发明授权
- 专利标题: Internal live loading packing gland
- 专利标题(中): 内部活装填料压盖
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申请号: US910669申请日: 1992-07-08
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公开(公告)号: US5290046A公开(公告)日: 1994-03-01
- 发明人: James L. Houston
- 申请人: James L. Houston
- 专利权人: Houston James L
- 当前专利权人: Houston James L
- 主分类号: F16J15/18
- IPC分类号: F16J15/18
摘要:
Live loading is applied on each end of both the secondary and the primary packing of a packing gland. After installing the primary packing assembly and a lantern ring, the primary packing is compressed to proper specifications. While the primary gland is so compressed, it is locked into place using lantern ring lock bolts. The secondary packing assembly and a follower are then installed. The secondary gland is also compressed to proper specifications and the follower secured in place. The lantern ring lock bolts are then removed, both internally and externally live loading the packing gland. A single assembly of the present live loaded packing can also be installed in the gland from the process side, eliminating the need for purging and resulting in a most efficient purgeless gland.
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