turning valve

Romote controlling of drawworks and driller's working indoors are achieved by handling the hand of gas valve to drive the turning axle of band brake after replacing brake handle with brake air cylinder.

用刹车气缸取代刹把驱动滚筒带刹车的转轴，操纵气阀手柄实现了刹车的远程控制及司钻入室操作。

liquid jig for cylindrical turning valve tray

气门盘外圆车削液压夹具

Hydraulic station built-in flow control valve, adjustable lifting and turning speed.

液压站内 置 流量控制阀, 可调校升降及翻转速度.

This turning force in a butterfly valve is determined by three factors. ( 1) Friction of the disc to seat for sealing ( 2) Bearing friction ( 3) Dynamic torque.

蝶阀上的这种旋转作用力取决于三个因素：（1）阀瓣与阀座密封的摩擦力；（2）轴承摩擦力；（3）动力矩。

Close the valve fully by turning the stem in a clockwise direction.

顺时针旋转阀杆,完全关闭阀门.