WANVALVE WP11-3PS-W Pneumatic 3-Piece Welded Ball Valve | Stainless Steel SS304/316L
Introduction
The WANVALVE WP11-3PS-W pneumatic 3-piece welded ball valve is a high-performance solution for automated fluid control systems. Designed for durability and accuracy, this valve integrates advanced pneumatic actuation with a robust stainless steel body, ensuring dependable operation even under variable air pressure conditions. As one of WANVALVE’s most reliable pneumatic actuated ball valves, it provides precise flow control, low torque operation, and long service life, making it ideal for industrial automation, chemical processing, and water treatment applications. Learn more about pneumatic valve technologies at Valve-Automatic.com.
Durable Stainless Steel Construction
Crafted from high-grade stainless steel SS304, SS316, or SS316L, the WP11-3PS-W offers exceptional corrosion and oxidation resistance. The socket weld design ensures a permanent, leak-free joint, suitable for systems requiring high integrity under pressure. The 3-piece configuration allows easy disassembly and maintenance without disturbing connected pipelines. With its full port design, this welded ball valve ensures unrestricted flow, minimal pressure drop, and improved energy efficiency. Its sturdy structure provides extended service life even in aggressive or high-temperature media.
Compared with carbon steel or brass valves, the stainless steel construction offers superior resistance to oxidation, chemical erosion, and thermal stress, ensuring longer service life in harsh process conditions.
Reliable Pneumatic Actuation
This pneumatic actuated ball valve uses compressed air as the driving force to achieve smooth, efficient actuation. Available in both single and double acting versions, it provides consistent torque output and stable valve movement across varying pressure conditions. The pneumatic system ensures rapid opening and closing, reducing operational downtime while improving process safety and control accuracy. The WP11-3PS-W is an ideal choice for applications demanding automation, precision, and reliability.
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Performance and Applications
Built for versatility, this 3-piece ball valve performs reliably under pressures up to 64bar (928psi) and temperatures from -5°C to 180°C (23°F to 356°F). Its socket weld ends make it ideal for installations where space is limited or where vibration resistance is critical. This pneumatic actuated ball valve can be used in a wide range of applications, including chemical processing, food production, water treatment, and plant engineering. Thanks to its durable construction and efficient air-powered actuation, it offers stable performance and long service life across continuous operation cycles.
Commonly used in industries such as petrochemical, food processing, pharmaceutical, and clean water systems, the WP11-3PS-W maintains steady operation even under fluctuating air pressure and high-cycle conditions. Its precise shutoff performance ensures safety and efficiency in continuous production environments.
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Technical Parameters
| Parameter | Specification |
|---|---|
| Size | DN08 to DN100 (1/4” to 4”) |
| Pressure | 10bar to 64bar (145psi to 928psi) |
| Temperature | -5 to 180℃ (23 to 356℉) |
| Connection | Socket Weld (Welded Ends) |
| Body Materials | SS304 / SS316 / SS316L |
| Actuation | Single Acting or Double Acting |

Conclusion
The WANVALVE WP11-3PS-W pneumatic 3-piece welded ball valve offers superior control, strength, and reliability in demanding industrial environments. Its stainless steel body, full port flow path, and pneumatic actuation system ensure high efficiency and precision under varying air pressure conditions.
With a long service life, excellent sealing performance, and compatibility with automated systems, this valve is engineered to deliver consistent results in a wide range of applications. Combining quality craftsmanship with innovative design, WANVALVE provides dependable flow control solutions for modern automation and processing industries.





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