... ,LCB,CF8 304,CF8M,CF3,CF3M a) Body:ductile iron,cast iron,stainless steel,carbon steel b) Disc:plated ductile iron ... ) Seat:NBR,EPDM,FKM and CR4)Standards: a) Valve design to:API609 b) Valve test to:API 598,GB13927 c) Face to ... pressure test6) Wide selection of materials,applicable for various mediums Cast Steel Triple Offset Butterfly Valve