一般球阀的结构分为浮动球球阀和固定球球阀两类。
Generally ball valve's structure divides into the fluctuation ball ball valve and the fixed ball ball valve two kinds.
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.
应用推荐