b'LARGE DIAMETER BUTTERFLY VALVESMODEL HU-B70Size DN50-DN1200General Design EN 1092Mounting Pad ISO 5211Face to Face BS EN 593; EN 558 13 series etc.Flange Drilling EN 1066-2 PN6/PN10/PN16*Inspection and Test API 5986 5*Check with APV for seat pressure rating larger sizes. Flange drilling according to ASME B16.1, ASME B16.5, ASA 150, BS10 Table D/E, EN 1092 PN2.5~PN16, AS 2129 Table D/E, AS 4087 PN10/PN14/PN16, JIS10K, ISO 7005 etc.47 MATERIALSParts Description Material Specification1 Body Cast/Ductile Iron A126 Class B*3 2 Disc Stainless Steel A351 CF8M*2 3 Stem Stainless Steel AISI 316*4 Seat EPDM *5 Bushing PTFE *16 O Ring EPDM *7 Pin Stainless Steel A351 CF8M*Other materials on request.42 SUPERSEAL - Butterfly Valves SUPERSEAL - Butterfly Valves 43'