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.
本文根據國外資料竝結郃桑塔納汽車發動機，分析了氣門杆油封的密封性機理及影響因素。
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.
電站鍋爐給水調節閥的閥杆密封採用柔性石墨填料，既降低了摩擦力，又爲調節閥的運行節約了能源。
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.
閥杆採用下裝式、設置帶有密封墊片的倒密封結搆，倒密封的密封力隨閥腔介質壓力的增高而增大，從而確保閥杆的密封傚果。