波纹管截止阀

Bellows type globe valve

Bellows stop valve is also called bellows seal stop valve. Through automatic roll welding, a metal barrier is formed between fluid medium and atmosphere to ensure zero leakage of valve stem.
The bellows stop valve adopts bellows structure inside. The lower end of stainless steel bellows is welded on the valve stem to prevent the process fluid from eroding the valve stem. The other end is placed between the valve body and the valve cover to form a static seal. If the bellows fails, the valve stem packing will also avoid leakage. The bellows are welded to the valve stem to maintain stable operation performance and avoid the vibration of the valve stem caused by the valve plug vibration. Most suitable for steam, flammable, explosive, heat transfer oil, high purity, toxic medium pipeline.

• Size range:DN15~DN400
• Pressure range:PN16~PN40
• Working temperature:-20℃-350℃
• Connection type: flange
• Material: cast iron, ductile iron, carbon steel, stainless steel
• Operation mode: handwheel, gearbox operation, actuator operation