​Double Offset Butterfly Valve

​Design Features
1.ISO 5211 top flange
2.Low emission packing
3.Bi-directional sealing
4.Less seat wear
5.Low torque
6.Self-driven machinery sealing structure

Product Range
Size/Rating: NPS 2~40”（DN50~DN1000）/CLASS 150~600LB（PN6~100）
Body Materials: Carbon Steel, Stainless Steel, Duplex Steel
Seat Materials: NBR, EPDM, VITON, PTFE , RPTFE
End connection: Wafer, Lug, Double Flange, Weld

Design Standards
Basic Design: API 609,ASME B16.34
Structure Length: API 609
End Connection: ASME B16.5, ASME B16.47,EN 1092-1

Test & Inspection: API598,EN12266