F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
230/148, 277/20.
F16J 15/36 (2006.01)
Patent
CA 2000910
ABSTRACT A mechanical seal arrangement for use in association with a pump casing structure and a drive shaft for driving a pump impeller which is housed in the pump casing structure, is disclosed, the seal arrangement comprising: a rotatable seal ring having a seal face mountable concentrically on the drive shaft for rotation with the drive shaft; a non-rotatable seal ring having a seal face mountable in axial alignment with the rotatable seal ring assembly; and biassing means for urging the rotatable and non-rotatable seal rings axially towards each other for effecting sealing engagement of the seal faces of the respective seal rings; the arrangement being characterized therein that the biassing means comprises at least two disk spring elements spaced apart and encapsulated in an elastomeric body, the biassing means being locatable in use in a tensioned state between either one of the seal rings and the pump casing structure.
Bep Bestobell Sa (pty) Limited
Mccarthy Tetrault Llp
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