • Function: Normally Closed / Normally Open
  • Pressure: 0 to 10 bar
  • Voltage: DC-12V, 24V; AC-24V, 120V, 240V/60Hz; 110V, 220V/50Hz
  • Temperature of Media: -10 to 80℃ (14℉ to 176℉)
  • Suitable Media: Water, Air, Oil, Gas, etc
  • Material: Brass

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Features Of 2W Brass Electric Solenoid Valve

● This item is our lowest cost item. If you have a limited budget, we will recommend this item for you.

● Compact design for small equipment for fluid control.

● Suitable for general mediums like water, oil, air, gas, etc

● Available in G and NPT threaded.

● Also available in stainless steel and PVC material for your choice.

Technical Parameters of 2W Brass Electric Solenoid Valve

Port size1/4″, 3/8″, 1/2″, 3/4″, 1″, 1¼”, 1½”, 2″Orifice(mm)8, 10, 15, 20, 25, 32, 40, 50
ConnectionsBSPP, BSPT, NPT, GFunctionNormally Closed / Normally Open
Pressure0 to10 barVoltageDC-12V, 24V; AC-24V, 120V, 240V/60Hz; 110V, 220V/50Hz
Temperature of Media-10 to 80℃ (14℉ to 176℉)Suitable MediaWater, Air, Oil, Gas, etc
MaterialBrassApplicationsWater treatment, automatic machines, etc

 

SizePort SizeOrificeCvMin PressureMax Pressure
AC(40VA)DC(18W)
2W-103/8″104.50.0 MPa0.7 MPa0.7 MPa
2W-151/2″154.50.0 MPa0.7 MPa0.7 MPa
2W-203/4″209.30.0 MPa0.7 MPa0.7 MPa
2W-251″25120.0 MPa0.7 MPa0.7 MPa
AC(50VA)DC(20W)
2W-321 1/4″32240.0 MPa1.0 MPa1.0 MPa
2W-401 1/2″40290.0 MPa1.0 MPa1.0 MPa
2W-502″50480.0 MPa1.0 MPa1.0 MPa

Dimension of 2W Brass Electric Solenoid Valve

Port Size3/8”~2”Orifice(mm)15, 20, 25, 32, 40, 50
Port ThreadBSPP, BSPT, NPT, FLANGEFunctionNormally closed or opened
Pressure0-1.0 MPa (10 bar)VoltageDC-12V, 24V; AC-24V, 120V, 240V/60Hz; 110V, 220V/50Hz
Temperature of media-10~100℃ (14℉ to 212℉)Suitable MediaWater, gas, oil, etc
MaterialBrass, Stainless SteelSealing MaterialNBR, VITON, PTFE, EPDM
CoilS51B,30VA(AC),24W(DC),IP65,100%ED
CoilSD01B,28VA(AC),36W(DC),IP65,100%ED
The actuator on my automated valve operates, but the valve won’t turn. Why?

Most likely the valve stem or actuator coupling is broken.

The electric actuator limit switches or the pneumatic actuator position stops are not correctly adjusted.

Probably because there is no air pressure to the solenoid or dirt has jammed it. Also, debris might be trapped inside the valve. Or, the air pressure is not sufficient to operate the actuator. Remember: measure air pressure at the actuator, not at the compressor.

Maybe. First, be sure that the actuator torque output is sufficient to turn the valve reliably. Second, you will have to fabricate a custom mounting bracket and coupling to connect the actuator to the valve.

The valve will stop somewhere between full open and close. When power is reapplied to the original circuit, the actuator will complete the cycle.

To make the change just remove the actuator from the valve and turn it, or the valve stem, 90 degrees and remount the actuator.

Remove the actuator from the valve and check the valve stem. Most ball valves have stem flats at right angles to the flow when the valve is in the off position. On butterfly valves check the stem flow arrow marking.

Remove the actuator from the valve and check the valve stem. Most ball valves have stem flats at right angles to the flow when the valve is in the off position. On butterfly valves check the stem flow arrow marking.

Check the electric wiring schematic that came with the actuator for the correct hookup. Sometimes a copy is inside the actuator cover. If it is missing, don’t guess about the connections. Call the manufacturer for a schematic.

The actuator is wired incorrectly (check the schematic accompanying the actuator), or the external control switch is not the correct type for the actuator.

Not unless you bought it with an optional speed control.

Actuators and solenoid valves require different types of electrical control switches. SPDT for actuators, SPST for solenoids. Check the actuator wiring schematic for the correct wiring and switch type.

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