B200/B210/B220 series high performance double eccentric butterfly valve disc and seal ring with a unique eccentric structure, offset stem,eccentric butterfly disc, valve seat using lip seal to compensate for temperature changes and pressure changes, with compact structure, high flow capacity, reliable and durable sealing, good cutting performance and other characteristics, combining regulating with cutting off two functions.
| Size: | DN50~DN600 |
| Pressure: | PN10~40,150Lb~300Lb |
| Connection type: | Wafer type, lug type,flange |
| Body material: | WCB,CF8,CF8M,etc. |
| Seat material : | PTFE,RPTFE,PPL |
| Working temperature: | -29~250℃ |

