FIELD: sealing technology; food-processing industry. SUBSTANCE: seal has housing with shoe located in its circular groove; shoe is pressed to part to be sealed by sealing ring. Shoe is provided with additional flexible sealing ring mounted radially; circular groove of housing is provided with segment circular groove for engagement with additional ring in initial position. EFFECT: enhanced reliability. 1 dwg
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---|---|---|---|
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|
RU2089771C1 |
CENTRIFUGAL PUMP | 1990 |
|
RU2014511C1 |
PUMPING UNIT | 2004 |
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RU2262005C1 |
SEALING UNIT | 1991 |
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CENTRIFUGAL PUMP | 2011 |
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|
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UNIT OF END FACE SEALS | 1995 |
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SEALING BETWEEN TWO FIXED SURFACES | 2000 |
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SUBMERSIBLE CAGRO-HOISTING DEVICE | 1992 |
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END FACE SEALING | 2000 |
|
RU2172880C1 |
Authors
Dates
1997-07-27—Published
1993-07-08—Filed