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

    5 out of 5 based on 3 reviews | Write a review
    2/2 way solenoid valve, 2-way 2-position (N/C), general purpose for control the flow of air, water and oil, with different port sizes G1/4", G3/8", G1/2", G3/4" to G2", and operating voltages DC 12V, DC 24V or AC 220V available for your applications. Valve body is made of brass and sealing material is NBR, with good medium compatibility, high reliability, long service life and low cost.
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    Delivery date: 6-12 days

    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

    Model 2W025-08 2W040-10 2W160-15 2W200-20 2W250-25 2W350-35 2W400-40 2W500-50
    Valve Type 2 Way 2 Position, Normally Closed
    Media Air, Water, Oil
    Operation Mode Direct-acting Pilot-operated
    Port Diameter (mm) 2.5 4.0 16 20 25 35 40 50
    Flow Rate (Cv) 0.23 0.6 4.8 7.6 12 24 29 48
    Port Size G1/4" 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) 12V DC, 24V DC, 220V AC
    Voltage Tolerance ±10%
    Operating Temperature -5~+85℃ (23~185℉)
    Body Material Brass
    Seal Material NBR
    Coil Power 15VA 20VA 50VA

    2/2-Way NC Solenoid Valve Dimensions

    2-way solenoid valve normally closed dimensions

    2-way normally closed solenoid valve dimension

    Model Dimension
    A (mm) B (mm) C (mm) D (mm) K (inch)
    2W160-15 93 55.5 106.5 67.5 G1/2
    2W200-20 97 55.5 113 73 G3/4
    2W250-25 102.5 72.5 121 94 G1
    2W350-35 134.5 92.5 159 120 G1¼
    2W400-40 137.5 92.5 165 122 G1½
    2W500-50 151.5 123 188 170 G2

    Two-way Solenoid Valve Symbol
    2-way solenoid valve symbolTips: 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.

    Existing reviews of Solenoid Valve, 2 Way, Normally Closed, 12V/24V/220V for air water oil
    This water solenoid valve works well...
    This water solenoid valve works well with 24V DC on an auto water-fill system. The port size G1/2 inch is really what I needed. There is no problem for installation. It doesn't leak for now.
    From: Jamie | Date: 28/05/2018
    Was this review helpful? Yes No (0/0)
    I bought the 12V 1/4 solenoid valve and it works very well.
    I bought the 12V 1/4 solenoid valve and it works very well. Before that, I bought a plastic one that stopped working just for one day. This one is solid and well-built and it has worked perfectly all summer. Worth the money.
    From: Anderson F | Date: 01/11/2018
    Was this review helpful? Yes No (0/0)
    Great solenoid valve
    The solenoid valve I bought is normally closed model and the port size is 1/4". Worked wonderful and was easy to install. Very pleased with this product.
    From: Ravi | Date: 22/11/2018
    Was this review helpful? Yes No (0/0)
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