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PurMo rADSoNpeXpentArAiSiNGStANDArDSiN indoorcomFortWith its distinctiVe purmo radson orange colour,and its reassuring 30 year Warranty, peXpenta hasnoW oFFicially joined our product portFolio. “We aredelighted to announce the launch oF this innoVationin underFloor heating,” said tomasZ taraBura (Branddirector purmo radson lVi) at the press BrieFing atthis year’s ish in FrankFurt. “our customers can noWreliaBly oFFer end-users What We call ‘the Best oF BothWarmths’ – radiators and underFloor heating – underthe umBrella oF the World’s leader in indoor comFort,rettig icc.the Best oF Both Warmthsunderfloor heating systems are a perfect complement to any centralheating system using low temperature radiators. ltrs help increasethe energy efficiency of the underfloor system, which in turn providesthat added touch of comfort in hallways and bathrooms in the home.“We have worked hard to provide a full portfolio of choice to ourinstaller and customer network,” explains Stefan ramos (Brandmarketing manager), who was also at the iSh launch event. “At theend of the day, we do not want end-users to miss out on the perfectheating solution for their home. We do not want our installers tohave to take sides in their recommendation. if the decision at theend of the day is between ltrs and underfloor heating, ourrecommendation is an ideal combination of both.”FiVe Functional layersNot only is PexPenta Purmo radson’s a simultaneously-extruded5-layer pipe, it has another key benefit, as Mikko iivonen, Directortechnical environment and Standards, rettig icc, explains. “there areother pipes on the market that have 5 layers. technically that is true,but only PexPenta has a thick external PeX layer that provides strongabrasion protection. PexPenta has five functional layers. their primepurpose is to enclose the central eVoh layer. this is the most importantlayer in the pipe, and is positioned centrally in the construction. eVoh– ethylene vinyl alcohol copolymer – is an essential component inPexPenta. it prevents the intrusion of oxygen into the system water,which must be free of oxygen at all times, since it would attack anymetal surfaces and begin a corrosion that would threaten the systemand cause potentially catastrophic leakage. for that reason, PexPentafixes the eVoh layer firmly between two protective PeX layers, of equalthickness. thus any oxygen molecule would have to pass first throughthe outer PeX layer, then through the eVoh layer, and through thesecond PeX layer before it could reach the system water. the 5-layerconstruction of PexPenta ensures this can never happen.simultaneously extruded: that is, all 5 layers are formed together.Many other underfloor pipes are formed in separate processes:the inner layer is created, then the pipe is wound onto a drum.the pipe then goes through a second process where additional layersare coated onto the pipe. Because PexPenta’s layers are extrudedat the same point, each layer is securely bonded at the point ofproduction. “this gives an added level of reassurance,” says Stefan,“because it eliminates the possibility of error that might come witha second pass through the extrusion process.” to make this 5-layersimultaneous extrusion possible, an entirely new manufacturingprocess was required.pioneers in plastic pipesBefore PexPenta was developed, the industry standard in underfloor4 or even a 3-layer construction. researchers and polymer scientistsat the production plant where PexPenta is produced today, wereresponsible for the breakthrough. the 5 layers in PexPenta arethe industry’s most adVanced and rigorousin-house testingPexPenta is produced in a unique plant with its own lab and testingfacilities. it is in fact the only plant in the industry where such >>| 9091 |