Secondary sealing element for mechanical seals

Details Secondary sealing element for mechanical seals Secondary sealing element for mechanical seals

F - Mech Eng,Light,Heat,Weapons

16

J

277/20.5

F16J 15/48 (2006.01) F16J 15/38 (2006.01)

Patent

CA 1155468

ABSTRACT OF THE DISCLOSURE A secondary sealing element for an axial seal ring, which resists stresses due to temperature, pressure, vibration, corrosion, swelling and shrinking. The sealing element is pro- duced from non-rubber-type elastic and non-brittle material and its shape in cross-section is a ring, with a pair of arms to give it an elastic action. The double-arm ring forms three radial-type sealing surfaces and is completely locked into a chamber between the axial seal ring and the shaft. A material with low static friction and higher thermal conductivity as rubber material is used. The dissipation of heat, produced by the axial sliding ring will be increased through the double contact area with the shaft of the arms in comparison to an O- ring and through a wear-resistant and non-corrosive layer on the shaft having at least the thermal conductivity of the basic material.

372009

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