铸石球阀阀杆密封结构的改进

Improvement on stem sealing structure of cast stone ball valve

分析了铸石球阀阀杆密封泄漏的原因,介绍了对其密封结构及密封圈形状和材料的改进方法。

Analyses causes of stem sealing leakage of cast stone ball valve, introduces improving methods for sealing structure, and shape and material of sealing ring.