Double Offset Butterfly Valve Double Flanged 12 inch Ductile Iron Rubber Seat

Details
Body:Ductile Iron   

Disc:Ductile Iron or SS304/316

Seat:NBR , EPDM

Standards
Design and Manufacture: API609,ASME B16.34
Face to Face : API 609,ISO 5752
Flanged Ends: ASME B16.5/B16.47
Test and Inspection:API 598
TOP Flange: ISO 5211

Features
Rubber lined butterfly valve is a kind of valve with thick polymer lining on the body and disc. The lining makes the body completely isolate from medium and provides excellent anti-corrosive performance. It is designed as a device to shut-off or regulate the working medium flow and installed in pipelines or vessels with medium of acid, alkali, salt and oxideant, reducing agent, organic solvent in chemical, petroleum, pharmacy, food , iron and steel semlting, paper making, water power plant etc. It can be served as a gate valves, globe valves as well as other shutting off or regulating valves.