Anti-clockwise rotate handwheel driving the pole rotate to make the disc of seal body disengage from seal and reach circulating body, which make the medium flow or adjust medium flux.
英
美
- 逆时针转动手轮带动丝杆旋转使密封腔阀板脱离密封副到达流通腔,使介质流通或调节介质流量;