... stem and disc together.Characteristics of Product:Flanged Butterfly Valve, Extension Rod Butterfly Valve: SizeDN50~DN2400Design StandardEN593End flangeEN 1092, ANSI ... 10 A536 65-45-12Stem304 416 420 431SeatNBR, EPDM,Series 20 BodyCI, DI, WCBDiscDI, ALB, CF8M, 1. ... , EPDMSuitable temperature-10°C~80°CSuitable mediumfresh water, sewage, sea water, food etc.Main Facilities:Assembling Procedure:Packing ...