Morris, Gill
# 1992 Eindhoven
The introduction of a new grade of polyethylene for pressure pipes has presented a challenge to the UK Water Industry. Some aspects of the performance of the pipe itself are claimed to be significantly better than those of existing MDPE grades which would offer significant economic and operational benefits. However, there has been a need to ensure that fusion joints can be made that do not provide a point of weakness within the pipeline. Results from this investigation are presented.
The UK Water Industry is a major user of plastic pipelines both for the delivery of raw and processed water and for the disposal of sewage and waste water. With the increased performance of current pipe grades of polyethylenes (PE) there is a corresponding need to produce joints that consistently perform as near to the pipe itself as is possible under UK operating conditions.
Related papers
Author(s) : Gill, Knapp, W.Bradley, L.Bradley
The objectives of this research are to better understand the degradation of cross-linked polyethylene (PEX) tubing subjected to pressurized, hot chlorinated water in flow-through systems (like home plumbing) and to estimate its service lifetime. PEX tubing was subjected to pressure testing with flowing hot,...
Author(s) : Morris, Cant
In the UK, jetting of drains and sewers is undertaken mainly for emergency clearance of blockages, rather than planned cleaning as in some other countries. Jetting equipment has been constantly upgraded to produce higher pressures in order to provide a quicker service to customers and better return on...
Author(s) : Stokes, Morris
At this Conference, the main focus is on the pipe : hardly surprising since this forms a large part of the material cost of a sewer, water, gas or fuel line. However, the pipe is often only a small part of the total cost of a pipeline installation. It is the jointing of the pipes to each other and to valves and pumps...
Author(s) : Stephens, Gill
Due to its link with the Water Industry WRC has been involved with uPVC pipes for many years. Rased on information gathered from several WRC exercises involving detailed evaluation of operational data, research into pipe failures and information from other suitable sources this paper discusses various aspects found by...
Author(s) : Gill, Law
The pricipal plastics materials used for the distribution of potable water supplies in this comtry are uPVC and polythene. uPVC is now available in pipe sizes up to 24 in. and its use in the UK has increased rapidly since the first pipe of this material was laid in 1958. Polythene pipes have been used for rather...
Members of the Association
