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1. WO2006127449 - CROSS-LINE PLUGGING SYSTEM AND LOCKING PLUG

Publication Number WO/2006/127449
Publication Date 30.11.2006
International Application No. PCT/US2006/019420
International Filing Date 18.05.2006
IPC
F16L 55/18 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
55Devices or appurtenances for use in, or in connection with, pipes or pipe systems
18Appliances for use in repairing pipes
CPC
F16L 41/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
41Branching pipes; Joining pipes to walls
04Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
06making use of attaching means embracing the pipe
F16L 55/136
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
55Devices or appurtenances for use in, or in connection with, pipes or pipe systems
10Means for stopping flow from or in pipes or hoses
12by introducing into the pipe a member expandable in situ
128introduced axially into the pipe or hose
136the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like
Applicants
  • TDW DELAWARE, INC. [US]/[US] (AllExceptUS)
  • MORRISON, Phillip K. [US]/[US] (UsOnly)
  • FREEMAN, Eric N. [US]/[US] (UsOnly)
  • MORGAN, Mark A. [US]/[US] (UsOnly)
  • GARRISON, Tony R. [US]/[US] (UsOnly)
Inventors
  • MORRISON, Phillip K.
  • FREEMAN, Eric N.
  • MORGAN, Mark A.
  • GARRISON, Tony R.
Agents
  • SELLERS, Michael E.
Priority Data
11/133,51420.05.2005US
11/431,21510.05.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CROSS-LINE PLUGGING SYSTEM AND LOCKING PLUG
(FR) SYSTEME DE COLMATAGE DE LIGNE TRANSVERSALE ET FICHE DE VERROUILLAGE
Abstract
(EN)
A method of providing access to the interior of a cross-line (18) that intersects with a primary pipeline (14) of equal or greater diameter includes the steps of attaching a branch fitting (22) to the exterior of the primary pipeline, affixing a full opening valve to the branch fitting, securing a hot tap machine (46) to the valve (26), using the hot tap machine (46) to cut an opening in the primary pipeline (14) of a diameter at least equal to the internal diameter of the cross-line (18), and removing the machine leaving an access diametrically through the valve (24) and primary pipeline (14) into the interior of the cross-line (18) for installing pipeline inspection or cleaning pigs (30) and/or a locking plug (26). A rotation resistor (132) facilitates securing a locking plug (76) within the pipeline (18).
(FR)
L'invention porte sur un procédé permettant d'accéder à l'intérieur d'une ligne transversale (18) qui croise un conduit primaire (14) de diamètre égal ou supérieur. Ce procédé consiste à relier un raccord secondaire (22) à l'extérieur du conduit primaire, à fixer une soupape de pleine ouverture au raccord secondaire, à fixer une pince de branchement (46) afin de découper une ouverture dans le conduit primaire (14) d'un diamètre au moins égal au diamètre interne de la ligne transversale (18), et à ôter la pince afin de laisser un accès dans le sens diamétral à travers la soupape (24) et le conduit primaire (14) jusqu'à l'intérieur de la ligne transversale (18) afin d'installer des racleurs de conduit (30) et/ou une fiche de verrouillage (26). Une résistance pivotante (132) facilite la fixation d'une fiche de verrouillage (76) dans le conduit (18).
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