Double Flanged Rubber Lined Butterfly Valve 1.Investment casting 2.Reasonable price to get the ... order 3.Professioal OEM Double Flange Butterfly Valve: SizeDN40 - DN1400Design StandardAPI 609End flangeEN1092 ,ANSI 125/150# , ... , electric power, petroleum, petrochemical, heat supply, shipbuilding, medicine and metallurgy industries.Suitable Medium:Water, sewage,sea water, air, foodstuff, oil ...