Two-port (2/2-way) Normally Closed brass electric solenoid valves control flow of air, water and oil with DC 12 Volt, DC 24 Volt , AC 220 Volt. The valve is open when the solenoid is energized and it is closed when de-energized. It is widely used in the areas like mechanical, textile, medical, food processing and so on.
2-Way Brass Solenoid Valve Specification
||2 Way 2 Position, Normally Closed
||Air, Water, Oil
|Port Diameter (mm)
|Flow Rate (Cv)
||Under 20 CS
||Water, Oil: 0~0.5MPa (0~72PSI) Air: 0~0.7MPa (0~101PSI)
|Max. Pressure Resistance
||12V DC, 24V DC, 220V AC
2/2-Way NC Solenoid Valve Dimensions
Two-way Solenoid Valve Symbol
Tips: Direct-acting vs pilot-operated solenoid valve
The ATO-2W series solenoid valves have two valve types, direct-acting with port size G1/4”, 3/8” and pilot-operated with port size G1/2, 3/4 inch etc. Are there any differences between them?
1. The direct-acting solenoid valve is usually used in small caliber and low pressure environment while the pilot-operated solenoid valve is suitable for large caliber and high pressure occasion. Generally, the flow rate of pilot-operated solenoid valves is larger than that of direct-acting solenoid valves.
2. For direct-acting solenoid valve, it will be able to start in zero pressure, without need of the minimum pressure of the medium. However, the pilot-operated solenoid valve needs a minimum pressure when starting.
3. In terms of the start-up speed, the direct-acting solenoid valve is faster compared with the pilot-operated one.
4. The power consumption of direct-acting solenoid valve is usually ranging from 5W to 20W. But the pilot-operated solenoid valve has lower power consumption.