Pipe joints or couplings – For branched path – Y-type
Patent
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.
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Gray David Arthur
Harrison Gary Edward
McCoy Stephen Talbot
Edwards Robert J.
J. Ray McDermott S.A.
LaHaye D. Neil
Nicholson Eric K.
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