... )Materials:body-DI,WCB,Stainless Steel disc-D Double Flange Butterfly Valve:SizeDN40 - DN1200Design StandardAPI 609End flangeEN1092 ,ANSI 125/150# , ... Suitalbe for handles(dn50~300), gear operators, electric and pneumatic control actrators.Products;We can produce butterfly valves, check valves, gate ... in accordance with the standards of GB, ASME, ANSI, API, BS, DIN Double flange DN1200 Butterfly valve