Valve rod with valve lids between bring fall airproof structure, Convenients for valve bring press replacing valve stempacking.
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。
2
Based on customers requirement, a packing tightening design may be employed to obtain more reliable stempacking seal, which is loaded by bevelling spring.
根据用户的需要，可以采用碟形弹簧加载的填料压紧机构，使阀杆填料的密封更加可靠。
3
Describe the problem of the traditional packing box in field application, and the structure and virtue of auxiliary stripping assembly of stempacking to the question.