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.

TECHNICAL PARAMETERS

Nominal SizeDN80~DN1600
Pressure RatingPN16/PN25/PN40; CL150(PN20)/CL300(PN50)
Operateing Temperature-20℃~425℃
CharacteristicsApproximate equal percentage
Rangeability/
Seat Leakage ClassZero Leakage
Body MaterialWCB/WCC/LCB/LCC;WC6/WC9;CF8/CF8M;4A/5A etc.
Trim MaterialMetal:304+SN/304+SN;304+ST/304+ST;Soft:304+HCr/RTFE
Seal MaterialPTFE, Flexible graphite