ADVANTAGES IN YOUR HAND RAW MATERIAL - RANDOM POLYPROPYLENE - PowerPoint PPT Presentation

ONE WORLD ONE BRAND ADVANTAGES IN YOUR HAND

RAW MATERIAL - RANDOM POLYPROPYLENE Polypropylene it’s a versatile polymer which is abroad in our days. It is formed by simple connections of carbon-carbon and hydrogen-carbon. It is gotten by the propylene polymerisation, in the presence of catalysts in particular temperature and pressure conditions. In agreement with the polypropylene classification, we can classify the used raw material as being part of the copolymers group of the Random type. To get polypropylene copolymer little quantities of ethylene are joined conferring to it the aptitude for the pipes production. Polypropylene Copolymer Random is characterised by its high molecular weigh and also by its resistance capacity in high temperatures and pressure conditions, assuring a high resistance and long life. We can also detach in the polypropylene a correct balance between its chemical, physical, ecological and economical properties. Polypropylene Properties Properties Condition Norm R esult Units Density ----- ISO 1183 0.895 g/cm 3 MFR 190ºC / 5Kg ISO 1133 0.50 g/10min Melt Flow Index MFR 230ºC / 2.16Kg ISO 1133 0.30 g/10min MFR 230ºC / 5Kg ISO 1133 1.50 g/10min T raction Resistance ----- ISO 527 25 MP a Allonge to the rupture ----- ISO 527 12 % Modulus of elasticity ---- ISO 527 850 MP a 23ºC ISO 9854 Without Fail ---- Impact Resistance (Charpy) 0ºC ISO 9854 Without Fail ---- -10ºC ISO 9854 Without Fail ---- VICAT T emperature 10 N ISO 306/A 130 ºC VICAT T emperature 50 N ISO 306/B 61 ºC Thermal Conductivity ---- DIN 52612 0.24 W/m K Longitudinal warm deformation 135ºC UNE-EN ISO2505 0,54 %

On the table we can find the most known chemical products. For more information about other chemical products please contact with the company. Abrev.: a = Watery Solution; cold sat. =cold saturated solution; + Resistant; +/- minimal Resistance ; - Not Resistant

ADVANTAGES USING THIS SYSTEM Corrosion Resistance Adjusted Useful Life Polypropylene Random has a high level of electrical isolation, what In agreement with the regression curves, it is possible to observe that prevents the corrosion appearance consequence of the chain water. for the hydrosanitary installations, in defined temperature and The system low affinity index to basic and acid substances, gives it pressure conditions the lifetime of the system reaches over 50 years. compatibility with daily used compounds in construction industry (whitewash and cement), as well as the most chemical substances that are usually present in water conducts. Any information concerning with chemical products use on PP-R conducts must be PP -R consulted in the table on the right: Low Thermal Conductivity It substantially reduces the traditional thermal condensation typical of the metallic pipes. Reduced Load Losses Fittings and pipes are characterized by the internal smooth surfaces, preventing the calcareous deposit, reducing to the minimal the load losses. Acoustic Isolation The raw material characteristics and the used thicknesses give a high level of acoustic isolation to the system. Organoleptical Properties PP-R is a product completely not toxic, assuring to the system the possibility of conduction of drinkable water. Instalation Reduced Time R upture Time (h) The most important characteristic of PP-R system is the Thermo Welding union of all the elements, which is a safety and easy way to execute the work comparing to other systems.

APPLICATION FIELD Helisystem system, because of its previous mentioned characteristics, has a very large range of application fields, considering the appropriated pressure and temperature for the application class: Cold and Hot Water Sanitary Distribution; Central Heating System; Pipe installations in upstream columns of big buildings: hotels, hospitals, schools, etc; Industrial Installations: Agriculture, horticulture, slaughter houses, nourishing liquids; Boats, camping charavanes, pre-manufactured houses Application Class Work Pressure (bar) 1 – Hot water distribution (60 ºC) 10 2 – Hot water distribution (70 ºC) 8 3 – Central Heating system at low temperature 10 4 – Central heating system at High T emperature 6

HANDLE AND INSTALLATION To get a good result in the Helisystem installation, you must consider some very important HELIROMA recommendations, as well as the Welding Technique and the Linear Dilatation. UV rays Resistance PP- R, as all thermoplastics, shouldn’t be directly exposed to the solar rays. Bending Pipes Do not use flames to made bending or shunting lines, because it will probably damage the molecular structure of the polypropylene. Low Temperatures Resistance At low temperatures (near to 0º C) the system becomes more fragile. Especially in the pipes extremities the shocks must be prevented, as well as the excess heavy weighs and big curves. Prevent the use of pipes with incisions or scratches, result of bad handle. Prevent Escapes in Metallic Connections Use Teflon or hemp to prevent escapes. Do not use fittings with conic screw or not calibrated, and screw it without extreme effort. Cutting To get a cut without barbs and perpendicular to the pipe axle, you must use adjusted cut equipment.

