PHAM NEWS | FEBRUARY 2024 26 Pipes, Fittings & Valves


Best of both metal and plastic strengths


The Multi-Calor pipe by Aquatechnik, available from SBS, is a multi-layer pipe designed for heating and hydro sanitary systems, including potable water. It combines the strengths of metal and plastic materials to provide resistance and performance in various applications. The pipe is composed of three layers


joined by two layers of adhesive. The internal layer is made of cross-linked polyethylene with additives and catalysts, followed by an adhesive layer and an aluminium layer. The third layer is another adhesive layer covered by cross-linked polyethylene. This composition offers advantages such as resistance to corrosion, hygienic properties, and impermeability to oxygen and light. It also has reduced thermal expansion compared to most plastic materials and retains heat effectively. The Multi-Calor pipe is said to have a


lifespan of at least 50 years at pressures up to 10 bar and continuous temperatures of 70°C, with peaks of 95°C. It can withstand extreme weather conditions, with a


Easier to connect to copper and steel


The alpex F50 Profi SST/CU coupling by Fränkische is a fitting that enables a quick and easy connection between copper or stainless steel pipes and the alpex pipe system. The lead-free coupling can be pressed onto the metal side using crimping contours M(apress), V(iega) and SA(hna). Because this coupling is specifically


minimum temperature of -45°C. For temperatures below 0°C, anti-freezing or glycol additives are recommended. The pipe is certified for all four classes


of application according to the UNI EN 21003 norm for pressures up to 10 bar. It is available in pre-insulated versions, with low thermal conductivity and resistance to steam diffusion. The use of cross-linked polyethylene


in the pipe improves its performance, including resistance to high temperatures, chemicals, and abrasion. It also provides resistance to ruptures caused by freezing, as the material can expand without bending or breaking and return to its original diameter after defrosting. ◼ phamnews.co.uk/224/36


Heat sensing element in water flow


Heating and plumbing product manufacturer, Inta, has unveiled the Inta Zero, an anti-freeze valve designed to safeguard water-operating heat pump systems. The Inta Zero houses its heat-


sensing element within the water flow rather than alongside it. This distinctive feature enables the valve to react more accurately and swiftly to temperature changes, thereby reducing the likelihood of unnecessary and disruptive discharges. Inta’s CEO Stuart Gizzi comments:


“With the introduction of the Inta Zero, we’re demonstrating our unwavering dedication to addressing real-world challenges within an evolving


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market. Our patented valve, by virtue of its unique design and functionality, promises to significantly enhance the performance of heat pump systems. “Our rigorous testing indicates that the Inta Zero operates within set tolerances. Should water temperatures drop to 3°C, the valve discharges effectively to prevent freezing and subsequent system damage,” adds Gizzi. “Furthermore, our patented anti-droplet technology ensures that no


droplet remains on the discharge port, preventing potential freezing that


could block further discharges.” Inta says this product has undergone independent testing to validate its efficiency and reliability. ◼ phamnews.co.uk/224/38


designed to connect multilayer composite pipes with copper and stainless steel pipes, it is suitable for use with many heat pumps. Requiring no additional parts, installation is straightforward and efficient – simply press the coupling. The alpex pipes can be connected by five


crimping contours: F, U, TH, H and VP. The fittings allow the connection of multilayer pipes to metal pipe in all frequently used pipe sizes (Ø 15, 18, 22 and 28mm).


Push-fit fitting relaunched with enhanced features


The PolyPlumb push-fit range has been relaunched by Polypipe with a series of upgrades. Complete with a streamlined design and new look, the new PolyPlumb Enhanced features In-Cert feedback technology to provide added confidence when fitting. The range is compatible with the company’s plumbing and heating pipe, as well as copper pipe, and is suitable for most hot and cold water supply and heating applications. The In-Cert incorporates a 360° wave


feature in its head which engages with projections within the socket. Meanwhile, the haptic click technology gives added assurance – just push the pipe home, twist, and you know the job is done. The compact fitting also features a pre-lubricated EPDM O-ring and a high performance stainless steel grab ring for extra joint integrity. PolyPlumb Enhanced is now available in white for the first time as well as the original


The coupling includes four large


inspection holes in the fixation ring, allowing for easy verification of correct positioning. It also features a leak before press function, enabling users to quickly identify if the coupling has been properly pressed during the pressure test after installation. ◼ phamnews.co.uk/224/37


grey, allowing it to blend seamlessly in a range of settings. The two colours are fully compatible with each other if required. As part of a commitment to creating a


more sustainable built environment, the packaging has also received an upgrade and features 50% recycled plastic film, a 30% reduction in plastic film thickness, and a reduction in bag size on its most popular fittings. PolyPlumb Enhanced will be available from merchants soon and comes with a 50-year guarantee. To learn more and request a free sample


pack, use the reader enquiry link below. ◼ phamnews.co.uk/224/39


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