Apparatus for making a swiveled flow line connection

Pipe joints or couplings – Ball and socket

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Details

285271, 277169, 277170, F16L 2704

Patent

active

048404101

ABSTRACT:
A swivel flow line connector is disclosed for use in misaligned connections. The connector includes male and female flange tubular members and a seal ring positioned therebetween. The male member and the seal ring have mating annular spherical surfaces which are respectively convex and concave. The female member and the seal ring have mating frustoconical tapered surfaces, but the outside diameter of the seal ring is slightly larger than the inside diameter of the female member frustoconical surface. Prior to drawing the male and female members together by bolting respective flanges thereof, the convex male member surface is pivotably engaged with the concave seal ring surface for alignment of the members in the desired swiveled position. Upon drawing the members together by tightening the flange bolts, the seal ring is radially compressed by axial displacement of the female member frustoconical surface with respect to the corresponding tapered surface of the seal ring. This radial compression effects a seal between the male and female members and the seal ring, and locks the male and female members into the swiveled alignment.

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