WO1994011667A1 - Insulation of pipe elbows - Google Patents

Insulation of pipe elbows Download PDF

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Publication number
WO1994011667A1
WO1994011667A1 PCT/SE1993/000921 SE9300921W WO9411667A1 WO 1994011667 A1 WO1994011667 A1 WO 1994011667A1 SE 9300921 W SE9300921 W SE 9300921W WO 9411667 A1 WO9411667 A1 WO 9411667A1
Authority
WO
WIPO (PCT)
Prior art keywords
mineral wool
product
wool product
pipe
product according
Prior art date
Application number
PCT/SE1993/000921
Other languages
French (fr)
Inventor
Per-Olov Lundkvist
Original Assignee
Rockwool Aktiebolaget
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 Rockwool Aktiebolaget filed Critical Rockwool Aktiebolaget
Priority to AU54378/94A priority Critical patent/AU5437894A/en
Publication of WO1994011667A1 publication Critical patent/WO1994011667A1/en

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
    • F16L59/22—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for bends

Definitions

  • Pipe bowls Semi-cylindrical pipe insulations, in the following referred to as "pipe bowls", are often used as insulation means for pipes and conduits of various types. Such pipe bowls comprise a pre-shaped insulation material wich is often formed with surface coverings.
  • the pipe bowls are cylindrical and have a hollow space along the longitudinal axis thereof. The hollow space has substantially the same diameter as the outer diameter of the pip to be insulated. For this reason pipe bowls are manufactured with many various dimensions in order to fit pipes of various dimensions. It is easy to insulate straight pipes or tubings as mentioned above, but when pipes are bent so that they are formed with pipe bendings or elbows it is, indeed, more difficult to insulate same.
  • pre-formed insulation products which often comprise two semi-cylindrical product halves which are applied round the pipe elbow and is kept together in a suitable way. Thereafter the insulation product is often covered with a surface covering. Since the insulation products are pre- shaped they only fit pipe elbows of a predetermined diameter and curvatur radius. This means that users, deliverers and manufacturers have to keep a large number of various insulation products, having various dimensions, in stock for insulation of pipe elbows. Such insulation products also are relatively expensive.
  • the present invention relates such an insulation product and to a method of using same.
  • the product comprises a shapeable mineral wool product which in enclosed in a casing.
  • said product is applied to the pipe elbow and is fold thereabout, whereupon the two ends of the mineral wool product are interconnected in a suitable way.
  • Tubings or pipings are sometimes insulated in that straight parts of the pipings are firstly formed with semi-cylindrical pipe insulations, called pipe insulation bowls, and thereafter the actual pipe elbow is insulated. Sometimes it is considered suitable to firstly apply the insulation on the pipe elbow and thereafter to apply insulation pipe bowls on the the straight pping portions. Sometimes it also may be advicable to apply the insulation means in an order of turns, namely to firstly provide the insulation on a straight piping portion by means of insulation pipe bowls, thereafter to provide an insulation on the pipe elbow, then to provide an insulation of th succeeding straight piping portion.
  • the product according to the invention is so easily shapeable that it can be shaped both if present in the space appearing between the pipe insulation bowls, and it may be compressed over one insulation bowl or both pipe insulation bowls which are beeing applied after the pipe elbow has been insulated.
  • the casing therefore is filled with a flexible mineral fibre material like mineral granules or flocks, in other words with mineral wool fibres having a substantial freedom of movement in relation to each other.
  • the casing alternatively can be filled with an integral piece of compressed, felted mineral wool fibres, preferably fibres bonded by a binder which to some extent makes the structure fixed.
  • the mineral wool product can be formed in various ways. It can be rectangular, it may have its greatest width at the middle thereof and may taper towards the ends or the short sides thereof, and it may be formed with lugs or similar means for keeping the product secured round the pipe elbow.
  • the product It is of advantage to form the product so that it has its greatest width at the middle thereof, since it is thereby easier to apply the product round the pipe elbow, in particular since the casing is filled with compressed, felted mineral wool fibres.
  • the widest portion of the product must have a greater width than the length of the greatest arc presented by the pipe elbow, More exactly said width must be at least as great as the arc presented by the pipe elbow with the insulation applied thereon.
  • the insulation product must be formed so as to well fill up the the space between adjacent pipe bowls extending as far as to the pipe elbow.
  • the insulation product must be at least as long as the periphery of the largest dimension for which the product is to be used including the pip insulation, so as to fill out the space between the pipe bowls extending as far as to the pipe elbow.
  • the product comprises a casing and a pre-shaped mineral wool felt
  • said casing preferably can be of a shrinking plastic material. The product thereby gets its final appearance after the pre-shaped mineral wool felt has been placed in the casing and the product has thereafter been heat treated.
  • the ends of the mineral wool product can be kept together in various ways, for instance by using a tie wire which is wound round the pipe elbo insulation or by means of adhesive tapes.
  • a tie wire which is wound round the pipe elbo insulation or by means of adhesive tapes.
  • one end or both ends of the mineral wool product can be formed with an interconnection means, e.g. in the form of adhesive tapes which on the adhesive side thereof has a protective strip.
