... .Reasonable price to get the order 3.Professioal OEM Double Flange Butterfly Valve: SizeDN40 - DN1400Design StandardAPI 609End flangeEN1092 ,ANSI 125 ... for handles(dn50~300), gear operators, electric and pneumatic control actrators.Products;We can produce butterfly valves, check ... in accordance with the standards of GB, ASME, ANSI, API, BS, DIN, JIS etc. double flanged rubber lined butterfly valve