PL201822B1 - Heat-shrinkable HDPE polyethylene sleeve with glue, particularly for pre-insulated pipes - Google Patents
Heat-shrinkable HDPE polyethylene sleeve with glue, particularly for pre-insulated pipesInfo
- Publication number
- PL201822B1 PL201822B1 PL353519A PL35351902A PL201822B1 PL 201822 B1 PL201822 B1 PL 201822B1 PL 353519 A PL353519 A PL 353519A PL 35351902 A PL35351902 A PL 35351902A PL 201822 B1 PL201822 B1 PL 201822B1
- Authority
- PL
- Poland
- Prior art keywords
- heat
- shrinkable
- sleeve
- glue
- insulated pipes
- Prior art date
Links
Landscapes
- Cable Accessories (AREA)
Abstract
1. Nasuwka termokurczliwa z polietylenu HDPE zwłaszcza do rur preizolowanych, znamienna tym, że końce nasuwki są fazowane, a od wewnątrz końce nasuwki wyłożone są warstwą kleju termotopliwego.1. Heat-shrinkable sleeve made of HDPE polyethylene, especially for pre-insulated pipes, characterized in that the ends of the sleeve are beveled and the ends of the sleeve are lined with a layer of hot-melt adhesive on the inside.
Description
Opis wynalazkuDescription of the invention
Przedmiotem wynalazku jest nasuwka termokurczliwa z klejem przeznaczona do wykonywania izolacji i hermetyzacji zespołu złącza zwłaszcza rur preizolowanych.The subject of the invention is a heat-shrinkable sleeve with an adhesive, intended for insulation and hermetization of a joint assembly, especially pre-insulated pipes.
Obecnie stosowane nasuwki termokurczliwe zwane też mufami termokurczliwymi są to rozszerzone kawałki tego samego tworzywa sztucznego jak rury płaszczowe rur preizolowanych tj. polietylenu HDPE.Currently used heat-shrinkable sleeves, also known as heat-shrinkable sleeves, are expanded pieces of the same plastic as the jacket pipes of pre-insulated pipes, i.e. HDPE polyethylene.
Wykorzystywane jest tu tzw. zjawisko „pamięci” HDPE które powoduje, że rozszerzona nasuwka „pamięta” swoją wstępną średnicę, do której wraca po podgrzaniu.The so-called HDPE "memory" phenomenon, which causes the expanded sleeve to "remember" its initial diameter, to which it returns after heating.
Obecnie nasuwki termokurczliwe wykonywane są w wersji bez kleju lub końce nasuwki od wewnątrz pokryte są klejem adhezyjnym stworzonym na bazie bitumu lub butylokauczuku charakterystycznego czarnego koloru.Currently, heat-shrinkable sleeves are made in a version without glue, or the ends of the sleeve are covered on the inside with an adhesive glue based on bitumen or butyl rubber in a characteristic black color.
W celu speł nienia obostrzeń wynikają cych z normy PN-EN 489 do powyż szych nasuwek należ y stosować dodatkowe uszczelnienia. Są to zazwyczaj pasy miękkiego, termokurczliwego polietylenu pokrytego od wewnątrz klejem termotopliwym, wykonanego w formie opasek termokurczliwych lub taśm termokurczliwych.In order to meet the restrictions resulting from the PN-EN 489 standard, additional seals should be used for the above sleeves. These are usually strips of soft, heat-shrinkable polyethylene covered on the inside with hot-melt adhesive, made in the form of heat-shrinkable bands or heat-shrinkable tapes.
Nasuwka termokurczliwa według wynalazku to ta sama nasuwka termokurczliwa wykonana z rozszerzonej rury HDPE której końce od wewnątrz wyłożone są na szerokości 8 - 10 cm warstwą kleju termotopliwego o grubości 0,6 mm, tym samym który stosowny jest do opasek i taśm termokurczliwych.The heat-shrinkable sleeve according to the invention is the same heat-shrinkable sleeve made of an expanded HDPE pipe, the ends of which are lined on the inside at a width of 8-10 cm with a layer of hot-melt adhesive 0.6 mm thick, the same which is used for heat-shrinkable bands and tapes.
Końce nasuwki posiadają jednocześnie kilkumilimetrową fazkę po obwodzie nasuwki.The ends of the sleeve have a chamfer of several millimeters around the circumference of the sleeve.
Wykonana fazka powoduje, że przejście pomiędzy rurą płaszczową elementu preizolowanego a nasuwką jest gł adkie.The made chamfer makes the transition between the casing pipe of the pre-insulated element and the sleeve smooth.
Zastosowanie kleju termotopliwego powoduje, że nasuwka jest szczelna oraz jest w stanie przenosić naprężenia.The use of hot-melt glue makes the sleeve tight and able to transmit stresses.
Uzyskane w ten sposób złącze spełnia wszystkie warunki normy PN-EN 489.The joint obtained in this way meets all the requirements of PN-EN 489.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL353519A PL201822B1 (en) | 2002-04-19 | 2002-04-19 | Heat-shrinkable HDPE polyethylene sleeve with glue, particularly for pre-insulated pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL353519A PL201822B1 (en) | 2002-04-19 | 2002-04-19 | Heat-shrinkable HDPE polyethylene sleeve with glue, particularly for pre-insulated pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL353519A1 PL353519A1 (en) | 2003-10-20 |
| PL201822B1 true PL201822B1 (en) | 2009-05-29 |
Family
ID=29776247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL353519A PL201822B1 (en) | 2002-04-19 | 2002-04-19 | Heat-shrinkable HDPE polyethylene sleeve with glue, particularly for pre-insulated pipes |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL201822B1 (en) |
-
2002
- 2002-04-19 PL PL353519A patent/PL201822B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL353519A1 (en) | 2003-10-20 |
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