Genral purpose Two-way two-position Normally Open (NO) brass electric solenoid valves are used to release and shut off the flow of air, water and oil with power supply of 24V DC or 110V AC, 220V AC. The solenoid valve is closed when the solenoid is energized; the valve is open when the solenoid is de-energized. It is widely used in the areas like mechanical, textile, medical, food processing and so on.
Specification
Model | 2WK160-10 | 2WK160-15 | 2WK200-20 | 2WK250-25 | 2WK350-35 | 2WK400-40 | 2WK500-50 |
Valve Type | 2 Way 2 Position, Normally Open |
Media | Water, Oil, Air |
Operation Mode | Pilot-operated |
Port Diameter (mm) | 16 | 16 | 20 | 25 | 35 | 40 | 50 |
Flow Rate (Cv) | 4.8 | 4.8 | 7.6 | 12 | 24 | 29 | 48 |
Port Size | G3/8" | 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) | 24V DC, 110V AC, 220V AC |
Voltage Tolerance | ±10% |
Operating Temperature | -5~+85℃ (23~185℉) |
Body Material | Brass |
Seal Material | NBR |
Coil Power | 20VA |
Dimensions

Model | Dimension |
Port size (inch) | A (mm) | B (mm) | C (mm) |
2WK160-15 | G1/2" | 67.5 | 55.5 | 124.5 |
2WK200-20 | G3/4" | 73 | 55.5 | 130 |
2WK250-25 | G1" | 94 | 72.5 | 136.5 |
2WK350-35 | G1¼" | 120 | 92.5 | 151.5 |
2WK400-40 | G1½" | 122 | 92.5 | 157.5 |
2WK500-50 | G2" | 129 | 95 | 170 |
Two-way Solenoid Valve Symbol

5 Tips for Solenoid Valve Maintenance
- Regular inspection and maintenance, once or twice a year, is the best way to ensure the solenoid valve reliable work and long service life.
- When the solenoid valve is put into operation after the installation or after a long time stop, it needs to inject the medium for several times for test runs. The solenoid valve cannot be placed into service until it works normally.
- Before the maintenance, the power supply of solenoid valve must be cut off and the pressure of the medium should be discharged.
- The coil components should not be disassembled.
- All parts of the solenoid valve should be put in order when the valve is disassembled for cleaning. Thus, it is able to assemble the parts in order after cleaning.
2/2-way N/O solenoid valve, 2-port 2-position Normally Open, pilot-operated type, brass body and NBR seal, port sizes ranging from G1/2", G3/4" to G2", power supply DC 24 Volt and AC 110, 220 Volt available, general purpose solenoid valve safe and fast switching of air, water and oil, favorable price and high reliability.