| 摘要 |
A lance tube stuffing box assembly includes within a seal cavity, a first and a second sleeve bearing oriented to be axially aligned with the bore and with each other and spaced apart within the bore to define a packings space. A plurality of braided packings are situated within the packings space and oriented to be axially aligned with each of the first and second sleeve bearings; and inserted within the bore in opposed relation to the annular wall of the seal cavity a gland follower which is likewise axially aligned and bears against the first bearing with an axial force to narrow the packings space, urging the plurality of braided packings to expand radially, such that when a lance tube is inserted axially. The axial force causes the braided packings to sealingly engage the lance tube.
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