Structure:Single seal,Unbalanced,dependent of direction of rotation,conical spring drived
                   by both side hook,Separate.

                   (Please confirmTemperaturehe rotate direction of axis or sping
                     when you order goods.)   

Application:water pump sewage pump,oil circulating pump,chemical industry pump.

Operating limits:Pressure≤1.0MPa Temperature=- 30～180℃   speed≤15m/s