Description
1. Overview of Bellows Globe Valve
Bellows globe valves, also known as bellows seal globe valves, feature a dual sealing system combining bellows and packing. This innovative design ensures reliable sealing performance, particularly in applications requiring high sealing reliability for steam, heat transfer oil, and highly toxic or corrosive media.
Key Applications:
- Steam and heat transfer oil systems
- Toxic and corrosive media pipelines
- Industrial, power generation, and natural gas processing facilities
2. Product Features
- Metal bellows provide a durable barrier, ensuring zero leakage from the valve stem.
- Conical valve disc design offers superior sealing performance and extended service life.
- Dual sealing (bellows + packing) prevents leakage even if the bellows fail, meeting international sealing standards.
- Integrated grease fitting allows direct lubrication of the valve stem, nut, and shaft sleeve for smoother operation.
- Ergonomically designed handwheel ensures ease of use, reliability, and longer service life.
- Prevents fluid loss, reducing energy consumption and improving safety.
- Hard alloy welded sealing surface is wear-resistant, corrosion-resistant, and minimizes maintenance costs.
- Valve stem is treated with quenching and surface nitriding for enhanced corrosion and friction resistance.
- Clear and intuitive valve stem position indicators improve operational control.
3. Technical Parameters
- Size: DN15-500mm
- Pressure: PN16-PN160, 150LB-2500LB
- Temperature: -196℃ to 550℃
- Body Materials: Cast steel, stainless steel, forged steel, chromium-molybdenum steel
- Connection Types: Flange, threaded, welded
- Working Media: Flammable, explosive, toxic fluids, high-temperature heat transfer oil, liquid ammonia, and more
