Double Flange Center Line Sealing Butterfly Valve

Center Line Sealing Butterfly ValveMain Features:The turning center of the butterfly plate is on the center line of the valve body and the sealing face section of the butterfly plate. In closing, the ex-circle sealing face of the butterfly plate will extrude the valve seat made of synthetic rubber, generating elastic deformation on the seat to form an elastic force used as a sealing specific pressure so as to guarantee the tightness of the butterfly valve.Main Parameter SpecificationDesign and Manufacture:API 609, MSS SP-67, GB/T 12238Face to Face Dimension:API609,GB/T 12224Flange Connection Dimension:ASME B16.1,ASME B15.5,ASME B16.47,BS4504,GB/T 9113,JB/T 79Test and Inspection:API 598,JB/T 9092,GB/T 13927Pressure Temperature Rating:API 609,GB/T 12224Product RangeBody material:Cast Iron,Ductile IronNominal diameter:2"~48"(DN15~DN1200)End Connection: Wafer,Lug,etcPressure range: Class150~600(PN16~PN100)Working temperature: -10℃~+120℃Operation : Handle, Gear, Electric actuator, etc



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