| 摘要 |
A stuffing box packing assembly includes: a low density graphite preform ring that is compressible and reformable during packing to form at least one of an ID or OD seal and a high density substantially rigid end ring responsive when an axial compressive force is applied to the packing as defined in the specification is claimed. The end ring of graphite has been die formed to have angled facing surfaces. The facing surfaces of the preform ring extend at a different angle relative to the longitudinal axis of the packing assembly than do the facing surfaces of the braided end rings. The braided end rings provide a support function for the preform rings as well as a stem wiping function.
|
