Quick answer: a globe valve regulates flow with a disc that moves towards or away from a seat, so flow can be adjusted precisely and repeatedly. The flow path changes direction inside the body, which creates higher pressure drop than a gate valve — that is the intended trade-off for control.
Globe valve types
- Straight-through, angle and Y-pattern body designs
- Plug type and composition disc designs
- Bolted bonnet and pressure-seal bonnet construction
- Plain, needle and regulating trims
Where globe valves fit best
- Steam headers, condensate and tracing lines
- Bypass lines around control valves and pumps
- Chemical dosing and sampling lines
- Cooling water regulation and balancing duty
- Frequent open-close operation where a gate valve would wear out
Selection data we need
| Item | Why it matters |
|---|---|
| Medium and temperature | Decides body and trim material, and the gasket and packing |
| Pressure class | Sets wall thickness and end connection rating |
| Flow regulation range | Decides trim type and whether a regulating plug is needed |
| Operating frequency | Frequent operation favours globe valves over gate valves |
| End connection | Flanged, butt-weld or socket-weld to match the line |
Testing and documentation
- Shell and seat leakage tests before shipment
- Backseat test where a backseat design is supplied
- Material certificate and test record with the shipment
- Third-party inspection available on request
待补内容位：待补：可生产口径与压力等级上限、设计标准（API 623 / BS 1873 / ASME B16.34 等以实际为准）、波纹管密封截止阀是否可做，以及各材质的交期。