G4 Direct Drive Type Pneumatic Solenoid Valve Featuring Brass Body NBR Seal Material Optimized For Industrial Fluid Control
Product Description:
The 2W Series, which includes the 2W UD and 2W UW sub-series, is a high-performance direct-acting solenoid valve designed for 2/2-way operation. It offers reliable on/off control across a variety of media such as water, air, oil, gas, and fuel. The UD sub-series supports standard port sizes ranging from G3/8" up to G1-1/4", while the UW sub-series is designed for larger ports, covering G1-1/4" to G2", making it ideal for high-flow applications.
Constructed with versatility in mind, the valve utilizes a direct-acting diaphragm mechanism that enables it to function starting from zero pressure (0 bar). This feature removes the necessity for a minimum differential pressure, ensuring the valve can respond immediately and operate reliably even under low-pressure conditions or in gravity-fed systems.
The 2W Series is available in both Normally Closed (NC) and Normally Open (NO) configurations, allowing customization to suit diverse system requirements. The valve body materials include forged brass for the 2W model and stainless steel for the 2S variant. Seal options are also versatile, featuring NBR as the standard, with EPDM and FKM (Viton) available to handle different media types and temperature ranges.
Moreover, the series supports a range of standard voltages such as DC 24V, AC 110V, AC 220V, and AC 380V. Custom voltage options can also be provided upon request, catering to specialized electrical needs.
Features:
The direct-acting design allows the device to operate reliably starting from 0 bar pressure. This feature makes it ideal for use in low-pressure and gravity-fed systems where maintaining functionality at minimal pressure is crucial.
The product is offered with orifice sizes ranging from 16 mm up to 50 mm within the UW series. These sizes correspond to flow coefficients (Cv) between 4.8 and 48, ensuring optimal and efficient performance across a variety of system requirements.
Constructed using either forged brass (model 2W) or precision-cast stainless steel (model 2S), the device boasts excellent corrosion resistance and extended service life, making it suitable for demanding environments.
The standard sealing material is NBR, suitable for temperatures ranging from -5°C to +80°C. Additionally, EPDM and FKM (Viton) seals are available to accommodate higher temperature conditions and enhanced chemical compatibility.
This device is available in both Normally Closed (NC) and Normally Open (NO) configurations, allowing it to meet diverse operational needs.
Compatibility includes a wide range of AC and DC voltages such as DC24V, AC110V, AC220V, and AC380V, all with a tolerance of ±10%, offering flexibility for various electrical setups.
Threaded connection sizes extend from G3/8" to G2", making the device adaptable to many piping systems of differing dimensions.
Suitable for use with different media types including air, water, oil with a viscosity up to 20 CST, as well as various gases and fuels.
Designed to operate reliably under media temperatures ranging from -5°C to +80°C, ensuring consistent performance in diverse environments.
Featuring a small footprint combined with sturdy construction, the device is easy to install and delivers a long operational lifespan.
Special voltage options and customized specifications can be accommodated upon request, offering tailored solutions directly from the factory.
Technical Parameters:
| Motion Pattern | Direct Drive Type |
| Medium | Air, Water, Oil, Gas |
| Body Material | Brass |
| Valve Type | Normal Close Type; Normal Open Type |
| Seal Material | NBR, EPDM Or VITON |
| Protection Class | IP65 |
Applications:
The versatile 2W Series offers excellent suitability for a broad spectrum of on/off control applications across various industries.
In the field of water treatment and management, this series is ideal for use in irrigation systems, water supply regulation, wastewater treatment, and precise dosing equipment.
When it comes to industrial automation, the 2W Series efficiently controls air, water, oil, and gas within pneumatic systems, production lines, and various process control environments.
The series also finds extensive application in HVAC and refrigeration, managing heating, ventilation, air conditioning systems, as well as cooling circuits with reliability and precision.
For agricultural and environmental uses, it supports precision irrigation, spraying systems, and equipment focused on environmental protection.
General fluid control tasks such as shutting off, draining, and regulating the flow of water, air, gas, and light oils with viscosities up to 20 CST are well within the capabilities of the 2W Series.
Additionally, it effectively manages fuel and gas flow in combustion systems and burner-related applications, ensuring optimal performance.
In industrial machinery, this series provides reliable on/off fluid control for packaging machines, compressors, and hydraulic systems.
Lastly, the 2W Series is perfectly suited for vacuum and low-pressure systems, thanks to its zero-pressure start functionality, enhancing its versatility and range of application.
Support and Services:
Our Pneumatic Solenoid Valve product is designed for reliable and efficient operation in various industrial applications. We provide comprehensive technical support to ensure optimal performance and longevity of your valve system.
Technical support includes assistance with installation, troubleshooting, maintenance, and system integration. Our expert team is available to guide you through the correct setup procedures and help resolve any operational issues.
We offer detailed product documentation, including user manuals, wiring diagrams, and specification sheets, to assist you in understanding the product features and technical requirements.
Regular maintenance services are recommended to keep the pneumatic solenoid valve functioning at peak efficiency. This includes periodic inspection, cleaning, and replacement of worn components.
For customized solutions, our engineering support team can collaborate with you to tailor the pneumatic solenoid valve specifications to meet your unique application needs.
We are committed to providing prompt and effective support to minimize downtime and enhance the performance of your pneumatic systems.
Packing and Shipping:
Product Packaging:
The Pneumatic Solenoid Valve is carefully packaged to ensure safe delivery and optimal protection during transit. Each valve is individually wrapped in anti-static foam or bubble wrap to prevent damage from shocks and vibrations. The wrapped valve is then placed inside a sturdy, corrugated cardboard box with additional cushioning materials such as foam inserts or air pillows to minimize movement within the box. The packaging is labeled clearly with product details, handling instructions, and safety warnings to ensure proper care during shipping and storage.
Shipping:
Our Pneumatic Solenoid Valves are shipped using reliable courier services that provide tracking and timely delivery. We offer multiple shipping options including standard, expedited, and express delivery to meet customer requirements. Each shipment is securely sealed and labeled with all necessary documentation, including a packing list and invoice. For international orders, all customs paperwork is accurately completed to facilitate smooth clearance. We recommend inspecting the package upon receipt and reporting any damage immediately to ensure prompt resolution.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.



