The role and use of ball
Ball Description: Ball is a sphere with a circular channel for opening and closing pieces, turning ball with stem valves open and close action. The opening and closing valve member is a sphere with a hole, around an axis perpendicular to the channel, so as to achieve the purpose of opening and closing the channel. For opening and closing the main valve piping and equipment media purposes.
Ball main advantages are as follows:
Applicable to the regular operation, the opening and closing fast and lightweight.
1 fluid resistance.
2 simple structure, relatively small size, light weight, easy maintenance.
3 good sealing performance.
4 mounting direction is not restricted, the flow of media can be any.
5 no vibration, noise.
Ball main drawback is as follows: Ball form of the structure can be divided into: a floating ball valve, fixed ball, elastic ball valves and valve seals; Press the channel can be divided into direct energy type, angle type and three-way, etc., can be divided into three type T shaped and L-shaped two kinds. Work can be divided according to the connected party threaded, flanged and welded three.
Valve installation and maintenance should note the following:
1 rotary valve handle to leave the location.
(2) can not be used as a throttle.
3 belt drive mechanism of the ball should be installed upright.