February 2020 Vol. 3

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PPN- The Leading Source of Industry News on Polymer Pipes and Plastic Pipe Failure


NEWSMAKERS: * AGRU * Aquatherm * ASTM * ExcelPlas  * McElroy * Star Piping * Uponor 

Effect of Chlorine Dioxide Biocides on PP-R Pipes
https://pdfs.semanticscholar.org/6971/272a86fbfa7c892ee80615be22574d5b3cbb.pdf

PEX Piping Practices Advance Hydronic Installations
https://www.achrnews.com/articles/142679-piping-practices-advance-hydronic-installations

Landfill Leachate Pipe Failure Identified in NZ (Alert) (Breaking News)
https://www.wellingtonwater.co.nz/about-us/news/sludge-pipe-failure-points-under-mt-albert-identified/

Giant HDPE Pipe Replaces Steel for Outfall Project
https://www.plasticsnews.com/news/giant-hdpe-pipe-replaces-steel-outfall-project

Business for Sale – NDT of HDPE Butt Fusion Weld, Pipeline CQA includes all testing equipment and training ($35K ONO)
http://cloud.excelplas.com/s/9QxCLlNov56S93m
Expression of Interest please email info@excelplas.com

Major Appointment at McElroy for Pipe Fusion Product Development
https://www.pipelinesinternational.com/2020/02/25/major-appointment-at-mcelroy/

Sensitivity of Strain Hardening Modulus to Molecular Structure of Polyethylene
https://www.pe100plus.com/PPCA/Sensitivity-of-strain-hardening-modulus-to-molecular-structure-of-polyethylene-p1661.html

Impacts of Organic Matter Migrating from Plastic Pipe Materials on Microbial Regrowth in Drinking Water
https://www.jstage.jst.go.jp/article/jwet/18/1/18_19-078/_pdf/-char/ja

Modelling and Study of a Gasketed Bell and Spigot Joint in a Buried HDPE Pipeline
https://www.sciencedirect.com/science/article/abs/pii/S0886779819311071

Still Time Left to Replace Polybutylene Pipe
https://www.contractormag.com/home/article/20873397/still-time-left-to-replace-pb-pipe

Proposed ASTM Plastic PEX Pipe Standard aims to Support New Polymer and Lead-free Brass Fittings
https://www.contractormag.com/codes/article/20882623/proposed-astm-plastic-pipe-standard-aims-to-support-new-polymer-and-leadfree-brass-fittings

Proposed standard WK58343, Specification for Cold-Expansion Fittings with PEX CompressionSleeves for Crosslinked Polyethylene (PEX) Tubing, is currently being developed by ASTM International’s committee on plastic piping systems (F17). 
The standard would help support fittings and sleeves for PEX piping systems capable of high pressures and temperatures.
https://www.contractormag.com/codes/article/20882623/proposed-astm-plastic-pipe-standard-aims-to-support-new-polymer-and-leadfree-brass-fittings

Design of Plastic Pipes Considering Content of Recycled Material
https://www.sciencedirect.com/science/article/pii/S245232162030161X

Damage Evaluation and Protection Method of Polyethylene Gas pipe Subjected to Impact Load
https://journals.sagepub.com/doi/abs/10.1177/2041419620902791

Focus on Future Developments of Polymer Pipes at Plastic Pipes XX Conference and Exhibition to be held September 21 – 23, 2020 in Amsterdam
https://www.unitracc.com/aktuelles/news/focus-on-future-developments-at-pp-xx

Australia’s State-of-the-Art Plastic Pipe Testing Laboratory
ExcelPlas Laboratories provides a comprehensive plastic pipe & joint testing service and is equipped with a state of the art laboratory to test a range of polymer materials including polyethylene and polypropylene. ExcelPlas can carry out testing on plastic tube and pipe ranging in wall thickness from 3 mm to 80 mm. ExcelPlas Laboratories provide a comprehensive service to Industrial & commercial companies, environmental consultants, Government bodies and local Authority customers throughout Australia & NZ. All testing is carried and out in accordance with ISO & ASTM methods and is fully accredited to ISO 17025 by NATA.
http://www.excelplas.com/

An Investigation on the Influence of Void’s Shape, Distribution and Size to the Response of Glass-Reinforced Pipes During Impact
https://www.research.manchester.ac.uk/portal/files/159164550/FULL-TEXT.PDF

Uponor Annual Financial Report (Declassified)
https://investors.uponor.com/sites/default/files/reports/Uponor-Financial-Review-2019.pdf

Uponor Annual Review Report (Declassified)
https://investors.uponor.com/sites/default/files/reports/Uponor-Annual-Review-2019.pdf

Australian Poly Solutions Specialises in HDPE Pipe Fusion Welding and Hydrostatic Testing Services with Knowhow and Experience you can rely on
https://www.aussiepoly.com.au/

RITMO: APP – SET & GO! PRO Butt Fusion for Pressure Pipe
https://www.ritmo.it/en/butt-fusion-for-pressure-pipe/app-set-go-pro/
Video: https://youtu.be/YP4GmmBdufU


