High productivity butt fusion jointing of PE pipes [PE]

Author(s) : Mike Troughton, Amir Khamsehnezhad 2016 Berlin

 the inspection of butt fusion and electrofusion joints in polyethylene (PE) pipes. Depending on the technique and inspection procedure, various types of flaw, including discrete planar lack of fusion, particulate contamination, voids, cold fusions and pipe under-penetration can be detected. However, the usefulness...

Author(s) : Troughton Mike 2012 Barcelona

The current practice for assuring the quality of butt fusion and electrofusion welded joints during installation is by recording the welding parameters used, together with a visual inspection of the welded joint, supplemented by the destructive testing of welds on a sample basis using a short-term test. However,...

Author(s) : J.Bowman 2010 Vancouver

Polyethylene (PE) resins are known to be sensitive to both sunlight and high ambient temperatures, such that excessive exposure can degrade the material. The inclusion of stabiliser packages into the polymer controls this potential for damage from outdoor aging. Reported in this paper are results on the stability and...

Author(s) : Christodoulou, Wilson, Hunter, Bowman 2006 Washington DC

Polyethylene (PE) based and metallic pipe systems have been assessed for their ability to stop petrol migrating through the pipe wall, fitting or joint and into water contained within the pipe. A quantitative test was devised that is capable of distinguishing between the different pipe systems. Plain PE pipe...

Author(s) : Troughton, Brown, Hessel, Piovano 2006 Washington DC

As part of the Polytec Systems European-funded project, electrofusion (EF) joints in polyethylene (PE) pipe, containing different flaws, have been subjected to various standard and non-standard, long-term and short-term, coupon and whole pipe tests. The results were compared to determine which tests could...

Author(s) : Wood, Richards, Street, Muckle, Bowman 2006 Washington DC

For the movement of fuel gas and water, plastics pipes are dominant in many markets, and this success has been based on single material solid wall pipes. There are now an expanding number of multi-layered plastics pipes, and described here for the first time is the performance of the second-generation of skinned...

Author(s) : Hunter, Christodoulou, Greaves, Bowman, Bott 2004 Milan

The development of a pipe system designed to transport potable water through contaminated ‘brown-field land’ is described. The system is based around a multi-layer, aluminium reinforced PE pipe, and includes a full range of specially designed mechanical fittings to provide the end user with a total system...

Author(s) : Stokes, Potter, Metcalfe, Bowman, Graham 2001 Munich

The response of three different forms of polyvinyl chloride (PVC) pipe has been explored when the pipes had attached to them ferrule straps. Pipes were subjected to fluctuating internal pressure (fatigue) loading at 20°C, and the lifetimes, location of any failures and the types of failures recorded. Tests were...

Author(s) : Troughton 2001 Munich

This paper describes the development of an ultrasonic non-destructive examination (NDE) system that is incorporated into an automatic butt fusion welding machine and performs an examination of the joint within the cooling time of the welding cycle. The programme of work included the optimisation of the ultrasonic...

Author(s) : Hinchcliff, Troughton 1998 Gothenburg

There are a number of different mechanical test methods available to assess the quality of butt fusion welded joints in polyethylene (PE) pipes. However, little published information exists on the correlations that may or may not exist between the results from these methods. This paper compares the results from...