Patent ID: 8181996
Filing Date: 2012-05-22
Classification: F16L,Y10S

Abstract:
1. A rotating union ( 10 ) having an input end and an output end relative to a fluid flow direction (D) therethrough, comprising: a housing ( a cylindrical low-friction bushing ( a fluid conduit ( an annular seal ( a cap ( wherein the input side of the cap is adapted to be coupled to a fluid source so that fluid can flow, via the cap, into the circular recess and into the input end of the fluid conduit, and the cap is removably and non-rotatably secured to the input end of the housing so as to maintain respective axial positions of the annular seal, cylindrical bushing and fluid conduit inside the housing; whereby when the fluid conduit rotates within the bushing, the cylindrical outer surface of the input portion of the fluid conduit rotates under friction against the inner annular engagement surface of the annular seal so that sealing engagement therebetween is maintained.