High pressure product swivel

Details High pressure product swivel High pressure product swivel

1984-12-17

1987-03-03

Husar, Cornelius J.

Pipe joints or couplings

With fluid pressure seal

Swivel with flange in socket

285136, 285168, 285190, 285276, 285281, F16L 3900

Patent

active

046470778

ABSTRACT:
A rotatable swivel comprising a swivel body, a ball bearing assembly, and a primary upper seal axially offset from a primary lower seal for sealing a conduit chamber is disclosed. Pressurization of the conduit chamber of the swivel in cooperation with the differential axial offset of the primary seals creates axial pre-loading of the swivel operably aiding in the sealing of the conduit chamber and maintaining the concentricity of the bearing assembly between a rotatable outer ring and a stationary inner ring and providing wear compensation for the swivel. Secondary upper and lower seals are disclosed whereby if the primary seals fail to retain pressure in the conduit chamber, the respective secondary seal maintains the initial axial loading of the failed primary seal.

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