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The three most common isolation valves each have strengths — the choice depends on bore, pressure and cycle frequency.
Comparison table
| Item | Butterfly | Gate | Ball |
|---|---|---|---|
| Size range | DN40–DN3000 | DN50–DN1200 | DN15–DN600 |
| Speed | Fast (90°) | Slow (multi-turn) | Fast (90°) |
| Flow resistance | Medium | Low | Low (full bore) |
| Typical use | Large water/HVAC | Clean media isolation | Quick action/throttling |
Selection notes
- Large bore, frequent operation → butterfly (light, fast)
- Full open/close, minimal resistance → gate
- Quick, bi-directional, high cycle → ball
Note
For steam and high-temperature duty prefer metal-seated or triple-eccentric butterfly — soft seats age.Need a full valve list? Contact us and we configure item by item.