  • Another way of keeping the insulation products on the pipe elbow is to apply a flexible, pre-shaped surface covering over the extior side of the insulation product, which covering will thereby keep the insulation product together round the pipe elbow at the same time as it covers the insulation product.
  • Figures 1 , 2 and 3 are plan views of three different mineral wool products according to the invention.
  • Figure 4 illustrates the method of applying such a mineral wool product on a pipe.
  • Figure 5 shows the insulation product of figure 4 applied round a pipe, and figure 6 shows the insulation additionally having a surface covering.
  • Figures 7, 8 and 9 illustrate, in thre consecutive views, the method of applying an insulation round a pipe elbow.
  • Figure 1 discloses an embodiment of the product comprising a casing 1 having a mass shapeable mineral wool povided therein.
  • the short sides 2 and 3 of the product are formed with necks.
  • the intermediate piece 4 of the product, in between the necks 2 and 3, is arranged so that the width thereof increases from one of the necks towards the centre of the intermediate piece 4 and from there decreases towards the second neck.
  • the product may be formed with one neck only.
  • the advantage of having one or more necks is that it is possible to seize said necks by the hand when the product is applied to a pipe elbow, and at the same time said neck or necks form an overlapping portion when moved together.
  • the neck or necks further can be formed with an joining means like an adhesive tape having a protective strip coating over the outer adhesive side thereof. After the insulation product has been applied round the pipe elbow the protective strip is removed and the adhesive tape will stick to the insulation product.
  • Figure 2 shows another embodiment of the product according to the invention having narrow short sides 5 and 6.
  • the width of the product increases successively from one short side 5 to a maximum width between the points 7 and 7' and from there decreases towards the other short side 6.
  • the casing can be made of a shinking plastic material.
  • the product threreby gets its final shape by being subjected to a heat treatment after the mineral wool piece has been applied in said casing.
  • the advantage of using a product of the illustrated shape is that it is easy to join the short sides 5 and 6 at the inner arc of the pipe elbow.
  • the short sides are formed with interconnection means in the form of adhesive tapes 8 having protective strips on the outer adhesive sides therof. It is not necessary that both short sides are formed with adhesive tapes, but it is sufficient that only one short side has such adhesive tape.
  • Figure 3 shows a further embodiment of the product.
  • a plastic casing which is formed with welds 9-12 or similar means for giving the product the intended shape.
  • welds 9-12 of the casing In between the welds 9-12 of the casing there is a mass of shapeable mineral wool.
  • the corner pieces 13-1 6 of the casing are not removed but are allowed to remain, in spite that they do not contain any insulation material. Said corner pieces 13-1 6 can easily be fold in during the mounting of the product.
  • By keeping the corner pieces 13-16 of the product it is possible to make use of same i connection to the mounting of the product in that it is easy to seize the non-filled corner pieces. Also the manufacturing costs can be reduced. Also in this embodument is preferred to form the product with interconnection means 17.
  • Figure 4 illustrateates how to use the product in connection to insulating a pipe elbow.
  • a pipe 18 is placed on a mineral wool product 19.
  • the two ends 20 and 21 of the mineral wool product 19 are fold up towards the pipe 18 in the direction of the arrows 22 and 23 so that the mineral wool product 19 encloses the pipe 18 as shown in figure 4.
  • the ends 20 and 21 may meet edge to edge or may overlap each other.
  • the protective strips of the adhesive tapes 24 and 25 are removed so that said tape may stick to the mineral wool product.
  • Figure 5 shows the mineral wool product 19, which encloses the pipe 18, kept together thereon by means of an adhesive tape 24 or 25.
  • the overlap 26 is shown diagrammatically.
  • a surface covering 27 has been applied over the mineral wool product 19. In case such a surface covering is used there is no need for using separate interconnection means for keeping the mineral wool product 19 secured round the pipe 18.
  • Figure 7 shows a pipe elbow 28 which is to be insulated by means of a mineral wool product.
  • the mineral wool product 31 is to be mounted in between said pipe bowls 29 and 30 and shown in figure 8.
  • the short sides 32 and 33 of the product are moved towards each other so as to enclose the pipe elbow.
  • the corner pieces 34 are forced to a position between the pipe bowls 29 and 30.
  • the space between the pipe bowls29 and 30 should be complete filled out.
  • the two short sides 32 and 33 which abut each other or overlap each other are interconnected by means of interconnection means 35 and 36.
  • FIG. 9 shows a ready insulated pipe elbow. Said figure shows both the ready mounted mineral wool product 31 according to the invention and the two pipe bowls 29 and 30 on opposite sides of the pipe elbow.
  • the pipe bowls were firstly applied on the straight pipe portions and thereafter the mineral wool product was forced into the space in between said pipe bowls.
  • Another way of insulating the piping is to firstly apply the mineral wool product of the invention onto the pipe elbow and to thereafter apply the pipe bowls on opposite sides of the mineral wool product.
  • a still further way of insulating the piping is to firstly apply one pipe bowl on a straight pipe portion, thereafter to apply the mineral wool product of the invention over the pipe elbow, and finally to apply the second pipe bowl on the succeeding straight pipe portion. In what turn of order the pipe bowls and the mineral wool product of the invention are applied depends on what is most preferable for the actual occasion.

