WANVALVE Pneumatic Stainless Steel Wafer Butterfly Valve WP12-W-S
The WANVALVE Pneumatic Stainless Steel Wafer Butterfly Valve WP12-W-S is designed for precise flow regulation in industrial environments requiring durability and corrosion resistance. Its stainless steel body ensures robust performance and long service life. The wafer-style configuration simplifies installation between flanges, while the pneumatic actuator (single or double acting) enables responsive operation. The chromium oxide surface layer provides protection against chemical corrosion and oxidation, even in high-temperature and high-pressure applications.
Technical Highlights & Advantages
- Advanced Body Materials – Built from duplex stainless steel for strength and flexibility in harsh environments.
- Reliable Actuation – Smooth control with a pneumatic actuator, available in double acting configurations.
- Corrosion Protection – Chromium oxide surface film shields the valve from aggressive media.
- Mechanical Integrity – Durable construction ensures stability and long service life.
- Easy Maintenance – Polished internal surfaces minimize buildup, suitable for sanitary and industrial uses.
- Compact Design – Wafer-style body allows space-saving installation.
Technical Parameters
| Parameter | Specification |
|---|---|
| Size | DN50 to DN600 (2” to 24”) |
| Pressure | 10bar to 16bar (145psi to 232psi) |
| Temperature | -5 to 180℃ (23 to 356℉) |
| Connection | Wafer (ANSI/JIS/DIN/GB) |
| Body Materials | SS304/316/316L |
| Disc Materials | SS/Cast Iron |
| Sealing Materials | PTFE/EPDM |
| Actuation | Single Acting or Double Acting |
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For small-diameter valves or valves with pressure requirements, in order to enhance the stability and sealing of the valve disc:


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For large-diameter valves or valves that are operated frequently, in order to reduce friction and wear:


Performance Comparison
| Feature | WANVALVE WP12-W-S | Conventional Butterfly Valve |
|---|---|---|
| Body Material | Duplex / Austenitic Stainless Steel | Cast Iron / Carbon Steel |
| Corrosion Resistance | Excellent (Chromium Oxide Layer) | Moderate |
| Mechanical Strength | High | Medium |
| Cleaning & Maintenance | Easy to Clean | Frequent Maintenance |
| Operating Temperature | Up to 180°C | Up to 120°C |
| Actuation Options | Pneumatic / Electric | Manual Only |
Application Scenarios of Pneumatic Wafer Butterfly Valves
The valve performs reliably across diverse industries requiring durability and automation:
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Chemical & Petrochemical – Excellent resistance to corrosion for aggressive chemical media.
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Food & Beverage – Easy to clean body materials suitable for sanitary environments.
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Water & Wastewater Treatment – High performance under high temperatures and abrasive fluids.
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HVAC & Building Systems – Wafer style design for compact and efficient installation.
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Pharmaceutical Manufacturing – Compatible with austenitic stainless steel standards for sterile conditions.
For professional insights into types of steel, corrosion protection, and flow control, refer to Metoree.com and FluidHandlingPro.com.
Maintenance & Longevity
The wafer style design and polished surfaces make routine maintenance simple. With duplex stainless steel construction and strong mechanical properties, this valve offers extended service life while reducing downtime and maintenance costs.
Industry Standards & Certifications
Manufactured to meet ANSI, JIS, DIN, and GB standards, the WP12-W-S ensures reliable performance. Its pneumatic actuator is compatible with automated control systems, and the use of certified types of stainless steel guarantees stability under high temperatures and corrosive conditions.
Customization & Optional Features
Optional configurations include electric actuation or double acting pneumatic systems, as well as ferritic stainless steels for specialized applications. The wafer style body adapts easily to diverse industrial environments and automation requirements.
Case Studies / Real-World Performance
In chemical plants, water treatment facilities, and food processing systems, the WP12-W-S demonstrates reliable resistance to corrosion and long-term stability. For more detailed industrial insights, visit Metoree.com or FluidHandlingPro.com.
Conclusion
The WANVALVE WP12-W-S integrates duplex high-grade steel durability, chromium oxide protection, and precise pneumatic actuation for reliable performance. Its wafer structure, ease of cleaning, and strong mechanical properties make it ideal for modern automated flow control systems.





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