Size: 2"-48" Standard: ANSI, BS, DIN Material: Cast Iron, Ductile Iron, SS, WCB Certification: ISO, CE ... : ISO series 13 Flange drilling ANSI 125/150, BS4504 and DIN PN10 / PN16 flanges2) Body: cast iron, ductile iron, carbon steel ... ) Bushing: PTFEFor catalog, pls visit www.metalvalves.com Butterfly Valves Double Flanged