IL112245A - Method of lining existing pipework - Google Patents

Method of lining existing pipework

Info

Publication number
IL112245A
IL112245A IL112245A IL11224589A IL112245A IL 112245 A IL112245 A IL 112245A IL 112245 A IL112245 A IL 112245A IL 11224589 A IL11224589 A IL 11224589A IL 112245 A IL112245 A IL 112245A
Authority
IL
Israel
Prior art keywords
pipework
liner pipe
swaging
tension
liner
Prior art date
Application number
IL112245A
Inventor
Brian Edward Mcguire
Original Assignee
British Gas Plc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB8810894A external-priority patent/GB2218486B/en
Application filed by British Gas Plc filed Critical British Gas Plc
Publication of IL112245A publication Critical patent/IL112245A/en

Links

Landscapes

  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A method of lining installed pipework which includes the steps of: taking a length of liner pipe of memory retaining plastics material and of an external diameter greater than the internal diameter of the pipework to be lined, drawing the liner pipe through a swaging die, preheating the liner pipe before the swaging step to a temperature between 35]C and 90]C, the said swaging step being effected under tension using pulling means threaded through the pipework and attached to the leading end of the liner pipe to reduce the external diameter of the liner pipe, and the tension applied by the pulling means being such as partially to restrain the radial expansion of the outer surface of the liner pipe after its emergence from the die, drawing the liner pipe through the installed pipework with its outer diameter reduced to a dimension less than that of the inner diameter of the pipework, and after drawing the liner pipe through the installed pipework allowing the liner pipe to expand within the pipework by relaxation of the tension followed by memory induced expansion at ordinary atmospheric pressure and at the ambient temperature of the pipework.
IL112245A 1988-05-09 1989-05-02 Method of lining existing pipework IL112245A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8810894A GB2218486B (en) 1988-05-09 1988-05-09 Piplines.
IL9015289A IL90152A (en) 1988-05-09 1989-05-02 Method and apparatus for the lining of existing pipes

Publications (1)

Publication Number Publication Date
IL112245A true IL112245A (en) 1997-03-18

Family

ID=26293865

Family Applications (14)

Application Number Title Priority Date Filing Date
IL112336A IL112336A (en) 1988-05-09 1989-05-02 Method of lining existing pipework
IL112245A IL112245A (en) 1988-05-09 1989-05-02 Method of lining existing pipework
IL11976389A IL119763A (en) 1988-05-09 1989-05-02 Method and apparatus for the lining of existing pipes
IL112354A IL112354A (en) 1988-05-09 1989-05-02 Apparatus for use in lining existing pipework
IL112401A IL112401A (en) 1988-05-09 1989-05-02 Apparatus for use in lining existing pipework
IL112304A IL112304A (en) 1988-05-09 1989-05-02 Method of lining existing pipework
IL11224595A IL112245A0 (en) 1988-05-09 1995-01-04 Method of lining existing pipework
IL11230495A IL112304A0 (en) 1988-05-09 1995-01-11 Method of lining existing pipework
IL11233695A IL112336A0 (en) 1988-05-09 1995-01-13 Method of lining existing pipework
IL11235495A IL112354A0 (en) 1988-05-09 1995-01-17 Apparatus for use in lining existing pipework
IL11240195A IL112401A0 (en) 1988-05-09 1995-01-20 Apparatus for using in lining existing pipework
IL11976496A IL119764A0 (en) 1988-05-09 1996-12-05 Method and apparatus for the lining of existing pipes
IL11976396A IL119763A0 (en) 1988-05-09 1996-12-05 Method and apparatus for the lining of existing pipes
IL11976596A IL119765A0 (en) 1988-05-09 1996-12-05 Method and apparatus for the lining of existing pipes

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IL112336A IL112336A (en) 1988-05-09 1989-05-02 Method of lining existing pipework

Family Applications After (12)

Application Number Title Priority Date Filing Date
IL11976389A IL119763A (en) 1988-05-09 1989-05-02 Method and apparatus for the lining of existing pipes
IL112354A IL112354A (en) 1988-05-09 1989-05-02 Apparatus for use in lining existing pipework
IL112401A IL112401A (en) 1988-05-09 1989-05-02 Apparatus for use in lining existing pipework
IL112304A IL112304A (en) 1988-05-09 1989-05-02 Method of lining existing pipework
IL11224595A IL112245A0 (en) 1988-05-09 1995-01-04 Method of lining existing pipework
IL11230495A IL112304A0 (en) 1988-05-09 1995-01-11 Method of lining existing pipework
IL11233695A IL112336A0 (en) 1988-05-09 1995-01-13 Method of lining existing pipework
IL11235495A IL112354A0 (en) 1988-05-09 1995-01-17 Apparatus for use in lining existing pipework
IL11240195A IL112401A0 (en) 1988-05-09 1995-01-20 Apparatus for using in lining existing pipework
IL11976496A IL119764A0 (en) 1988-05-09 1996-12-05 Method and apparatus for the lining of existing pipes
IL11976396A IL119763A0 (en) 1988-05-09 1996-12-05 Method and apparatus for the lining of existing pipes
IL11976596A IL119765A0 (en) 1988-05-09 1996-12-05 Method and apparatus for the lining of existing pipes

Country Status (1)

Country Link
IL (14) IL112336A (en)

Also Published As

Publication number Publication date
IL119763A (en) 2001-10-31
IL112245A0 (en) 1995-03-30
IL119764A0 (en) 1997-03-18
IL112304A0 (en) 1995-03-30
IL112336A (en) 1997-03-18
IL119765A0 (en) 1997-03-18
IL112304A (en) 1997-03-18
IL112401A0 (en) 1995-03-30
IL112401A (en) 1997-03-18
IL119763A0 (en) 1997-03-18
IL112354A (en) 1997-03-18
IL112354A0 (en) 1995-03-30
IL112336A0 (en) 1995-03-30

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IL90152A (en) Method and apparatus for the lining of existing pipes
FI933293A0 (en) VARIABELT VINKELMATNINGSFOERFARANDE FOER FODRING AV ROERDELAR
IL112245A (en) Method of lining existing pipework
McGuire Method and Apparatus for the Lining of Existing Pipes
DK200201881A (en) Method of lining installed pipelines

Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees