ADVANTAGES IN YOUR HAND RAW MATERIAL - RANDOM POLYPROPYLENE - - PowerPoint PPT Presentation
ADVANTAGES IN YOUR HAND RAW MATERIAL - RANDOM POLYPROPYLENE - - PowerPoint PPT Presentation
ONE WORLD ONE BRAND ADVANTAGES IN YOUR HAND RAW MATERIAL - RANDOM POLYPROPYLENE Polypropylene its 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
Polypropylene Properties Properties Condition Norm R esult Units
Density Melt Flow Index T raction Resistance Allonge to the rupture Modulus of elasticity Impact Resistance (Charpy) VICAT T emperature VICAT T emperature Thermal Conductivity Longitudinal warm deformation
- MFR 190ºC / 5Kg
MFR 230ºC / 2.16Kg MFR 230ºC / 5Kg
- 23ºC
0ºC
- 10ºC
10 N 50 N
- 135ºC
ISO 1183 ISO 1133 ISO 1133 ISO 1133 ISO 527 ISO 527 ISO 527 ISO 9854 ISO 9854 ISO 9854 ISO 306/A ISO 306/B DIN 52612 UNE-EN ISO2505 0.895 0.50 0.30 1.50 25 12 850 Without Fail Without Fail Without Fail 130 61 0.24 0,54 g/cm3 g/10min g/10min g/10min MP a % MP a
- ºC
ºC W/m K %
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.
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
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.
Adjusted Useful Life
In agreement with the regression curves, it is possible to observe that for the hydrosanitary installations, in defined temperature and pressure conditions the lifetime of the system reaches over 50 years.
PP
- R
R upture Time (h)
Instalation Reduced Time
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.
ADVANTAGES USING THIS SYSTEM
Corrosion Resistance
Polypropylene Random has a high level of electrical isolation, what prevents the corrosion appearance consequence of the chain water. The system low affinity index to basic and acid substances, gives it 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 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.
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 Work Pressure (bar) Application Class
10 8 10 6 1 – Hot water distribution (60 ºC) 2 – Hot water distribution (70 ºC) 3 – Central Heating system at low temperature 4 – Central heating system at High T emperature
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
- f 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.
Note: Heating times starts from the moment when pipe and fitting are correctly positioned in the bushes.
VALUES TABLE
20 25 32 40 50 63 75 90 110 125 160 14 15 16.5 18 20 24 26 29 32.5 35 46 5 7 8 12 18 24 30 40 50 70 80 4 4 6 6 6 8 8 8 10 12 15 4 4 4 4 4 6 8 8 8 10 12
Exterior Diam. (mm) Weld Depth (mm) Heating Time (s) Adjustments Time (s) Cooling Time (s)
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.
L fitting pipe L P M P F L Linear Thermal Dilatation Calculation
- 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)
- Linear Dilatation Coefficient, in mm/mºC; for the PP-R Pipe
the Linear Dilatation Coefficient (Table Value) is:
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 system dilatation.
fitting fitting pipe pipe ms P F L L Lc
L L L L
P M P M P F P F
The formulation to calculate the dilatation curve is the below described: Lc - Curve Minimal Width (mm) ∆ L - Linear Dilatation (mm) ms - Security Minimal = 150 mm
LC = 2 x ∆L + ms
Exemple: PP-R bar Dimension = 4 metros Pipe Diameter = 25 mm ∆T = 40ºC Thermal Dilatation Calculation ∆ L = 4 x 0.15 x 40 = 24 mm Calculation of the dilatation arm length for the previous example Ls = 20 x 25 x 24 = 20 x 24.5 = 490 mm Dilatation Curve Calculation Lc = 2 x 24 + 150 = 198 mm
DISTANCE BETWEEN SLIDING FIXATION POINTS IN CM
T emperatures ( T) ºC Diameters (mm)
20 25 32 40 50 63 75 90 110 125 160
20 30 40 50 60 70 80
65 75 90 110 125 140 155 165 180 190 250 63 74 88 110 120 135 150 160 175 185 230 61 70 86 105 115 130 145 155 170 180 220 60 68 83 100 110 125 135 145 165 175 220 58 66 80 95 105 120 130 140 150 160 190 53 61 75 90 100 115 125 130 140 150 180 48 56 70 85 90 105 115 125 130 140
- Helisystem
DISTANCE BETWEEN SLIDING FIXATION POINTS IN CM
20 25 32 40 50 63 75 90 110 125 160 85 100 110 130 160 175 185 195 210 235 265 85 100 110 125 155 170 185 195 210 220 255 80 95 100 125 150 170 175 190 200 210 245 80 95 105 125 145 165 170 190 200 205 230 80 90 105 120 145 160 165 180 195 200 220 75 85 105 120 135 160 165 175 185 190 215 70 80 95 110 130 150 160 165 175 180
- T
emperatures ( T) ºC Diameters (mm) 20 30 40 50 60 70 80 Romafaser
QUALITY MANAGEMENT
