Pipeline branch arrangement

Details Pipeline branch arrangement Pipeline branch arrangement

1997-09-04

1999-01-12

Nicholson, Eric K.

Pipe joints or couplings

For branched path

Y-type,

2852841, 2851261, 15104061, F16L 4102

Patent

active

058577157

ABSTRACT:
A pipeline branch arrangement that forms a piggable-Y at the intersection with the trunkline and is oriented vertically relative to the trunkline. The approach piping to all legs of the piggable-Y are configured to incorporate 3D bend or larger radii as required. This arrangement permits the passage of foam pigs, hard pigs, and smart pigs. Rotation of the piggable-Y to the vertical plane configures all of the branch piping in the vertical plane, which permits the support sled width for pipe laying to be kept to a minimum. The arrangement of the 3D bends fore and aft of the piggable-Y aligns the trunkline ends in a co-linear manner. This permits the configuration to be installed by conventional S-Lay techniques.

REFERENCES:
patent: 689045 (1901-12-01), Fruin et al.
patent: 973794 (1910-10-01), Lightcap
patent: 1562199 (1925-11-01), Baumann
patent: 1571707 (1926-02-01), Casper
patent: 3047020 (1962-07-01), Barrett, Jr.
patent: 3116503 (1964-01-01), Bagwell
patent: 3135278 (1964-06-01), Foord et al.
patent: 4971307 (1990-11-01), Killerud et al.

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