April 2021 Vol. 3

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

Global News on Plastic Piping and Fittings

NEWSMAKERS: * Aliaxis * Dura Plastics * ExcelPlas  * GF Piping * PE100 * PERT * PEXa * Pipeline Plastics  * PPN * Polybutylene Pipes * PP-R Pipe Failure  * Rehau * RWC * Sharkbite™ * Tigre USA * Uponor


PEXa versus PERT – There is No Comparison Says Rehau Who Say PERT is “Simply an Over-stabilized HDPE” with a Limited Track Record of Only 3-5 and therefore High Risk

Robot-Delivered Pipe-Strengthening Technology to Tackle Aging Water Infrastructure

Government Grants Available for Australian Poly Pipe Manufacturers

GF Piping Systems’ INSTAFLEX™ Polybutylene (PB) Piping Reference Case Study

Brazilian Pipe Maker Buys US Fittings Manufacturer
Tigre-USA Inc., a unit of Brazilian pipe maker Tigre Group S.A., has acquired PVC pipe fittings manufacturer Dura Plastic Products

First Large-Scale Use of Uponor PP-RCT and PEXa in North America for Snow-Melt Installation Walkway

Sharkbite Develop Fittings for Transition from Polybutylene pipe to PEX, copper, PE-RT or HDPE Pipe

GF Piping Systems’ Cooperation with the Helsinki Region Environmental Services Authority

Cooling Tower Efficiency Boosts Bottom Line for Plastic Pipe Manufacturer

ESDF Opens Another Pipe Manufacturing Line

City Council Discusses Using HDPE Pipe Instead of Copper

South Gippsland Water Initiative Recycling PVC Pipes


Can PP-R Pipes be Combined with Copper Piping?

Effect of Copper Ions on PP-R Pipes


Burst Pressure of Glass Fibre Tape Reinforced Polyethylene Pipes with Interlayer Delamination Defect

Studies and Research on the Behaviour of Polyethylene when Electrofusion Welding Fittings to High Density Polyethylene Pipes
https://revmaterialeplastice.ro/pdf/10 AVRIGEAN 1 21.pdf

Reliability And Cost-effectiveness Of Polymer Pipes


ExcelPlas Offers ‘One Stop Shop’ for Plastic Pipe Testing Services:

  • Tensile strength for butt fusion – ISO13953
  • Ring stiffness PE pipes – ISO9969
  • Ring stiffness GRP pipes – ISO7685
  • Carbon black content – ISO6964
  • Pigment or Carbon black dispersion – ISO1855
  • Dimension / Geometrical – ISO3126
  • Flexural modulus – ISO178
  • Charpy impact pipe – ISO9854
  • Mechanical testing
  • Environmental exposure testing
  • Recycling evaluations
  • Failure analysis
  • Third party testing and verification
  • Pigment dispersion and homogeneity
  • Raw material quality vs. gels
  • Thickness distribution of the profile
  • Presence of notches in the tube profile
  • Stress-crack resistance
  • UV testing


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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.

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.

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.

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

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.

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

New UHMWPE Pipe for Tailing Offers Greater Than 4X the Abrasion Resistance of PE100 (Australia wide)

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 [email protected]

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