Landscapes

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

Abstract

The invention relates to a mineral wool product for insulating pipe elbows or similar objects, comprising a shapeable mineral wool mass which is enclosed in a casing. The invention also relates to a method of insulating pipe elbows by means of such a product.

Description

INSULATION OF PIPE ELBOWS
Semi-cylindrical pipe insulations, in the following referred to as "pipe bowls", are often used as insulation means for pipes and conduits of various types. Such pipe bowls comprise a pre-shaped insulation material wich is often formed with surface coverings. The pipe bowls are cylindrical and have a hollow space along the longitudinal axis thereof. The hollow space has substantially the same diameter as the outer diameter of the pip to be insulated. For this reason pipe bowls are manufactured with many various dimensions in order to fit pipes of various dimensions. It is easy to insulate straight pipes or tubings as mentioned above, but when pipes are bent so that they are formed with pipe bendings or elbows it is, indeed, more difficult to insulate same.
For making it possible to insulate pipe elbows or curved pipes there i likewise used pre-formed insulation products, which often comprise two semi-cylindrical product halves which are applied round the pipe elbow and is kept together in a suitable way. Thereafter the insulation product is often covered with a surface covering. Since the insulation products are pre- shaped they only fit pipe elbows of a predetermined diameter and curvatur radius. This means that users, deliverers and manufacturers have to keep a large number of various insulation products, having various dimensions, in stock for insulation of pipe elbows. Such insulation products also are relatively expensive.
An insulation product which is useful for pipe elbows having various dimensions should solve many problems.
The present invention relates such an insulation product and to a method of using same. The product comprises a shapeable mineral wool product which in enclosed in a casing. When providing an insulation on a pipe elbow by means of the mineral wool product according to the invention said product is applied to the pipe elbow and is fold thereabout, whereupon the two ends of the mineral wool product are interconnected in a suitable way.
Upon mounting of the mineral wool product there may appear folds and other unevenesses, but this is of minor importance since they do not influence the insulation property of the product. Since a surface covering is often applied to the exterior of the product such unevenesses will be hidden thereunder. If there is used a surface covering such covering also can be used for keeping the insulation product secured round the pipe elbow and no other holding means are needed.
Tubings or pipings are sometimes insulated in that straight parts of the pipings are firstly formed with semi-cylindrical pipe insulations, called pipe insulation bowls, and thereafter the actual pipe elbow is insulated. Sometimes it is considered suitable to firstly apply the insulation on the pipe elbow and thereafter to apply insulation pipe bowls on the the straight pping portions. Sometimes it also may be advicable to apply the insulation means in an order of turns, namely to firstly provide the insulation on a straight piping portion by means of insulation pipe bowls, thereafter to provide an insulation on the pipe elbow, then to provide an insulation of th succeeding straight piping portion. Is it actually of no importance in what order that the pipe elbow is being insulated, since the product according to the invention is so easily shapeable that it can be shaped both if present in the space appearing between the pipe insulation bowls, and it may be compressed over one insulation bowl or both pipe insulation bowls which are beeing applied after the pipe elbow has been insulated.
In order to foresee that the insulation product is shapeable the casing therefore is filled with a flexible mineral fibre material like mineral granules or flocks, in other words with mineral wool fibres having a substantial freedom of movement in relation to each other.
The casing alternatively can be filled with an integral piece of compressed, felted mineral wool fibres, preferably fibres bonded by a binder which to some extent makes the structure fixed.
