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Solenoid Valve, 2 Way, Normally Open, 12V/24V/220V for air water oil

Favorable price 2-way 2-position (2/2-way) general solenoid valve, Normally Open (NO), stainless steel body and NBR seal, suitable for air, water and oil, operating voltage 12V DC, 24V DC, 110V AC or 220V AC, various sizes of pipe connection G1/2, 3/4, 1, 1¼, 1½ and 2 inches, fast response time, high reliability and long life time.
SKU: CCHN-VALVE-2WBK
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Delivery date: 6-25 days

Note: This solenoid valve cannot be used for drinking water.

Two-way two-port stainless steel solenoid valves, pilot-operating type, are general purpose for controlling the flow of air, water and oil. The solenoid valve is Normally Open (NO), i.e., the valve is closed when the coil is energized, and open when the coil is de-energized. This valve features high reliability and long service life for the applications such as mechanical, textile, medical, food processing and so on.

Specification

Model 2WBK160-15 2WBK200-20 2WBK250-25 2WBK350-35 2WBK400-40 2WBK500-50
Valve Type 2 Way 2 Position, Normally Open (N/O)
Media Air, Water, Oil
Operation Mode Pilot-operated
Port Diammeter (mm) 16 20 25 35 40 50
Flow Rate (Cv) 4.8 7.6 12 24 29 48
Port Size G1/2" G3/4" G1" G1¼" G1½" G2"
Fluid Viscosity Under 20 CS
Operating Pressure Water, Oil: 0~0.5MPa (0~72psi) Air: 0~0.7MPa (0~101psi)
Max. Pressure Resistance 1.0MPa
Voltage(Optional) 12V DC, 24V DC, 220V AC
Voltage Tolerance ±10%
Operating Temperature -5~+85℃ (23~185℉)
Body Material Stainless Steel 304
Seal Material NBR
Coil Power 20VA

Dimensions
2-Way NO Stainless Steel Solenoid Valve Dimensions

Model Dimension
Port size A (mm) B (mm) C (mm)
2WBK160-15 G1/2" 69 56 125
2WBK200-20 G3/4" 71 56 131
2WBK250-25 G1" 98 76 140
2WBK350-35 G1¼" 116 87 146
2WBK400-40 G1½" 122 94 158
2WBK500-50 G2" 129 95 170

Two-way Solenoid Valve Symbol
2-Way Solenoid Valve Symbol
Tips: Why the solenoid valve doesn’t work after it is energized?

There are some possible reasons for this problem:

  • Whether the power supply of solenoid valve is connected well.
  • Whether the power voltage is within the working range of the solenoid valve.
  • Whether the coil desoldering.
  • The coil is short circuit.
  • Whether the working pressure differential is proper.
  • The fluid temperature is too high.
  • Extraneous matters make the valve blocked.
  • The liquid is too sticky, the use of solenoid valve is too frequent and the service life is up.

Aiming at the above causes, there are some suggestions listed one by one for your reference.

  1. Reconnect the wires and the connector assembly.
  2. Regulate the voltage to the right scope.
  3. Re-welding the coil.
  4. Change a new coil.
  5. Adjust the pressure differential or replace a new solenoid valve if necessary.
  6. Update an appropriate solenoid valve.
  7. Clean out the valve; if the seal is broken, change it.
  8. Change an appropriate solenoid valve.