The 2W 2-way Pneumatic Solenoid Valve normally closed solenoid valve features a direct-acting design, built with a precision-machined valve body, high-performance coil, stainless steel plunger, and reliable sealing components. This series includes two flow types: a small-flow model for standard systems and a large-flow model for high-capacity fluid control.
The 2W Fluid Control valve is available in brass & stainless steel materials. Brass models are ideal for general water and air applications, while stainless steel versions offer enhanced corrosion resistance for more demanding industrial environments.
With its wide application range and high operational safety, the 2W valve is commonly used for outdoor liquid control, flow regulation with timers or control instruments, and general water-air fluid systems, providing stable and convenient performance across various pneumatic and fluid control setups.
Suitable for controlling media such as liquids, gases, and light oils (≤20CST), this valve features a direct-acting structure with zero-pressure opening, high flow capacity, and excellent reliability. The valve body is made of brass (hot forged). This series offers multiple types, allowing you to select the appropriate one based on control requirements.
When designing the control scheme, prefer normally closed (NC) type whenever possible. If the solenoid valve needs to remain open for a longer duration and close for a shorter one, opt for normally open (NO) type.
If the fluid contains impurities, a filter (with a mesh size of 260) should be installed before the valve.
The marked direction on the valve body must align with the medium flow direction
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① Small Orifice Size – 2W Series Model Code (1.2mm–4mm)
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Ordering code |
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2W |
025 |
- |
08 |
AC110V |
E |
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Model |
Orifice size(mm) |
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Port size |
Voltage |
Seal Material |
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2W: 2-position 2-way, direct acting |
012:1.2mm |
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M4:M4X0.7 |
DC12 |
Blank:NBR |
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2WH: 2-position 2-way, direct acting (high-pressure type) |
020:2mm |
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06:1/8 |
DC24 |
E:EPDM(for steam) |
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2S: Stainless steel 2-position 2-way, direct acting |
025:2.5mm |
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08:1/4 |
AC24V 50HZ/60HZ |
V:VITION(for high temterature&vacuum) |
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2SH: Stainless steel 2-position 2-way, direct acting (high-pressure type) |
040:4mm |
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10:3/8 |
AC110V 50HZ/60HZ |
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AC220V 50HZ/60HZ |
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AC380V 50HZ/60HZ |
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② Large Orifice Size – 2W Series Model Code (16mm–50mm)
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Ordering code |
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2W |
025 |
- |
08 |
AC110V |
E |
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Model |
Orifice size(mm) |
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Port size |
Voltage |
Seal Material |
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2W: 2-position 2-way, direct acting |
160:16mm |
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10:3/8 |
DC12 |
Blank:NBR |
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2S: Stainless steel 2-position 2-way, direct acting |
200:20mm |
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15:1/2 |
DC24 |
V:VITION(for high temterature&vacuum) |
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250:25mm |
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20:3/4 |
AC24V 50HZ/60HZ |
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350:35mm |
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25:1’’ |
AC110V 50HZ/60HZ |
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400:40mm |
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35:1-1/4’’ |
AC220V 50HZ/60HZ |
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500:50mm |
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40:1-1.2’’ |
AC380V 50HZ/60HZ |
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50:2’’ |
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Model |
2W025-06 |
2W025-08 |
2W040-10 |
2WH012-06 |
2WH012-08 |
2WH020-10 |
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Alternate Model |
2S025-06 |
2S025-08 |
2S040-16 |
2SH012-06 |
2SH012-08 |
2SH020-10 |
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Media |
Air, Water, Oil, Gas |
Air, Water, Oil |
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Operation Type |
Direct Acting |
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Structure |
Normally Closed |
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Orifice Diameter (Φmm) |
2.5mm |
4mm |
12mm |
2mm |
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CV Value |
0.23 |
0.50 |
0.05 |
0.15 |
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Port Size |
1/8" |
1/4" |
3/8" |
1/8" |
1/4" |
3/8" |
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Fluid Viscosity |
≤20CST |
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Operating Pressure Range |
0~0.7MPa |
0~0.20MPa |
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Proof Pressure |
1.0MPa |
3.5MPa |
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Operating Temperature |
-5~80℃ |
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Voltage Range |
±10% |
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Body Material |
2W Brass 2S Stainless Steel |
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Seal Material |
NBP, EPDM or VITON |
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Model |
2W160-10 |
2W160-15 |
2W200-20 |
2W250-25 |
2W350-35 |
2W400-40 |
2W500-50 |
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Alternate Model |
2S160-10 |
2S160-15 |
2S200-20 |
2S250-25 |
2S350-35 |
2S400-40 |
2S500-50 |
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Media |
Air, Water, Oil, Gas |
Air, Water, Oil |
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Operation Type |
Direct Acting |
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Structure |
Normally Closed |
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Orifice Diameter (Φmm) |
16mm |
20mm |
25mm |
35mm |
40mm |
50mm |
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CV Value |
4.8 |
7.6 |
12 |
24 |
29 |
48 |
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Port Size |
3/8" |
1/2" |
3/4" |
1" |
1 1/4" |
1 1/2" |
2" |
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Fluid Viscosity |
≤20CST |
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Operating Pressure Range |
Air 0~0.7MPa; Water 0~0.5MPa; Oil 0~0.5MPa |
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Proof Pressure |
1.0MPa |
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Operating Temperature |
-5~80℃ |
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Voltage Range |
±10% |
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Body Material |
2W Brass 2S Stainless Steel |
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Seal Material |
NBP, EPDM or VITON |
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What is 2W 2-way Pneumatic Solenoid Valve used for and what is its function?
Can be used with a timer for scheduled water on/off. It can also automatically water plants, etc.
Can it(2W valve) be used for garden drip irrigation?
Yes, it can be used.
Can 2W solenoid valve be installed horizontally and vertically?
Must be installed horizontally.
Will there be back-flow when 2W valve 2 way is closed and reverse pressure exists?
There will be no back-flow.
How to install the 2W 2-way Pneumatic Solenoid Valve?
Install horizontally. Connect the inlet and outlet according to the marked flow direction (→ flow direction).
Address
Zhengtai Road, Xinguang Industrial Zone, Liushi, Yueqing, Wenzhou, Zhejiang, China.
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