TOROIDAL FLUID SWIVEL FOR HIGH PRESSURE APPLICATIONS

摘要

A fluid swivel for fluid transfer across a rotary interface includes inner annular and outer annular elements (5, 6), located with their adjacent surfaces in close proximity to define a chamber (7) between the adjacent surfaces. The swivel inner annular element (5) has a conduit (LI) connected to an end of an incoming fluid line. The outer annular element (6) is connected to outgoing product piping and has a primary duct (8) for transport of fluid from the chamber to the product piping. The swivel includes an outer reinforcing annular wall (10) arranged adjacent to the outer peripheral wall of the outer annular element (6). The outer reinforcing annular wall has two peripheral centering surface portions (11, 12) for contacting and/or registering with the outer peripheral wall of the outer annular element (6). The outer reinforcing annular wall (10) further has a central peripheral opening (13) extending along a portion of the periphery for allowing the primary duct (8) to pass through.