FIELD: sealing shafts of centrifugal pumps. SUBSTANCE: secondary seal is made from single-step corrugated collar whose ends have trapezoidal section at angle of 1 to 90 deg. Such construction ensures reliable sealing and adequate friction force for transmission of rotation at insignificant axial forces. Revolving ring is centered by means of flexible ring at axial mobility. EFFECT: enhanced reliability of sealing. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| END FACE SEAL | 1994 |
|
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| JOINT OF DOWNHOLE MOTOR | 2001 |
|
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| SHAFT SEAL | 1992 |
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| END SEAL | 0 |
|
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| CENTRIFUGAL PUMP END FACE SEAL | 1999 |
|
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| DOUBLE-ACTING BALL COCK FOR OPERATION AT HIGH PRESSURES | 1999 |
|
RU2171935C2 |
