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GB1335055A - Pipe units or pipelines - Google Patents

Pipe units or pipelines

Info

Publication number
GB1335055A
GB1335055A GB1335055DA GB1335055A GB 1335055 A GB1335055 A GB 1335055A GB 1335055D A GB1335055D A GB 1335055DA GB 1335055 A GB1335055 A GB 1335055A
Authority
GB
United Kingdom
Prior art keywords
envelope
mould
covering material
opening
portions
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
Inventor
V H Ralston
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.)
Industriele Onderneming Wavin NV
Wavin BV
Original Assignee
Industriele Onderneming Wavin NV
Wavin BV
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 Industriele Onderneming Wavin NV, Wavin BV filed Critical Industriele Onderneming Wavin NV
Publication of GB1335055A publication Critical patent/GB1335055A/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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints
    • F16L59/20—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints for non-disconnectable joints
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/166—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like covering the end of an insulated section

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

1335055 Insulating pipes INDUSTRIELE ONDERNEMING WAVIN NV 3 Dec 1970 57412/70 Heading F2P A pipe unit comprising an inner metal tube 21, an intermediate foamed plastics heat insulating layer 22, and a fluid and vapour impervious plastics envelope 23, or a pipe-line consisting of a plurality of such units, has an opening in the envelope or between adjacent envelopes, filled by covering material 33 cooperating with the inner and outer surfaces of the marginal portions 23<SP>1</SP> of the envelope(s) surrounding the opening. A method of producing a fine line from such pipe units is also claimed. The marginal portions 23<SP>1</SP> of the envelope(s) may be bent, corrugated or contain holes to facilitate keying of the covering material. For the covering of two adjacent pipe units, the tube ends which extend beyond the insulating layers are welded together, and a mould is inserted between the envelope portions 23<SP>1</SP>. Heat insulating material 27 is then poured into the mould to fill the space between the existing insulating layers 22, and the mould is removed leaving a cavity below the inner surfaces of the envelopes 23. A two part mould 28 is then clamped around the envelope portions 23<SP>1</SP> and the covering material 33 is poured into the mould to cover the inner and outer end surfaces of the envelopes. The mould 28 may be removed or left in position. Clamping bands may be used to aid retention of the covering material 33. Where an end plug formed of covering material is inserted between adjacent pipe units, the remaining covering material 33 surrounds the plug as well as the envelope portions 23<SP>1</SP>. For an opening in the envelope of a single pipe unit Fig. 15, existing material of the insulating layer is removed just around the opening beneath the marginal portions of the envelope 23, a mould is clamped over the envelope as previously, and the covering material 40 is poured into the opening. An 0-ring 39 may surround the opening, embedded in the covering material 40 to aid sealing of the opening. Insulating layer materials are various thermosetting resins, natural resins, rubbers, other elastomeric materials with derivatives. Covering materials used, may be these materials with various additives for required resilience and/or shrinkage properties.
GB1335055D 1970-12-03 1970-12-03 Pipe units or pipelines Expired GB1335055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5741270 1970-12-03

Publications (1)

Publication Number Publication Date
GB1335055A true GB1335055A (en) 1973-10-24

Family

ID=10479124

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1335055D Expired GB1335055A (en) 1970-12-03 1970-12-03 Pipe units or pipelines

Country Status (5)

Country Link
AU (1) AU3639671A (en)
BE (1) BE819010Q (en)
FR (1) FR2117370A5 (en)
GB (1) GB1335055A (en)
SE (1) SE375844B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162093A (en) * 1976-06-14 1979-07-24 Frantisek Sigmund Heat-insulated pipe-lines
US4221405A (en) * 1978-03-08 1980-09-09 Stonitsch Lawrence J Conduit system with expansion coupling and combined spacer and sealing sleeve
DE3013796A1 (en) * 1980-04-10 1981-10-15 G + H Montage Gmbh, 6700 Ludwigshafen THERMAL INSULATED TUBE
US4509561A (en) * 1983-04-28 1985-04-09 Power Piping Company Insulation device for application to an uninsulated portion of a preinsulated pipe
WO1990002038A1 (en) * 1988-08-23 1990-03-08 Oy Muotekno Ab Method and device for joining together of tubular plastic products
FR2831850A1 (en) * 2001-11-08 2003-05-09 Malaus Molding unit for applying coating to insulated pipe joints has two pairs of half-flanges connected by cylinder forming main chamber
CN101059187B (en) * 2007-05-23 2013-01-16 蔡海华 Flange type pipeline connector structure

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU181153B (en) * 1980-07-17 1983-06-28 Duna Tisza Koezi Allami Epitoe Pipeline for furthering medium requiring thermal insulation as well as method for making and repairing the pipeline
DE3822090C1 (en) * 1988-06-30 1989-07-27 Bayer Ag, 5090 Leverkusen, De
US6485589B1 (en) 1993-04-15 2002-11-26 3M Innovative Properties Company Melt-flowable materials and method of sealing surfaces
US7575653B2 (en) 1993-04-15 2009-08-18 3M Innovative Properties Company Melt-flowable materials and method of sealing surfaces
KR100364042B1 (en) * 1994-09-29 2005-04-06 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 Expandable Multilayer Materials
SE516544C2 (en) * 2000-05-29 2002-01-29 Powerpipe Systems Ab Pipeline and method for its manufacture
FR2937706B1 (en) * 2008-10-29 2013-02-22 Saipem Sa COAXIAL PIPE ASSEMBLY COMPRISING A THERMAL INSULATION SLEEVE

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162093A (en) * 1976-06-14 1979-07-24 Frantisek Sigmund Heat-insulated pipe-lines
US4221405A (en) * 1978-03-08 1980-09-09 Stonitsch Lawrence J Conduit system with expansion coupling and combined spacer and sealing sleeve
DE3013796A1 (en) * 1980-04-10 1981-10-15 G + H Montage Gmbh, 6700 Ludwigshafen THERMAL INSULATED TUBE
EP0038051A3 (en) * 1980-04-10 1981-12-30 G + H Montage Gmbh Thermally insulated pipe
US4509561A (en) * 1983-04-28 1985-04-09 Power Piping Company Insulation device for application to an uninsulated portion of a preinsulated pipe
WO1990002038A1 (en) * 1988-08-23 1990-03-08 Oy Muotekno Ab Method and device for joining together of tubular plastic products
FR2831850A1 (en) * 2001-11-08 2003-05-09 Malaus Molding unit for applying coating to insulated pipe joints has two pairs of half-flanges connected by cylinder forming main chamber
CN101059187B (en) * 2007-05-23 2013-01-16 蔡海华 Flange type pipeline connector structure

Also Published As

Publication number Publication date
AU3639671A (en) 1973-06-07
BE819010Q (en) 1974-12-16
SE375844B (en) 1975-04-28
FR2117370A5 (en) 1972-07-21

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Legal Events

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