Product DescriptionButterfly valve is mainly consisted of body, stem, disc, seat and driver(lever, gearbox, pneumatic and electric Actuator) and so on.On off and controlling flow of valve are made by turning stem and disc together.Product Parameters      (1)Small in size and light in weight and maintaince.(2)Perfect seal, ZERO leakage under the pressure test.(3)Excellent regulation performance.     (4)Various kinds of materials, applicable to different medium.(5)Strong wash and brush resistance and can fit to bad working condition.(6)Small torque of open and close.(7)Long service life. Standing the test of ten thousands opening and closing operation.