The mineral wool product can be formed in various ways. It can be rectangular, it may have its greatest width at the middle thereof and may taper towards the ends or the short sides thereof, and it may be formed with lugs or similar means for keeping the product secured round the pipe elbow.
It is of advantage to form the product so that it has its greatest width at the middle thereof, since it is thereby easier to apply the product round the pipe elbow, in particular since the casing is filled with compressed, felted mineral wool fibres. The widest portion of the product must have a greater width than the length of the greatest arc presented by the pipe elbow, More exactly said width must be at least as great as the arc presented by the pipe elbow with the insulation applied thereon. Thus, the insulation product must be formed so as to well fill up the the space between adjacent pipe bowls extending as far as to the pipe elbow.
The insulation product must be at least as long as the periphery of the largest dimension for which the product is to be used including the pip insulation, so as to fill out the space between the pipe bowls extending as far as to the pipe elbow.
In case the product comprises a casing and a pre-shaped mineral wool felt said casing preferably can be of a shrinking plastic material. The product thereby gets its final appearance after the pre-shaped mineral wool felt has been placed in the casing and the product has thereafter been heat treated.
The ends of the mineral wool product can be kept together in various ways, for instance by using a tie wire which is wound round the pipe elbo insulation or by means of adhesive tapes. Eventually one end or both ends of the mineral wool product can be formed with an interconnection means, e.g. in the form of adhesive tapes which on the adhesive side thereof has a protective strip.
Another way of keeping the insulation products on the pipe elbow is to apply a flexible, pre-shaped surface covering over the extior side of the insulation product, which covering will thereby keep the insulation product together round the pipe elbow at the same time as it covers the insulation product.
Now the invention is to be described with reference to the appended figures 1 -5 which show some examples of various embodiments of the mineral wool product and how to make use of same.
Figures 1 , 2 and 3 are plan views of three different mineral wool products according to the invention. Figure 4 illustrates the method of applying such a mineral wool product on a pipe. Figure 5 shows the insulation product of figure 4 applied round a pipe, and figure 6 shows the insulation additionally having a surface covering. Figures 7, 8 and 9 illustrate, in thre consecutive views, the method of applying an insulation round a pipe elbow. Figure 1 discloses an embodiment of the product comprising a casing 1 having a mass shapeable mineral wool povided therein. The short sides 2 and 3 of the product are formed with necks. The intermediate piece 4 of the product, in between the necks 2 and 3, is arranged so that the width thereof increases from one of the necks towards the centre of the intermediate piece 4 and from there decreases towards the second neck. The product may be formed with one neck only. The advantage of having one or more necks is that it is possible to seize said necks by the hand when the product is applied to a pipe elbow, and at the same time said neck or necks form an overlapping portion when moved together. The neck or necks further can be formed with an joining means like an adhesive tape having a protective strip coating over the outer adhesive side thereof. After the insulation product has been applied round the pipe elbow the protective strip is removed and the adhesive tape will stick to the insulation product.
Figure 2 shows another embodiment of the product according to the invention having narrow short sides 5 and 6. The width of the product increases successively from one short side 5 to a maximum width between the points 7 and 7' and from there decreases towards the other short side 6. If there is used an integral piece of mineral wool fibres the casing can be made of a shinking plastic material. The product threreby gets its final shape by being subjected to a heat treatment after the mineral wool piece has been applied in said casing. The advantage of using a product of the illustrated shape is that it is easy to join the short sides 5 and 6 at the inner arc of the pipe elbow. In the illustrated case the short sides are formed with interconnection means in the form of adhesive tapes 8 having protective strips on the outer adhesive sides therof. It is not necessary that both short sides are formed with adhesive tapes, but it is sufficient that only one short side has such adhesive tape.
