GB1448823A - Method for protecitng steel pipe joints - Google Patents

Method for protecitng steel pipe joints

Info

Publication number
GB1448823A
GB1448823A GB5103772A GB5103772A GB1448823A GB 1448823 A GB1448823 A GB 1448823A GB 5103772 A GB5103772 A GB 5103772A GB 5103772 A GB5103772 A GB 5103772A GB 1448823 A GB1448823 A GB 1448823A
Authority
GB
United Kingdom
Prior art keywords
pipes
cover
resin
unsaturated polyester
cavity
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5103772A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BP PLC
Original Assignee
BP 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
Application filed by BP PLC filed Critical BP PLC
Priority to GB5103772A priority Critical patent/GB1448823A/en
Publication of GB1448823A publication Critical patent/GB1448823A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/02—Welded joints
    • F16L13/0254—Welded joints the pipes having an internal or external coating
    • F16L13/0272—Welded joints the pipes having an internal or external coating having an external coating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
    • F16L58/181—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings for non-disconnectible pipe joints

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

1448823 Method of protecting pipe joints BRITISH PETROLEUM CO Ltd 12 Dec 1973 [6 Nov 1972 17 Nov 1972] 51037/72 and 53092/72 Heading F2G The joint 5 between weight, e.g. cement, coated steel pipes 1, 2 is protected by a method which comprises coating the pipes around the joint area with a layer 6 of anti-corrosion material, e.g. bitumen, unsaturated polyester resin or glass fibre filled unsaturatedpolyester resin; covering the layer 6 with a membrane 7, e.g. of polyethylene or polyvinyl chloride flexible sheet; surrounding the joint with a tubular 8, 9 of plastics material, e.g. high density polyethylene so forming a cavity between the pipes, the ends of their weight coatings 3, 4 and the cover and introducing into the cavity through apertures 17, 18 in the cover an unsaturated polyester resin based material which is then allowed to set. The tubular cover may be longitudinally divided into two or more sections adapted to co-operate with one another and to be fitted around the pipes where they are fixed together by, e.g. external strapping 10. The cover may be spaced away from the pipes by distance pieces 11, 12, 13, 14, 15 provided with pathways through them or by internal ribs on the cover made to form a helical passage between the pipes and the cover to allow the resin to easily fill the whole of the cavity. The unsaturated polyester based material may comprise an unsaturated polyester, an ethylenically unsaturated monomer copolymerizable therewith, e.g. styrene, a free radical vinyl polymerization catalyst and a mineral filler, e.g. particulate silica. The resin to filler weight ratio may be between 1 : 7 to 1 : 15.
GB5103772A 1972-11-06 1972-11-06 Method for protecitng steel pipe joints Expired GB1448823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5103772A GB1448823A (en) 1972-11-06 1972-11-06 Method for protecitng steel pipe joints

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5103772A GB1448823A (en) 1972-11-06 1972-11-06 Method for protecitng steel pipe joints

Publications (1)

Publication Number Publication Date
GB1448823A true GB1448823A (en) 1976-09-08

Family

ID=10458393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5103772A Expired GB1448823A (en) 1972-11-06 1972-11-06 Method for protecitng steel pipe joints

Country Status (1)

Country Link
GB (1) GB1448823A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133112A (en) * 1983-01-05 1984-07-18 Productions & Innovations Limi Making sheathed pipes
WO1996029535A1 (en) * 1995-03-17 1996-09-26 Basf Aktiengesellschaft Corrosion protection for steel pipes
US6402201B1 (en) * 1996-08-12 2002-06-11 Urethane Products International Protection of pipeline joint connections

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133112A (en) * 1983-01-05 1984-07-18 Productions & Innovations Limi Making sheathed pipes
WO1996029535A1 (en) * 1995-03-17 1996-09-26 Basf Aktiengesellschaft Corrosion protection for steel pipes
US6402201B1 (en) * 1996-08-12 2002-06-11 Urethane Products International Protection of pipeline joint connections

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee