CPD Specifier May 2015 issue May 2014 | Page 40

Plumbing & Heating Pegler Yorkshire bends the rules of plumbing Phil Jackson, Marketing and Business Development Director for Pegler Yorkshire examines the materials and systems available for domestic plumbing installations For the last 30 years or so, plumbing contractors have been faced with two options when it comes to the type of plumbing system they choose to install: copper or plastic. Soldered copper is the traditional option, and was long considered the best material for the job, ahead of lead (which is poisonous) and iron (which is heavy and inflexible); copper, on the other hand, proved reliable, durable and longlasting. As well as being non-permeable and resistant to water corrosion obvious ‘musts’ for plumbed pipes - it provides a biostatic atmosphere, which discourages the growth of bacteria. Copper can withstand extreme hot and cold temperatures without long-term degradation. When it comes to installation, too, copper has numerous advantages. For one, copper tubes can be joined using capillary fittings, which results in strong, smooth joints that will wear well. It also saves space in a plumbing environment, as it doesn’t need to be manufactured to the same thickness as other threaded pipes. It’s lightweight, too - a benefit that need not be explained to the suspension of any plumber’s van. Plastic emerged as a viable alternative in the 1980’s, principally due to its flexibility, affordability and ease of installation. Whether you use cross-linked polyethylene (PEX) or polybutylene (PB), the installation process is less labour-intensive than with copper, since no soldering torches or expensive tooling is required and far fewer elbows and couplers are required. Plastics are cheaper than copper too, especially as copper has become more expensive in recent years as a result of increasing raw material costs and the growing occurrence of mental theft. However, plastic is not as robust as copper, nor as resistant to extremes of temperature or rodent damage. Indeed, most professionals would accept that copper is the superior solution in terms of performance, aesthetics and overall quality of finish; the key attraction of plastic is the reduced cost of the materials involved. Although and unsurprisingly, there is still reticence among professionals to abandon copper solutions and adopt plastic. Indeed, plastic solutions still account for less than half of all UK domestic pipe sales and research suggests most installers would choose copper for their own homes. PEGLER YORKSHIRE GROUP THE ALTERNATIVE As a leading plumbing products and systems manufacturer Pegler Yorkshire offers an alternative solution! We have drawn on 125 years of British manufacturing experience to create the unique Tectite Flexible Metal system, a product like no other on the market. Tectite uses multi-layer composite pipe (MLCP) tubing, which is constructed using a thin layer of aluminium flanked by cross linked polyethylene, an environmentally friendly, industrial-strength plastic. This offers installers and specifiers the perfect balance between the integrity of metal and the flexibility of plastic. Indeed, the aluminium lends the tubing a malleable quality, as it can easily be bent and shaped by hand to allow for tight bends. This also saves time and money compared with copper, as fewer tools are needed, and it means the number of fittings required, such as couplers and elbows, is significantly reduced (by as much as 40%). Despite the malleability afforded by the composite structure of MLCP, it behaves far more like copper than plastic. First, it is highly resistant to warping - it expands almost 8 times less than Pex or PB and can handle temperatures of more than 100ºC and working pressures up to 16 bar. Second, the aluminium also provides a guaranteed oxygen barrier. Third, the smooth surface prevents the build-up of scale and makes Tectite Tube resistant to corrosion and wear. Tectite Tube has been designed for installation alongside the high performance metal push-fit fittings range from Pegler Yorkshire. The jointing of which do not require any expensive tooling - and is twice as quick as the capillary method, thanks to the use of prelubricated seals. Available in two sizes 15mm and 22mm, Tectite Tube is WRAS-approved, which means it is suitable for all UK domestic plumbing applications, including drinking water and central heating. TEL: 0844 243 4400 PRODUCT COMPATIBILITY We have based the Tectite Flexible Metal System around the Tectite Classic and Pro fittings ranges which provide a slim-line, stiff and reliable joint incorporating a demountable function. We have also incorporated a growing valve portfol [