... MPa3)Materials:body-DI,WCB,Stainless Steel disc-D Double Flange Butterfly Valve:SizeDN40 - DN1200Design StandardAPI 609End flangeEN1092 ,ANSI 125/150# ,DIN2501Face ... , medicine and metallurgy industries.Suitable Medium:Water, sewage,sea water, air, foodstuff, oil etc.Working Temperature:-10°C~150°COperator:Suitalbe ... with the standards of GB, ASME, ANSI, API, BS, DIN Ductile iron Butterfly valve