GB1160639A - Thermally Insulated Pipe - Google Patents

Thermally Insulated Pipe

Info

Publication number
GB1160639A
GB1160639A GB5773067A GB5773067A GB1160639A GB 1160639 A GB1160639 A GB 1160639A GB 5773067 A GB5773067 A GB 5773067A GB 5773067 A GB5773067 A GB 5773067A GB 1160639 A GB1160639 A GB 1160639A
Authority
GB
United Kingdom
Prior art keywords
tube
adjacent
tubes
inner tube
coupling sleeve
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
GB5773067A
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.)
Johns Manville Corp
Johns Manville
Original Assignee
Johns Manville Corp
Johns Manville
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 Johns Manville Corp, Johns Manville filed Critical Johns Manville Corp
Publication of GB1160639A publication Critical patent/GB1160639A/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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F16L21/025—Rolling sealing rings
    • 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
    • F16L59/182—Joints with sleeve or socket

Landscapes

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

Abstract

1,160,639. Thermally insulated pipes; pipe couplings. JOHNS-MANVILLE CORP. 19 Dec., 1967 [27 Dec., 1966], No. 57730/67. Headings F2G and F2P. A thermally insulated pipe section comprising coaxial inner and outer tubes, adapted to be connected to similar sections to form a pipe system for installation underground, has a coupling sleeve mounted on one end of the inner tube and sealed with respect thereto, the sleeve extending at least partially within the outer tube and being embedded in thermal insulation material filling the space between the outer and inner tubes, the other end of the inner tube protruding beyond the end of the outer tube and being receivable slidably and sealingly within the coupling sleeve of an adjacent section, such that substantially continuous thermal insulation is provided along the length of the inner tube system while a gap is left between adjacent inner tubes to allow for thermal expansion. In one embodiment, Fig. 2, the inner tubes 4 are of copper coated with silicone grease to allow axial expansion within the insulation material 48 which is a foamed polyurethane, the coupling sleeve 26 is a bronze casting, provided with ribs 28, 29 and associated grooves 30 containing sealing rings 32, and the outer tubes 6 are of asbestos cement. The coupling sleeve is assembled on to one end of one inner tube, with an integral flange 34 in abutment with the end of the inner tube, and resilient members 10, 38, which are mounted respectively on the coupling sleeve and the mating end of the adjacent inner tube, are fitted into one outer tube 6, prior to injection of the polyurethane foam, the latter being caused to fill the space between inner and outer tubes and also to fill holes 24 in the member 10. Adjacent sections are then fitted together, the free end of the adjacent inner tube entering the coupling sleeve 26 and being sealed by the ring 32, while the member 10, which is provided with flexible lips 18, enters the adjacent outer tube to couple the outer tubes together. Abutment of the outer tube end 36 with a flange 12 of member 10 limits insertion of the tube 4 to allow room for thermal expansion. In a modification, Fig. 4, neither of the resilient members 60, 80, which replace the members 10, 38 acts as a coupling member, a separate P.V.C. plastics sleeve 86 being used to connect adjacent outer tubes 56 which are also of P.V.C. plastics material, a rubber sealing gasket 90 fitted in a recess 88 of sleeve 86 engaging the outer tube to seal the latter.
GB5773067A 1966-12-27 1967-12-19 Thermally Insulated Pipe Expired GB1160639A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60478366A 1966-12-27 1966-12-27

Publications (1)

Publication Number Publication Date
GB1160639A true GB1160639A (en) 1969-08-06

Family

ID=24421025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5773067A Expired GB1160639A (en) 1966-12-27 1967-12-19 Thermally Insulated Pipe

Country Status (5)

Country Link
BE (1) BE708356A (en)
DE (1) DE1650054C3 (en)
FR (1) FR1552350A (en)
GB (1) GB1160639A (en)
SE (1) SE333672B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49126661U (en) * 1973-02-26 1974-10-30
JPS5216677U (en) * 1975-07-24 1977-02-05
JPS5344959A (en) * 1976-10-04 1978-04-22 Pont A Mousson Large diameter heat insulation pipe
GB2441546A (en) * 2006-09-05 2008-03-12 Scotsman Beverage Systems Ltd Insulated pipe fitting
CH701495A1 (en) * 2009-07-22 2011-01-31 Brugg Rohr Ag Holding A method of connecting a connector with a heat-insulated pipe.

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL177345C (en) * 1977-07-04 1985-09-02 Josephus Johannes Dominicus Ha PREFABRICATED CHIMNEY PIPE SECTION.
DE2900528C2 (en) * 1979-01-08 1984-06-28 Halbergerhütte GmbH, 6600 Saarbrücken Pipeline to be laid in the ground for district heating systems
DE2913876A1 (en) * 1979-04-06 1980-10-16 Fibercast Gmbh THERMALLY INSULATED TUBE AND METHOD FOR THE PRODUCTION THEREOF
DE4337887C2 (en) * 1993-11-05 1996-04-18 Jakob Loferer Hot gas pipe connection
DE4444879C1 (en) * 1994-12-16 1996-01-04 Gef Ingenieurgesellschaft Fuer End seal for jacketed heating pipe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49126661U (en) * 1973-02-26 1974-10-30
JPS5216677U (en) * 1975-07-24 1977-02-05
JPS5344959A (en) * 1976-10-04 1978-04-22 Pont A Mousson Large diameter heat insulation pipe
JPS5437331B2 (en) * 1976-10-04 1979-11-14
GB2441546A (en) * 2006-09-05 2008-03-12 Scotsman Beverage Systems Ltd Insulated pipe fitting
CH701495A1 (en) * 2009-07-22 2011-01-31 Brugg Rohr Ag Holding A method of connecting a connector with a heat-insulated pipe.

Also Published As

Publication number Publication date
FR1552350A (en) 1969-01-03
DE1650054B2 (en) 1974-04-18
BE708356A (en) 1968-06-21
SE333672B (en) 1971-03-22
DE1650054C3 (en) 1974-11-21
DE1650054A1 (en) 1970-08-13

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Legal Events

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