eccentric ball valve function and knowledge summary eccentric and ball valve with cutting function, in the closed to the media clutter ( Branches, textile bags, etc. ) Cut off, ensure the normal order of the valve opening and closing. 1, the half of an eccentric Industrial Valves by valve body, eccentric shaft, valve cover, spherical cap, bushings, valve seat main parts, such as through the eccentric shaft rotation 90 & deg; To realize the opening and closing of the valve, have the effect of truncation medium. 2 and half of an eccentric valve guarantee the valves in the process of opening or closing, the valve seat and the spherical cap without rubbing against each other, half of an eccentric valve adopts eccentric crankshaft, making the center line of the spherical cap deviates from the center line of the valve port a eccentricity. When the valve opens, the crankshaft turns a small Angle, the ball will leave the seat, the ball and seat no longer contact; On the other hand, in the process of valve closing, only in the closing moments, spherical cap and seat contact. 3 and a half, eccentric ball valve, adopting the jacket structure in the process of maintenance, do not need to be removed from the pipeline, simply remove bonnet bolts on, remove the valve cover, which can remove the eccentric shaft, so to ensure the valve to the online service. Four and a half, eccentric ball valve should ensure smooth flow completely when open, small head loss at runtime. Sphere using semicircular channels, has a good circulation performance and linear regulation performance, and impurities will not deposit within the body lumen. 5, half of an eccentric valve should have sufficient strength, eccentric crankshaft are structure of trunnion mounted ball, no vibration under high velocity, shell test GB13927 - according to the national standards 1992 is carried out. 6 and a half, eccentric ball valves are not allowed to have leakage, upper and lower shaft end should be at least 2 O ring seal. 7 and half of an eccentric valve has the function of cutting, in close to medium sundry ( Branches, textile bags, etc. ) Cut off, ensure the normal order of the valve opening and closing.

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