SE8703228L - PRE-INSULATED CONNECTOR - Google Patents

PRE-INSULATED CONNECTOR

Info

Publication number
SE8703228L
SE8703228L SE8703228A SE8703228A SE8703228L SE 8703228 L SE8703228 L SE 8703228L SE 8703228 A SE8703228 A SE 8703228A SE 8703228 A SE8703228 A SE 8703228A SE 8703228 L SE8703228 L SE 8703228L
Authority
SE
Sweden
Prior art keywords
outer pipe
heat
corrugated
pipes
wall thickness
Prior art date
Application number
SE8703228A
Other languages
Swedish (sv)
Other versions
SE8703228D0 (en
Inventor
J Friessner
S Fuhrmann
B Knitter
Original Assignee
Kabelmetal Electro Gmbh
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 DE19863628434 external-priority patent/DE3628434A1/en
Priority claimed from DE19863635515 external-priority patent/DE3635515C2/en
Application filed by Kabelmetal Electro Gmbh filed Critical Kabelmetal Electro Gmbh
Publication of SE8703228D0 publication Critical patent/SE8703228D0/en
Publication of SE8703228L publication Critical patent/SE8703228L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/18—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using tubular layers or sheathings
    • B29C63/20—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using tubular layers or sheathings using pressure difference, e.g. vacuum
    • 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
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/028—Composition or method of fixing a thermally insulating material
    • 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
    • F16L59/143—Pre-insulated pipes
    • 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
    • F16L59/153—Arrangements for the insulation of pipes or pipe systems for flexible pipes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/18—Pleated or corrugated hoses

Abstract

To produce a more flexible heat- insulated conduit, consisting of two concentric pipes 1, 3, of which at least the outer pipe is a corrugated metal pipe, a heat-insulation layer 2 of foamed plastics based on polyurethane is situated between the pipes, the polyurethane foam having closed pores and an elongation at break of at least 25%. Further, the wall thickness S of the heat- insulating layer 2 is less than 30% of the average diameter D of the outer pipe, the corrugated depth t of the outer pipe 3 is greater than 0.05 D and the distance a between two corrugation crests of the outer pipe 3 is smaller than three times the value of the corrugated depth t. The wall thickness (s, Fig. 2 not shown) of the outer pipe 3 is smaller than 0.2 times the value of the corrugated depth t. A plastics jacket 4, helical spacer 6 and a bituminous layer 5 are also provided. Figs. 5 and 6 (not shown) illustrate terminal and through connections which involve the use of a helical spring (9) to achieve a connection for the outer pipe 3 and brazing at a connection 10 or 15 to join the inner pipes. <IMAGE>
SE8703228A 1986-08-21 1987-08-20 PRE-INSULATED CONNECTOR SE8703228L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863628434 DE3628434A1 (en) 1986-08-21 1986-08-21 Butt connection or through-connection for a pipeline comprising two concentric, corrugated metal pipes
DE19863635515 DE3635515C2 (en) 1986-10-18 1986-10-18 Heat insulated conduit

Publications (2)

Publication Number Publication Date
SE8703228D0 SE8703228D0 (en) 1987-08-20
SE8703228L true SE8703228L (en) 1988-02-22

Family

ID=25846758

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8703228A SE8703228L (en) 1986-08-21 1987-08-20 PRE-INSULATED CONNECTOR

Country Status (7)

Country Link
CH (1) CH673694A5 (en)
DK (1) DK432787A (en)
FI (1) FI873607A (en)
FR (1) FR2606857A1 (en)
GB (1) GB2195163B (en)
IT (1) IT1211728B (en)
SE (1) SE8703228L (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5927344A (en) * 1996-01-03 1999-07-27 Nobileau; Philippe Subsea flexible pipe
NO335033B1 (en) * 2000-05-10 2014-08-25 Itp Pipe with double pipe wall and high bending stiffness
FR2817319B1 (en) * 2000-11-29 2008-12-19 Itp DOUBLE ENVELOPE PIPELINE WITH IMPROVED FLAMBING RESISTANCE
FR2808864B1 (en) * 2000-05-10 2003-01-24 Itp IMPROVED FLAME RESISTANCE PIPELINE
GB0326118D0 (en) * 2003-11-08 2003-12-17 Subsea 7 Uk Apparatus and method
DE202006009337U1 (en) * 2006-06-14 2006-08-17 Brugg Rohr Ag, Holding Heat-insulated pipe used in a heating system and in drinking water and effluent lines comprises an inner pipe, a heat insulating layer surrounding the inner pipe, a film surrounding the heat insulating layer and a corrugated outer pipe
DE102007015660A1 (en) 2007-03-31 2008-10-02 Brugg Rohr Ag, Holding Flexible heat-insulated conduit
DE102009034628A1 (en) * 2009-07-24 2011-02-03 Fritz Hahn Gmbh & Co Kg Method for applying insulation on pipe, involves helically winding-up insulating tape on rotating pipe, where rotating pipe is moved according to inclination in pipe longitudinal direction
CH707764A2 (en) 2013-03-06 2014-09-15 Brugg Rohr Ag Holding Thermally insulated corrugated pipe.
GB2606470B (en) * 2019-12-17 2024-04-03 Cummins Emission Solutions Inc Insulated exhaust gas conduit systems

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1525658C3 (en) * 1966-06-01 1981-10-15 Goepfert, Lotte, 2000 Hamburg Thermally insulated conduit
AT299634B (en) * 1967-08-24 1972-06-26 Kabel Metallwerke Ghh Flexible conduit for the transport of liquids or gases
US3490496A (en) * 1968-01-15 1970-01-20 Vacuum Barrier Corp Coaxial tubing having improved spacer means
DE2224314A1 (en) * 1972-05-18 1973-11-29 Kabel Metallwerke Ghh Acoustic insulated ventilation ducting - with foamed plastic layer between metal outer and plastic liner tubes
DE2438004A1 (en) * 1974-08-07 1976-02-19 Kabel Metallwerke Ghh FLEXIBLE PIPING FOR TRANSPORTING LIQUID OR GAS-FORMED DEEP-COOLED MEDIA
DE2905250A1 (en) * 1979-02-12 1980-08-14 Kabel Metallwerke Ghh Coaxial heating pipe with corrugated inner and outer pipe - has flat portions in inner pipe locatable by markings on outer pipe
DE3242322A1 (en) * 1982-11-16 1984-05-17 Felten & Guilleaume Energietechnik GmbH, 5000 Köln POWERFUL TERMINATION OF A FLEXIBLE DISTRICT HEATING PIPE

Also Published As

Publication number Publication date
FR2606857A1 (en) 1988-05-20
SE8703228D0 (en) 1987-08-20
CH673694A5 (en) 1990-03-30
GB2195163B (en) 1990-04-25
IT1211728B (en) 1989-11-03
IT8748312A0 (en) 1987-08-19
FI873607A0 (en) 1987-08-20
DK432787D0 (en) 1987-08-19
GB2195163A (en) 1988-03-30
GB8719675D0 (en) 1987-09-30
DK432787A (en) 1988-02-22
FI873607A (en) 1988-02-22

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Effective date: 19900301