Bellows-type globe valves are primarily used in applications where leakage prevention is critical, especially when dealing with hazardous or corrosive fluids. The bellows, a flexible, metallic expansion joint, provides a reliable seal between the valve body and the valve stem. This prevents leakage and ensures the safety of personnel and the environment.
Here are some key reasons to choose a bellows-type globe valve over a standard globe valve:
- Superior leakage prevention: The bellows provides a tight seal, preventing leakage even under high pressure and temperature conditions.
- Suitable for hazardous fluids: The bellows can safely contain hazardous or corrosive fluids, minimizing the risk of spills and contamination.
- Reliable performance: Bellows-type globe valves are known for their durability and reliability, making them suitable for demanding applications.
- Reduced maintenance: The bellows design eliminates the need for packing or gaskets, reducing maintenance costs and downtime.
Design Standards: ASME B16.34, API 600, API 598, API 602, ISO 15848Class A
Sour Service requirements (Per request) : NACE MR-0175 NACE MR-0103
Connection Types: BW to ASME B16.25, Flanged (RF, FF, RTJ) to ASME B16.5, Socket weld
Pressure Rating: CL150 to CL600
Available Materials: Carbon Steel, Chrome Nickel Steel, Stainless Steel, Forge and Cast
A351 GR CF8M, A351 GR CF8, A216 GR WCB, A217 GR WC6, A217 GR WC9, A352 GR LCC, A352 GR LCB
A105, A182 GR F 11 CL 2, A182 GR F 22, A182 GR F304, A182 GR F 316
Trim 8 (Stellite/13 % chrome steel) for Class 150/300/600, Trim 5 (Stellite/Stellite) for Class 600, with bolted bonnet, outside screw and yoke, graphite gland packing, stainless steel/graphite gaskets. Bellow Materials : SS316 Ti, SS321 , Inconel
Size Range: NPS 1/2 to NSP 12
Operator: Handwheel Or Gear operated
| Pressure Class | Range Range | Operator |
| CL 150 | NPS 8 and larger | Gear operated |
| CL 300 | NPS 4 and larger | Gear operated |
| CL 600 | NPS 4 and larger | Gear operated |
