Our site uses cookies necessary for its proper functioning. To improve your experience, other cookies may be used: you can choose to disable them. This can be changed at any time via the Cookies link at the bottom of the page.


How will the Lifetime of Different Multi-Layer Pipes be Affected when Exposed to a Circulation Loop [PE]

 

Plastic Pipes Conference Association # 2004 Milan

Andersson

The lifetime of plastic pipes has been studied at Bodycote Polymer AB for more than 30 years. This paper will compare two test methodologies for evaluating multi-layer pipes. An attempt will be made to investigate antioxidant consumption as a function of exposure time for three different PE based multi-layer pipes exposed in a circulation loop, compared with the results from pipes that have been hydrostatically pressure tested. Preliminary lifetime predictions will be made allowing comparison between pipes exposed in a circulation loop and those hydrostatically pressure tested.

Please note that the whole article content is available on PPCA website only :

Related papers

2018 Las-Vegas : Large pressure pipe system – Fully PE100

Author(s) : Sverre Tragethon, Martin Andersson

Global mega trends push for investments in sewage treatment capacity & efficiency. A trend is to go for central regional treatment sites, typically remotely located from dense populated cities. This calls for high capacity pressure sewage transmission pipelines. Reliable operation is of course of paramount importance...

2012 Barcelona : Are methods for tightness testing fit for purpose?

Author(s) : Lars Jacobsson, Hans Andersson and Linda Karlsson

Problems sometimes occur in tightness testing of plastic pipelines using pressurized water and accounting for the diametrical expansion, particularly so for larger sizes and higher pressure rating. Pipelines that are in fact tight enough for acceptance are rejected when first tested. A study consisting of two parts...

2012 Barcelona : The functioning of flange joints - Findings from full scale experiments and fem analyses

Author(s) : Lars Jacobsson, Hans Andersson, Daniel Vennetti and Sven-Erik Sällberg

Leakages are reported in flange joints of large pipelines for water supply although mounted according to recommended practise. FEM analyses and full scale experiments have been performed in order to better understand the functioning of the joints. The objectives were to find out about the sensitivity to mounting and...

2010 Vancouver : Plastic pipe systems for petrol stations and beyond; stretching the boundaries of plastic pipe applications

Author(s) : Lars Selling and Ingrid Andersson, Christophe Salles and Lars Höjer

Kungsors Plast AB, in co-operation with Borealis, has pioneered the underground plastic piping for petrol filling stations with the first polyethylene piping used by Shell Sweden in 1981. The retail sector with petrol filling stations has used PE-based underground piping since the early 1980s. With increased...

2001 Munich : Which Factors Control the Lifetime of Plastics Pipes and How the Lifetime Can be Extrapolated

Author(s) : Andersson

The lifetime of plastic pipes has been studied at Bodycote Polymer AB (formerly Studsvik Polymer AB) for more than 27 years. This paper presents some of the factors found to control the lifetime of plastic pipes. How to extrapolate the lifetime of plastic pipes will be presented and discussed. A question will also be...

1998 Gothenburg : Results and Experiences from Tests on PEX, PP and PVC Pipes Exposed to Different Chemicals

Author(s) : Ifwarson, Andersson

This paper presents experimental data for PEX, PEM, PP and PVC pipes exposed to different chemicals. More than 150 plastic pipes of PEX, PEM, PP and PVC have been pressure tested with different chemicals. The chemicals used are; 97% Sulfuric acid, 100% Acetic acid, 30% Sodium hydroxide and a solution of 50%...

Members of the Association

BOREALISBOROUGEFormosa Plastics CorporationHanwha TotalEnergiesINEOS O&PIRPCKorea Petrochemical IND. Co., LTD (KPIC)LyondellBasellORLEN UnipetrolPetroChina Dushanzi Petrochemical CompanyPRIME POLYMERSABICSCG Chemicals & Thai PolyethyleneSinopecTASNEE