| 摘要 |
sealing technology; stuffing box seals of shut-off and adjusting fittings of pipe lines of hot and cold water systems. SUBSTANCE: sawdust is used as stuffing medium; resinous agents are removed from sawdust; sawdust loaded in stuffing box chamber embraces member to be sealed; sawdust is pressed by hold- down unit. In the course of operation, sawdust becomes swollen due to impregnation with water, thus providing for tight compression of unit to be sealed and self-restoration of stuffing box seal. EFFECT: enhanced operational reliability. 1 dwg
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