ExcelPlas Labs Pipe Failure Investigations
ExcelPlas Labs have created a new benchmark in failure analysis of HDPE, PP-R, PB and PEX pipes in addition to PVC &  CPVC pipes as well as composite GRP and GRE pipes.  When a plastic pipeline fails to perform as intended, our team can determine the root cause of failure (e.g.  oxidative failure, chemical failure, creep failure, over-stress failure, fatigue failure, design failure, etc).  ExcelPlas are experienced with all plastic piping failure modes and mechanisms including Slow Crack Growth (SCG) Rapid Crack Propagation (RCP), Environmental Stress Crack Resistance (ESCR), Oxidative Stress Cracking (OSC), cyclic fatigue, manufacturing defects, and polymer material problems.
http://www.excelplas.com/

ExcelPlas Strain Hardening Test (SHT) for HDPE Pipes
The SHT in accordance with ISO 18488 is a relatively new, but excellent way to obtain a rapid indication of the Stress Crack Growth (SCG) resistance of your piping material. This tensile test performed at 80°C has become in just a few years the new standard for Batch Release Testing (BRT). And not without reason.  The test requires only a very small amount of material, the results are very reliable with a very low inter-laboratory scatter and the results are available within a few days, regardless of the PE grade. The SHT is usually performed on resin material but it can also be performed on samples taken directly from pipes or sheets. As accredited lab, EXCELPLAS is happy to discuss the possibilities with you, whether it is for BRT, benchmarking, quality control of your (high performing) PE grade or for polymer compliance/ validation.
http://www.excelplas.com/

Australian Plastic Pipe Testing Laboratory
ExcelPlas Laboratories provides a comprehensive plastic pipe joint testing service and is equipped with a state of the art laboratory to test a range of polymer materials including polyethylene and polypropylene. ExcelPlas can carry out testing on plastic tube and pipe ranging in wall thickness from 3 mm to 80 mm. ExcelPlas Laboratories provide a comprehensive service to Industrial & commercial companies, environmental consultants, Government bodies and local Authority customers throughout Australia & NZ. All testing is carried and out in accordance with ISO & ASTM methods and is fully accredited to ISO 17025 by NATA.
http://www.excelplas.com/

Australia’s Plastic Pipe Testing Laboratory
ExcelPlas Laboratories provides a comprehensive plastic pipe joint testing service and is equipped with a state of the art laboratory to test a range of polymer materials including polyethylene and polypropylene. ExcelPlas can carry out testing on plastic tube and pipe ranging in wall thickness from 20mm to 1200mm. ExcelPlas Laboratories provide a comprehensive service to Industrial & commercial companies, environmental consultants, Government bodies and local Authority customers throughout Australia and Asia. 
All testing is carried and out in accordance with ASTM, ISO & WIS methods and is fully accredited to ISO 17025 by NATA.
• Butt Fusion Weld Testing
• Weld Testing
• Testing of Electro-fusion Welds
• Tear on saddle joints
• Crush De-cohesion of Electro-fusion welds
• Polymer & Plastics Identification
• Chemical & Thermal Testing
• Site Audits
http://www.excelplas.com/

ExcelPlas – the Australian Pipes & Fittings Testing Laboratory

  • Accredited to ISO 17025 by the National Association of Testing Authorities (NATA) Australia, and is Australia’s largest laboratory dedicated for the testing of plastic pipes and fittings to various Standards which include Australian, European and International Standards.
  • The staff employed at the laboratory have a combined experience of more than 85 years within the plastics industry specifically with manufacturing, quality control and the research and development of plastic piping systems including HDPE, PEX, PP-R, PVC, U-PVC, M-PVC, O-PVC, ABS, GRP, GRE and PB.
  • Services provided include conformance testing, compliance testing, batch release testing, root cause analysis for field failures and non-destructive testing of samples.
  • http://www.excelplas.com/

ExcelPlas Lab Specialising in HDPE Pipe Condition Monitoring, Failure Analysis and Testing
In the event of a HDPE buttweld or electrofusion weld failing during initial testing, or in service, we can conduct investigations to assist in identifying the root cause of the failure.
This service also extends to the premature failure of the pipe or fitting itself.
http://www.excelplas.com/plastic-pipes

ExcelPlas Pipe Testing is a Leader in the Field of Polyethylene (PE) and High-Density Polyethylene (HDPE) Testing
ExcelPlas is accredited with the National Association of Testing Authorities (NATA) for butt weld tests, bend and tensile tests, peel decohesion tests on electro fusion sockets and failure mode determination
http://www.polypipetesting.com.au/butt-fusion-welds/

New UHMWPE Pipe for Tailing Offers Greater Than 4X the Abrasion Resistance of PE100 (Australia wide)
http://slurrypipes.com.au/

ExcelPlas Poly Pipe Weld Inspection Lists Top 7 Causes of Weld Failure:
• Lack of scraping
• Inaccurate scraping
• Contamination from dirt, water, oil or clays
• Lack of Paralell-ness of fusion faces
• Misalignment of surfaces
• Time, temperature and pressure deviations
• Not adhering to cool times

We have extensive experience in inspection of poly pipe welds for assuring welded joint quality.  Direct Poly Pipe Inspection ensures that operators are following the proven welding procedure; this reduces the occurrences of operational errors which lead to defects such as inclusions, lack of fusion (LoF), porosity and misalignment.
More information, contact john@excelplas.com

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