a valve is important in machinery
06-03-2011, 01:30 PM
|a valve is important in machinery
Ball valve optimum do switch, isolating valve use, but recent development has will ball valve designed to make it has throttling and control flow with, such as V type ball valves. Ball valve main characteristic is itself compact structure, reliable sealing and simple structure, convenient maintenance, seal face and spherical often with closed state, not easy be medium erosion, easy operation and maintenance, suitable for water, solvents, acid and natural gas general medium and also applies to working conditions of bad medium, such as oxygen, hydrogen peroxide, methane and ethane, widely used in industries. Ball valves body can be whole, also can be combined. 1. Fluid resistance small, full-bore ball basically no flow resistance. 2. Simple structure, small volume, light weight. 3. Close and reliable. It has two seal face and the ball valves seal face materials widely used various plastics, good sealing, can realize completely sealed. In the vacuum system has also widely used. 4. Easy operation, open and close rapidly, from full open to all rotates 90 °, facilitate as remote control. 5. Easy maintenance, ball valve structure simple, sealing ring is usually activities, remove replacement are more convenient. 6. In the fully open or fully closed, ball and seat sealing surface and medium isolation, media through the valve sealing surface, won't cause the erosion. 7. Application scope, size from to several millimeters, big to several meters from the high vacuum and high pressure can apply. 8. Due process in on-off valves can be used to wipe sex, so with the medium of suspended solids.
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