| 摘要 |
A stuffing box for sealing around a shaft. The stuffing box includes a seal which engages the circumferential surface of a shaft and creates a fluid seal therearound. The stuffing box also includes a wear indicator that can be used to provide an audible, visual or tactile indication that the seal has deteriorated a predetermined amount. An additional stuffing box is disclosed in which wedge inserts are used to create an effective fluid seal around a shaft. The stuffing box includes lower and upper housings, each including a seal. In each seal, a wedge insert is placed within tapered packing and compresses the packing against a shaft received within the housings, and against an internal surface of the housings. The packings can be placed on a platform ring that uses a spring to exert a biasing force further compressing the packings against the wedge and against the shaft and housing.
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