Usually with the ball in the upper and lowershaft with bearings, operating torque, suitable for high pressure and large diameter valves.
通常在与球体的上、下轴上装有轴承，操作扭距小，适用于高压和大口径的阀门。
2
With snail clench solid is on lowershaft, with 2nr/min (N is embroider engine rotate speed) shuttle of rotate speed edge wears the annular slideway C that go up (oriented tine) high speed runs.
用螺钉紧固在下轴上，以2nr/min（n为绣花机转速）转速沿梭架上的环形导轨C（导向齿）高速运转。
3
Designed for valves and lowershaft speed applications under medial pressure in food processing, pharmaceuticals, paper mills, fibre plants where high purity and corrosion resistance is required.