Iron butterfly valve Iron body and Iron gate Size:4-10" Connector:flange Color:black and blue Pressure:1.0-1.6mpa Product NameIron butterfly valveSize4-10" (100mm-250mm).Standard ANSI, BS, DIN, JISEnd connectorWith flange connectorColorBLACK AND BLUEWorking pressure1.0-1.6MPAStandard:Design standard: GB/T12238-2008, ISO 10631-1994 OR BS EN593-1998, BS 5155, MSS SP-67FLANGE CONNECTION: GB/T17241.6 ...