Valve rod with valve lids between bring fall airproof structure, Convenients for valve bring press replacing valve stem packing.
阀杆与阀盖之间带倒密封结构，便于阀门带压更换阀杆填料。
A packing sealing structure is arranged between the valve rod and the upper end of the valve body.
在阀杆与阀体的上端部之间设置填料密封结构。
Valve rod seal packing can adopt lip shape structure, seal up dependable, Operates moment of force small.
阀杆密封填料可采用唇形结构，密封可靠、操作力矩小。
The invention discloses a novel labyrinth compressor packing which is capable of automatic centering with a piston rod. The packing is provided with magnets.
本发明公开了一种能够与活塞杆自动对中的新型迷宫压缩机填料。
The problems such as overheat and blackening of the piston rod are solved by means of improving the composition of packing in the sealing box.
通过改进密封函填料配方解决了活塞杆过热发黑的问题。
The problems such as overheat and blackening of the piston rod are solved by means of improving the composition of packing in the sealing box.
通过改进密封函填料配方解决了活塞杆过热发黑的问题。
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