Bellows globe valves, also known as bellows sealed globe valves, form a metal barrier between the fluid medium and the atmosphere through automatic roll welding, ensuring a zero leakage design of the valve stem.
The interior of the bellows stop valve adopts a bellows structure, and the lower end of the stainless steel bellows is welded to the valve stem to prevent process fluid from corroding the valve stem. The other end is placed between the valve body and the valve cover to form a static seal. Adopting a dual sealing design, if the bellows fails, the valve stem packing will also avoid leakage. The bellows is welded to the valve stem to maintain stable operating performance and avoid valve stem vibration caused by valve plug vibration.
Compared with traditional globe valves, it has the following advantages:
1. The imported corrugated pipe globe valve of VTON from the United States has a long service life, reduces maintenance frequency, and reduces operating costs. The sturdy and durable bellows sealing design ensures zero leakage of the valve stem and provides maintenance free conditions.
2. The valve has a small opening and closing torque, reduces labor intensity, and can drive any form of driving device, facilitating remote control.
3. The appearance is beautiful, and the valve channel has a smooth flow line, reducing the flow resistance coefficient of the valve. It is a high-quality energy-saving product.
4. The external sealing of the valve adopts corrugated pipe sealing and graphite, stainless steel gasket sealing, which is reliable and can be used for a long time without replacing the sealing filler.
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