The through hole the ball valve passage center line coincident or perpendicular to the completion of the valve fully open or fully closed

Ball is a sphere with a circular hole as the opening and closing parts, turning ball with stem, in order to achieve open and close movement of the valve. The main function is off  Instrument manifolds  the pipeline and the medium flow path, its working principle is the use of the handle or other device is driven ball rotated 90 ° (special structure ball exceptions), the through hole of the sphere coincides with the center line of the body  Check valve  or vertically, to complete the valve fully open or fully closed. Ball valve structure according to the structure of the sealing mechanism, into floating ball valve and ball valve fixed ball valve.