Figure 3 shows a further embodiment of the product. In this case there is used a plastic casing which is formed with welds 9-12 or similar means for giving the product the intended shape. In between the welds 9-12 of the casing there is a mass of shapeable mineral wool. The corner pieces 13-1 6 of the casing are not removed but are allowed to remain, in spite that they do not contain any insulation material. Said corner pieces 13-1 6 can easily be fold in during the mounting of the product. By keeping the corner pieces 13-16 of the product it is possible to make use of same i connection to the mounting of the product in that it is easy to seize the non-filled corner pieces. Also the manufacturing costs can be reduced. Also in this embodument is preferred to form the product with interconnection means 17.
Figure 4 ilustrates how to use the product in connection to insulating a pipe elbow. A pipe 18 is placed on a mineral wool product 19. The two ends 20 and 21 of the mineral wool product 19 are fold up towards the pipe 18 in the direction of the arrows 22 and 23 so that the mineral wool product 19 encloses the pipe 18 as shown in figure 4. The ends 20 and 21 may meet edge to edge or may overlap each other. For keeping the two ends together the protective strips of the adhesive tapes 24 and 25 are removed so that said tape may stick to the mineral wool product. Figure 5 shows the mineral wool product 19, which encloses the pipe 18, kept together thereon by means of an adhesive tape 24 or 25. Also the overlap 26 is shown diagrammatically. In figure 6 a surface covering 27 has been applied over the mineral wool product 19. In case such a surface covering is used there is no need for using separate interconnection means for keeping the mineral wool product 19 secured round the pipe 18.
Figure 7 shows a pipe elbow 28 which is to be insulated by means of a mineral wool product. On both sides of the pipe elbow there are straight pipe portions (not shown) which are covered with pipe bowls 29 and 30. The mineral wool product 31 is to be mounted in between said pipe bowls 29 and 30 and shown in figure 8. The short sides 32 and 33 of the product are moved towards each other so as to enclose the pipe elbow. At the same time the corner pieces 34 are forced to a position between the pipe bowls 29 and 30. After the mineral wool product 31 has been finally mounted the space between the pipe bowls29 and 30 should be complete filled out. Thereafter the two short sides 32 and 33 which abut each other or overlap each other are interconnected by means of interconnection means 35 and 36.
When the mineral wool product is in place on the pipe elbow a surface covering of the same type as the surface covering on the pipe bowls, if they have such a surface covering, can be applied exteriorly of the mineral wool product. Figure 9, finally, shows a ready insulated pipe elbow. Said figure shows both the ready mounted mineral wool product 31 according to the invention and the two pipe bowls 29 and 30 on opposite sides of the pipe elbow.
In the illustrated embodiment the pipe bowls were firstly applied on the straight pipe portions and thereafter the mineral wool product was forced into the space in between said pipe bowls. Another way of insulating the piping is to firstly apply the mineral wool product of the invention onto the pipe elbow and to thereafter apply the pipe bowls on opposite sides of the mineral wool product. A still further way of insulating the piping is to firstly apply one pipe bowl on a straight pipe portion, thereafter to apply the mineral wool product of the invention over the pipe elbow, and finally to apply the second pipe bowl on the succeeding straight pipe portion. In what turn of order the pipe bowls and the mineral wool product of the invention are applied depends on what is most preferable for the actual occasion.