WELDING TECHNIQUE DESCRIPTION WITH MANUAL WELDING MACHINESYSTEM ADEQUATE USE RECOMMENDATIONS The connection between fittings and pipes is made by fusion at 260ºC, with adjusted equipment supplied by Heliroma. You just have to connect the equipment at a 220v electrical circuit and wait. The intermittent green light will indicate that you reach the welding temperature. In this exactly moment you can start work. With the polywelder, simultaneously heat the fitting and the correspondent depth of the pipe making a little pressure of both agains’t warm polywelder bush. Passed the needed time to heat pipe and fitting, join both without interruption. During a short period (3s) you can make little adjustments to the welded pieces (rotations never superiors to 30º). After some seconds the fusion will be at his high resistance level.

VALUES TABLE Exterior Diam. (mm) Weld Depth (mm) Heating Time (s) Adjustments Time (s) Cooling Time (s) 20 14 5 4 4 25 15 7 4 4 32 16.5 8 6 4 40 18 12 6 4 50 20 18 6 4 63 24 24 8 6 75 26 30 8 8 90 29 40 8 8 110 32.5 50 10 8 125 35 70 12 10 160 46 80 15 12 Note: Heating times starts from the moment when pipe and fitting are correctly positioned in the bushes.

THERMAL DILATATION You can define Thermal dilatation as the system dilatation concerning with it own measures, with origin in the installation temperatures and also in the work temperature variations. Because of this, you must always consider the way that the pipe will be installed: inside the wall or the floor, or installed outside the wall or floor. The first situation won’t be the most preoccupying one because the material that makes the system coverage during the dilatations absorbs these changes. In the second case the thermal dilatation must be considered, it means that the material contraction and dilatation must compensate all the dimensions, preventing in this way future problems. Linear Thermal Dilatation Calculation L P F L L - Initial Length of the Pipe, in temperature T0 (m) - End Length of the Pipe, in temperature T (m) - Linear Dilatation (L-L0) (mm) - Pipe temperature variation, in °C (T-T0) fitting pipe - Linear Dilatation Coefficient, in mm/mºC; for the PP-R Pipe the Linear Dilatation Coefficient (Table Value) is: P M a = 0.15mm/m ºC

Compensation of the Thermal Dilatations by Dilatation Curves Dilatation curves are similar to two dilatation arms and they are always used when a dilatation arm can’t absorb all the syst em dilatation. L Lc L P F P M P M P F L L L L ms fitting pipe pipe fitting P F The formulation to calculate the dilatation curve is the below described: L C = 2 x ∆ L + ms Lc - Curve Minimal Width (mm) ∆ L - Linear Dilatation (mm) ms - Security Minimal = 150 mm

Exemple: Calculation of the dilatation arm length for the previous example PP-R bar Dimension = 4 metros Ls = 20 x 25 x 24 Pipe Diameter = 25 mm ∆T = 40ºC = 20 x 24.5 = 490 mm Dilatation Curve Calculation Thermal Dilatation Calculation ∆ L = 4 x 0.15 x 40 = 24 mm Lc = 2 x 24 + 150 = 198 mm

DISTANCE BETWEEN SLIDING FIXATION POINTS IN CM T emperatures ( T) ºC Helisystem 20 30 40 50 60 70 80 Diameters (mm) 20 65 63 61 60 58 53 48 25 75 74 70 68 66 61 56 32 90 88 86 83 80 75 70 40 110 110 105 100 95 90 85 50 125 120 115 110 105 100 90 63 140 135 130 125 120 115 105 75 155 150 145 135 130 125 115 90 165 160 155 145 140 130 125 110 180 175 170 165 150 140 130 125 190 185 180 175 160 150 140 160 250 230 220 220 190 180 -

DISTANCE BETWEEN SLIDING FIXATION POINTS IN CM T emperatures ( T) ºC Romafaser 20 30 40 50 60 70 80 Diameters (mm) 20 85 85 80 80 80 75 70 25 100 100 95 95 90 85 80 32 110 110 100 105 105 105 95 40 130 125 125 125 120 120 110 50 160 155 150 145 145 135 130 63 175 170 170 165 160 160 150 75 185 185 175 170 165 165 160 90 195 195 190 190 180 175 165 110 210 210 200 200 195 185 175 125 235 220 210 205 200 190 180 160 265 255 245 230 220 215 -

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