... scratching scars 3.Fast Delivery 4.Supply OEM/ODM Butterfly Valve of Rubber Seal : SizeDN40 - DN1400Design StandardAPI 609End flangeEN1092 ,ANSI 125/ ... check valves, gate valves and so on with the materials of ductile iron, carbon steel, stainless steel to order. Our ... manufactured in accordance with the standards of GB, ASME, ANSI, API, BS, DIN, JIS etc. Various size Butterfly Valve of Rubber Seal