... 惯性球 inertia ball 球阀座 ball valve seat 感载比例阀 loading sensing pressure proportoining valve ...
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介绍了固定球球阀的密封原理和阀座密封力的计算，分析了加工误差对密封性能的影响，提出了改进意见。
Introducing the sealing principle of fixed ball valve and the calculation of seat sealing force, analyzing the effect of machining error upon sealing property and putting forward improving opinions.
威廉姆森固定球阀一般采用球前阀座密封结构。
In general, WILLIAMSONs trunnion ball valve features the front ball sealing design structure.
该球阀阀前、阀后阀座都能密封，即所谓双向密封特性，利用自带的排放阀，阀体中腔可向外排放。
The ball valve before the valve can be closed after the valve seat, the so-called two-way sealing characteristics, the use of built-in discharge valve, the valve body cavity may be out emissions.
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