2016 Berlin : Close-fit Pipe Lining Without the Machines
Author(s) : Derek Muckle
It has long been the case that plastic pipes have been subject of folding operations in a factory and then supplied to site for use in pipeline renovation applications. The same cannot be said for pipes subject to diameter reduction as they have, as a principle, relied on being diameter reduced at site in a forming...
2006 Washington DC : An Effective Barrier Pipe System for Contaminated Land
Author(s) : Christodoulou, Wilson, Hunter, Bowman
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...
2001 Munich : Optimising the Performance of Ferrule Straps with PVC Pipes
Author(s) : Stokes, Potter, Metcalfe, Bowman, Graham
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 made...
1998 Gothenburg : A Flexible Solution for Renovation of Small Diameter Service Pipes
Author(s) : Morgan, Muckle, Scott
A three way partnership has resulted in the development of a new solution to the refurbishment
of old iron and steel gas service pipes. The solution which has been developed allows a flexible
polyethylene replacement pipe to be inserted into the old pipe system. This avoids the need for
the costly excavations or...
1995 Edinburgh : Enhancing the performance of Plastics Pipes, Fittings & Joints
Author(s) : Bowman
The many technologies associated with the production, installation and uses of
plastics pipes systems increase in their sophistication and diversity This paper
selects and reviews changes that have and are taking place with polyvinyl
chloride (PVC) and polyethylene (PE) pressure pipe systems designed for
1995 Edinburgh : High productivity butt fusion jointing of PE pipes
Author(s) : Cartwright, Troughton, Hinchcliff, Bowman, Jenkins
For the butt fusion joining of PE80 polyethylene pipes on site, long heat soak and
cooling times predominate in the United Kingdom and other countries. The
literature is reviewed to propose that these heat soak and cooling times can be
significantly reduced via the use of machines with verifiable, reduced short...
1992 Eindhoven : Erosive wear Mapping of Pipe Materials
Author(s) : Wood, Moore
The erosion of pipe materials in slurry flow streams occurs through a variety of wear processes. As a result, the comparative wear resistance of materials is extremely difficult to predict from a knowledge of basic physical and engineering properties. Design and selection criteria must hence be based on empirical...
1992 Eindhoven : Procedures of Quantifying the Strength of Electrofusion Joints
Author(s) : Bowman,Medhurst, Portas
For two sample shapes different procedures have been examined as methods to quickly and quantitatively assess the strength of electrofusion joints. It is shown that the peel test, specified in BS7336, can be added to in order to obtain a quantitative measure of joint strength either using the % ductility on the...
1988 Bath : The Fatigue Behaviour of Medium Density Polyethylene Pipe Systems
Author(s) : Bowman
Elevated teqerature fatigue of MDPE pipe system showed socket and electrofusion fittings had similar fatigue lifetimes, while butt jointed pipes failed at repmducibly lower lifetimes. Extrapolatims to 2O'C preserved the raking in joint performance, although combined creep ad fatigre tests showed pure fatigue...