stem seal valve

基本解释

According to the international informations and Santana engine, the seal mechanism and effective factors of valve stem oil seal is analyzed in this paper.
本文根据国外资料并结合桑塔纳汽车发动机，分析了气门杆油封的密封性机理及影响因素。
The stem seal of a feed water control valve uses expanded graphite packing in order to produce friction and to economize on energy for the control valve working.
电站锅炉给水调节阀的阀杆密封采用柔性石墨填料，既降低了摩擦力，又为调节阀的运行节约了能源。
Download-type valve stem, set down with a sealing gasket sealing structure, sealed down with the media in the valve sealing force increases with increasing pressure to ensure that the valve stem seal.
阀杆采用下装式、设置带有密封垫片的倒密封结构，倒密封的密封力随阀腔介质压力的增高而增大，从而确保阀杆的密封效果。