Double flange concentric type butterfly valve Specification:Size: 2”-48” / 50mm – 2000 mmDesign standard: API 609, BS EN 593.Face-to-Face dimension: API 609, DIN 3202, GB 12238, BS 5155, ISO 5752.Flange Drilling: ANSI B 16.1, BS4504, DIN PN 10 / PN 16, JIS 5K, 10K, 16K.Test: API 598.Pressure & Temperature ratings:Working Pressure10 bar / 16 barTesting PressureShell: 1.5 times rated pressure,Seat: ...