Claims

C L A I M S
1. The present invention relates to a mineral wool product for insulating of pipe elbows and similar objects, characterized in that the mineral wool product comprises shapeable mineral wool mass which is enclosed in a casing (1 ).
2. A mineral wool product according to claim 1 , characterized in tha the mineral wool mass consists of granules or flocks of mineral wool fibres having a substantial freedom of movement in relation to each other.
3. A mineral wool product according to claim 1 , characterized in tha the mineral wool mass comprises an integral piece of compressed, felted mineral wool fibres which are preferably bonded by a binder which to some extent fixes the structure of the mineral wool.
4. A mineral wool product according to claims 1-3, characterized in that the product is rectangular.
5. A mineral wool product according to claims 1-3, characterized in that the product is widest at the middle (4; 7, 7') thereof and tapers towards the two ends or short sides (2, 3; 5, 6).
6. A mineral wool product according to claims 1-5, characterized in that one of the short sides or both short sides (2, 3; 5, 6) has an interconnection means (8; 17), for instance an adhesive tape having a protective strip on its outer adhesive surface.
7. A method of insulating pipe elbows by means of a mineral wool product according to claims 1-6, characterized in that the mineral wool product is appled to the pipe elbow (28) and is fold round same, whereupon the two ends of the mineral wool product are moved together and are joined.
8. A method according to claims 7, characterized in that a surface covering (27) is applied exteriorly of the mineral wool product.
9. A method according to claim 7, characterized in that the mineral wool product is kept tegether, or is joined, for instance by means of tape. AMENDED CLAIMS
[received by the International Bureau on 15 March 1994 (15.03.94) ; original claim 1 amended; other claims unchanged ( 1 page) ]
1 . The present invention relates to a mineral wool product for insulating of pipe elbows and similar objects, characterized in that the mineral wool product is even and comprises a shapeable mineral wool mas which is enclosed in a casing (1 ) .
2. A mineral wool product according to claim 1 , characterized in tha the mineral wool mass consists of granules or flocks of mineral wool fibres having a substantial freedom of movement in relation to each other.
3. A mineral wool product according to claim 1 , characterized in tha the mineral wool mass comprises an integral piece of compressed, felted mineral wool fibres which are preferably bonded by a binder which to some extent fixes the structure of the mineral wool.
4. A mineral wool product according to claims 1 -3, characterized in that the product is rectangular.
5. A mineral wool product according to claims 1 -3, characterized in that the product is widest at the middle (4; 7, 7') thereof and tapers towards the two ends or short sides (2, 3; 5, 6) of the product.
6. A mineral wool product according to claims 1 -5, characterized in that one of the short sides or both short sides (2, 3; 5, 6) has an interconnection means (8; 17), for instance an adhesive tape having a protective strip on its outer adhesive surface.
7. A method of insulating pipe elbows by means of a mineral wool product according to claims 1 -6, characterized in that the mineral wool product is appled on the pipe elbow (28) and is fold round same, whereupon the two ends of the mineral wool product are moved together and are joined.
8. A method according to claims 7, characterized in that a surface covering (27) is applied exteriorly of the mineral wool product.
9. A method according to claim 7, characterized in that the mineral wool product is kept tegether, or is joined, for instance by means of tape.
PCT/SE1993/000921 1992-11-09 1993-11-04 Insulation of pipe elbows WO1994011667A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54378/94A AU5437894A (en) 1992-11-09 1993-11-04 Insulation of pipe elbows

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9203328-1 1992-11-09
SE9203328A SE500510C2 (en) 1992-11-09 1992-11-09 Mineral wool product for insulation of pipe bends and ways to insulate pipe bends with such a product

Publications (1)

Publication Number Publication Date
WO1994011667A1 true WO1994011667A1 (en) 1994-05-26

Family

ID=20387738

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1993/000921 WO1994011667A1 (en) 1992-11-09 1993-11-04 Insulation of pipe elbows

Country Status (3)

Country Link
AU (1) AU5437894A (en)
SE (1) SE500510C2 (en)
WO (1) WO1994011667A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997001060A1 (en) * 1995-06-22 1997-01-09 Rockwool International A/S Process and apparatus for the preparation of a tubular sheathing of mineral fibres for insulation purposes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105715914A (en) * 2016-03-18 2016-06-29 上海熠翌节能技术有限公司 Insulation sleeve for engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205105A (en) * 1977-01-21 1980-05-27 P. H. Thermal Products Limited Pipe insulation
US4584217A (en) * 1977-09-29 1986-04-22 Morgan Adhesives Company Composite pressure sensitive adhesive construction
EP0290677A1 (en) * 1987-05-14 1988-11-17 Theodor Pecha Process for the insulation of construction parts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205105A (en) * 1977-01-21 1980-05-27 P. H. Thermal Products Limited Pipe insulation
US4584217A (en) * 1977-09-29 1986-04-22 Morgan Adhesives Company Composite pressure sensitive adhesive construction
EP0290677A1 (en) * 1987-05-14 1988-11-17 Theodor Pecha Process for the insulation of construction parts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997001060A1 (en) * 1995-06-22 1997-01-09 Rockwool International A/S Process and apparatus for the preparation of a tubular sheathing of mineral fibres for insulation purposes

Also Published As

Publication number Publication date
AU5437894A (en) 1994-06-08
SE9203328D0 (en) 1992-11-09
SE9203328L (en) 1994-05-10
SE500510C2 (en) 1994-07-11

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