PPR Pipe
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PPR Pipe
What is PPR : PPR is a thermoplastic polyolefin which is easy to process into pipes & fittings with superior chemical & physical properties. Why we need PPR : They are Best carriers of potable water (both Hot or cold) in domestic as well as in industrial application in terms of quality and price. When we need PPR: When long- term performance under adverse conditions without deviations in standards is required. Where we need PPR : Areas of Plumbing/Water tight systems/corrosion resistance/No encrustation tendency/Noise dampening plastic material/Long term pressure resistance applications. Advantages of PPR Pipes : No corrosion by acid and alkaline fluids with pH values between 1 and 14 High chemical resistance Excellent ESCR – Longer life High abrasion resistance => high flow velocities possible High internal pressure resistance Minimum 50 years life time at 60 or 70°C and 10 bar maximum pressure No negative influence on water quality Compliance with the international standards on the use of plastic materials for the transportation of drinking water. Prevents UV passage – prevents growth of bacteria & algae Very smooth surface of pipes and fittings No lime stone or other deposits Head loss / pressure drop reduced to a minimum Welding capacity 100% homogeneous connections, guaranteeing leak-tight, long lasting system fast and easy installation Threaded insert fittings Watertight assemblies with other metal elements in the installation Silence / sound absorption Considerable noise reduction in comparison to metal Low specific weight Easy transport and handling Lowest density as compared to conventional metal pipes Energy saving Low heat conductivity of PP-R leads to 10-20% energy saving Reduced Condensation Low heat conductivity reduces the condensation of water on the outer surface of cold water pipes Resistance to stray currents PPR has a low electrical conductivity perforation phenomena caused by stray currents are unknown Fitness for use in seismic areas Flexibility and toughness of the PP-R pipes allow their use also in seismic areas Applications of PPR Pipes : Hot and cold water supplying pipes Sanitary lines Water lines Water purifying plants Lines for conveying liquid food products Industrial systems like : conveying air pressure, aggressive fluids like acids, alkaline solutions Pipes for Agriculture use. Radiator heating pipes. Under floor heating pipes Precautions of PPR Pipes : Transport & Handling The products should be handled with normal care. Pipes and fittings with imperfections should not be installed. Exposure to UV Rays It is recommended neither to store nor to install the product in places which are directly exposed to UV rays. Bending Large bends can be obtained by cold forming. If the bend radius is shorter than 8 times the dia of the pipe, it is recommended to heat up the part concerned by means of a hot air blower. Threaded Joints To ensure tightness, Teflon or similar products can be used. Thermal Expansion The thermal expansion of plastics is higher than that of metals, hence the length expansion compensation should be considered. Welding Only chemically similar materials are supposed to be welded. Thus Polyethylene and polypropylene should not be welded. For the same material, the products to be welded should have approximately the same fusion index. Support The PP-R pipes are not self-contained so it is necessary to support them at specific distances. Pipe Cutting Cuttings should be carried out using tools which ensure a clean cut free from burrs and perpendicular to the axis. Low temperatures At temperatures below 0 deg C, following precautions should be taken : Pay attention when cutting the pipe, Check the cut made, Avoid impact and excessive strains, Not to make elbows with vary narrow radius. In presence of cold draughts, welding must be carried out in protected areas, to avoid a quick cooling of the surfaces to be welded. |
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