GB1421481A - Thermally insulated pipe junctions - Google Patents

Thermally insulated pipe junctions

Info

Publication number
GB1421481A
GB1421481A GB1377173A GB1377173A GB1421481A GB 1421481 A GB1421481 A GB 1421481A GB 1377173 A GB1377173 A GB 1377173A GB 1377173 A GB1377173 A GB 1377173A GB 1421481 A GB1421481 A GB 1421481A
Authority
GB
United Kingdom
Prior art keywords
carrier pipe
pipe
surrounding
insulation material
washers
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
GB1377173A
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.)
BRUUN SORENSEN Ltd
Original Assignee
BRUUN SORENSEN Ltd
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 BRUUN SORENSEN Ltd filed Critical BRUUN SORENSEN Ltd
Priority to GB1377173A priority Critical patent/GB1421481A/en
Publication of GB1421481A publication Critical patent/GB1421481A/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

Abstract

1421481 Insulated pipe joints BRUUN & SORENSEN Ltd 21 March 1974 [22 March 1973] 13771/73 Heading F2G A joint between two sections of a thermally insulated pipe comprises a welded join 10 between the ends of a carrier pipe 4, 8 of each section, each section being provided with cylindrical insulation material 12, 16 surrounding the carrier pipe 4, 8, either with or without the interposition of an air space 18, and held in place by an outer pipe 14, 20, a pair of water stops 22, 24 spaced apart on either side of the join 10 each being in the form of a sleeve to fit over the end of the associated outer pipe 14, 20 and carrier pipe 4, 8 with at least one fibre washer 42, 44 disposed in a recess in the sleeve and surrounding the carrier pipe, the fibre washers being expansible on absorbing liquid to grip or to cause a deformable member, e.g. an associated rubber ring, to grip and seal against the carrier pipe, cylindrical insulation material 54 surrounding the welded join 10 between the outer stops and held in place by a split bush 56, and a further sleeve 62 preferably of heat shrinkable material such as polyvinylchloride sealed by rubber rings 58, 60 to the ends of the outer pipes 14, 20 and surrounding the water stops 22, 24 and the insulation material 54. The water stop sleeves may also be of heat shrinkable material and provided with ridges 30, 32 to grip the outer pipes or secured by adhesive thereto. Compression end caps 50, 52 are provided on the water stop sleeves around the fibre washers 42, 44 to retain the sleeves in position and the insulation material 54 is preferably made in two halves for ease of fitting. The fibre washers are suitably provided in a pack 80a (Fig. 7) disposed within a metal sealing ring 76 also containing an annular member 78 of neoprene. On absorbtion of liquid, the washers expand and force the member 78 to seal against the associated carrier pipe. In an alternative embodiment the member 78 is replaced by a neoprene 0-ring.
GB1377173A 1973-03-22 1973-03-22 Thermally insulated pipe junctions Expired GB1421481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1377173A GB1421481A (en) 1973-03-22 1973-03-22 Thermally insulated pipe junctions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1377173A GB1421481A (en) 1973-03-22 1973-03-22 Thermally insulated pipe junctions

Publications (1)

Publication Number Publication Date
GB1421481A true GB1421481A (en) 1976-01-21

Family

ID=10029061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1377173A Expired GB1421481A (en) 1973-03-22 1973-03-22 Thermally insulated pipe junctions

Country Status (1)

Country Link
GB (1) GB1421481A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221405A (en) * 1978-03-08 1980-09-09 Stonitsch Lawrence J Conduit system with expansion coupling and combined spacer and sealing sleeve
EP0059017A1 (en) * 1981-02-17 1982-09-01 Wavin B.V. An insulated branch pipe joint
EP0222719A1 (en) * 1985-10-21 1987-05-20 Forsheda AB A connection device for sealingly connecting tubular elements
EP0263928A1 (en) * 1986-10-08 1988-04-20 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Insulation of joints for thermally insulating vacuum elements
US5002716A (en) * 1984-11-14 1991-03-26 Raychem Corporation Joining insulated elongate conduit members
FR2759145A1 (en) * 1997-02-04 1998-08-07 Polymat Protection for line of joints between tubular sections in pipeline
US9062700B2 (en) 2012-06-29 2015-06-23 Saint-Gobain Performance Plastics Rencol Limited Tolerance ring with component engagement structures
GB2577655A (en) * 2012-08-29 2020-04-01 Equinor Energy As Hydrodynamic damper

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221405A (en) * 1978-03-08 1980-09-09 Stonitsch Lawrence J Conduit system with expansion coupling and combined spacer and sealing sleeve
EP0059017A1 (en) * 1981-02-17 1982-09-01 Wavin B.V. An insulated branch pipe joint
US5002716A (en) * 1984-11-14 1991-03-26 Raychem Corporation Joining insulated elongate conduit members
US5088772A (en) * 1984-11-14 1992-02-18 N. V. Raychem S.A. Joining insulated elongate conduit members
EP0222719A1 (en) * 1985-10-21 1987-05-20 Forsheda AB A connection device for sealingly connecting tubular elements
EP0263928A1 (en) * 1986-10-08 1988-04-20 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Insulation of joints for thermally insulating vacuum elements
FR2759145A1 (en) * 1997-02-04 1998-08-07 Polymat Protection for line of joints between tubular sections in pipeline
US9062700B2 (en) 2012-06-29 2015-06-23 Saint-Gobain Performance Plastics Rencol Limited Tolerance ring with component engagement structures
GB2577655A (en) * 2012-08-29 2020-04-01 Equinor Energy As Hydrodynamic damper
GB2577655B (en) * 2012-08-29 2020-08-19 Equinor Energy As Hydrodynamic damper

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Legal Events

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