BN Series Triple Off Set Butterfly Valve
BN series of triple eccentric butterfly valve, the valve plate adopts three-dimensional eccentric structure, opening and closing, the valve seat and disc plate almost no friction disc plate sealing ring for multi-layer stainless steel and graphite composite plate sealing ring, sealing performance is excellent, the valve size is big, small operation torque, small flow resistance, reliable sealing, suitable for large diameter and low flow resistance, the operation condition of the leakage is small.
Triple Off Set Butterfly Valve TECHNICAL PARAMETERS
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Nominal Size
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DN80~DN1600
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Pressure Rating
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PN16/PN25/PN40; CL150(PN20)/CL300(PN50)
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Operateing Temperature
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-20℃~425℃
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Characteristics
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Approximate equal percentage
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Rangeability
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/
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Seat Leakage Class
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Zero Leakage
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Body Material
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WCB/WCC/LCB/LCC;WC6/WC9;CF8/CF8M;4A/5A etc.
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Trim Material
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Metal：304+SN/304+SN；304+ST/304+ST；Soft：304+HCr/RTFE
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Seal Material
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PTFE, Flexible graphite
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