1) fluid resistance small, the resistance coefficient and the length of the pipeline section with equal.
2) simple structure, small volume, light weight.
3) close reliable, at present the ball valve seal face materials widely used plastic, good sealing, vacuum system has also in wide use.
4) convenient operation, open and close rapidly, from full open to all as long as 90 ° rotation, facilitate remote control.
5) convenient maintenance, ball valve structure simple, sealing ring is usually activities, remove the change are more convenient.
6) in the fully open or fully closed, the ball and seat sealing surface and medium isolation, media through the, won't cause of valve sealing surface erosion.
7) wide range, size from a few millimeters to, to several meters from the high vacuum and high pressure can apply. |
