ball valves have superiority
Ball Valves have many advantages. 1, with the lowest flow resistance (real 0); 2, body symmetry, in particular welded body structure, can well withstand the stress from the pipe; 3, in the larger range of pressure and temperature can be completely sealed; 4, the ball off pieces of the boundary position in automatic positioning; can achieve rapid opening and closing, opening and closing, the operation was no impact. 5, closing off parts can withstand the pressure differential. 6, work on media in double sealed and reliable; 7, in the fully open and fully closed, the ball and seat sealing surface and the dielectric isolation, so speed does not cause the media through the valve sealing surface erosion; 8, compact, light weight, it could be considered for low-temperature media system is the most reasonable of the valve structure; Disadvantages: Regulation of performance relative to the Ball Valve to be worse, especially the pneumatic valve (or electric valve).
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