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Pneumatic Expansion Butterfly Valve

Categories: Globe Valve Sort

Exhibitor Information
Zhejiang Jinghai Pump & Valve Co., Ltd.
Jinghai Pneumatic Expansion Butterfly Valve

Jinghai pneumatic expansion butterfly valve is specially designed for powder and granular working conditions, adopting inflatable expansion dynamic sealing structure. During opening and closing, the inflatable seat retracts to avoid friction between disc and sealing surface. After fully closed, the seat inflates to achieve tight sealing. It is ideal for powder, particle, slurry and dust‑laden gas. The valve adopts wafer‑type connection for easy installation. Custom materials and functional accessories are available according to working conditions. Widely used in building materials, mixing plant, chemical, grain and pneumatic conveying systems.

Product Features

1. Dynamic inflatable sealing. The seat retracts during operation to reduce wear. Inflates upon closing for reliable sealing and wear compensation.

2. Low operating torque, allowing smaller actuator to reduce overall cost, suitable for frequent on‑off cycles.

3. Standard wafer‑type connection. Body, disc and seat materials can be customized for different media.

4. Can be equipped with solenoid valve and position feedback for remote automatic control.

5. Simple structure, replaceable seat, easy maintenance, good resistance to particle erosion.