Reception inspection All the raw materials are strictly inspected (Reception Test and Inspection Proceeds – P.I.E.R.), in agreement with previously defined regulation rules of the Standars. Production inspection Inspection Plans of the Production process were implemented in agreement with the regulation rules of the Standars and Certification Entities demands, which ones were communicated to the production employees with the objective of prevent fails during its practical application. Dimensions in the production are inspected every hour (Diameter, Thickness and Printed Information). Once per shift, as minimum, the Quality Manager make a projecting control in way to verify all the defined demands on the production check-list. Laboratory inspection After the production inspection approval, all the pipes and fittings must wait for the test results of the laboratory. For this stage were also defined Inspection plans and laboratory tests – P.I.E.L. based on the Standars and Certification Entities demands. Periodically these equipments are calibrated by Certified Entities. Pipes and Fittings Tests Description Melt Flow Index (MFI) – This test refers to the mass amount determination that passes through calibrated orifice (die head). At 230ºC temperature during a defined period of time and charged with 2,160 Kg. The final result has to be a lower then 30% difference concerning with the Melt Flow Index of the raw material. Longitudinal Warm Deformation – This test consists in the attainment of a pipe with a defined length, which one is placed inside of a greenhouse during a defined period of time and temperature. A distance is marked in the pipe and under the same conditions it is measured after and before the pipe heating in the greenhouse. Deformation is calculated in percentage of the length variation concerning with the initial length. 0ºC Impact resistance by Charpy method – The samples are prepared in agreement with the specified measures and they are placed in a bath at 0ºC during a defined period of time. These samples are submitted to impact energy of 15J. This is a test pass/fail, so because of this the test could not have any fails. Internal Pressure Resistance Test in water-water environment – For this test the samples are selected with a free length of at least 250mm. After samples preparation, they are submitted to a Specific and Constant Internal Hydrostatic pressure, during a defined period while which can not happen any fails.
Variables to the tests T emperature (ºC) Hoop Stress (MPa) Time (h)
20 95 95 95 110* 16 4.2 3.5 3.8 1.9 1 22 1000 165 8760
* - This test is made annually en Certified Entities and it is made in Air-Water environment.
To make this test, its necessary to get the Test Pressure (P) in bar units, with the below formulation:
- Minimal Thickness of the sample (mm)
- Pipe exterior diameter average(mm)
- Stress (MPa)
After tests approval it is made one Inspection Certificate with the results of several tests, and it is sent to the customers always when asked. Note: To the fittings and in agreement with Standars demands the tests of Melt Flow Index and Internal Pressure Resistance are made.
P = x 10 2 x e x d x e
PP-R PIPE STANDARD
P lastic pipe system for cold and hot water (P
- lypropylene – P
P ) P lastic pipes– T
- hermoplasticpipes. Warm longitudional deformation.
T
- hermoplasticpipes. Internal pressure at constant temperature.
P lastics–ThermoplasticsMelt F low Índex. T hermoplasticpipesto fluid transport. C harpy method impact test. General test demands for P
- lypropylene pipes
P
- lypropylene P
ipe dimensions
Standard Standard description
UNE EN ISO 15874 UNE EN ISO 2505 ISO 1167 ISO 1133 ISO 9854-1/2 DIN 8078 DIN 8077
Certificate N.º Certificate Entity
TMP
- 032/2008
TMP
- 033/2008
001/004431 001/004429 001/004426 DW-8317BT 0232 DW-8317BT 0233 14/08-1253 010-HC C OCC -754 010-HC C OCC -755 C E R TIF C E R TIF AE NOR AE NOR AE NOR DVGW DVGW C S T B B ULGAR K ONTR OLA B ULGAR K ONTR OLA
CERTIFICATIONS OF THE HELISYSTEM PP-R SYSTEM
COMPANY CERTIFICATIONS AFTER THE QUALITY MANAGEMENT SYSTEM IMPLEMENTATION.
E R
- 0403/2007
P T
- 02/C
E P .1640 AE NOR IQNE T
Certificate N.º Certificate Entity
TOXICITY AND DRINKABLE WATER
06-0020431 R E F .0708131013HVDJ INR J(Instituto Nacional Dr. R icardo Jorge) DVGW byKIWA
Certificate N.º Certificate Entity
Drinkable water test report T esting migration related to toxicological and organoleptical aspects(KT W test on P P
- Rpipesacc. DVGW544
T est information
multilayer P P
- Rpipe with fiber glass
P P
- R 80
Fiber glass compound P P
- R 80
ROMAFASER PIPE
Romafaser pipe is a multilayer PP-R pipe and it has 3 layers, the outside layer is PP-R 80 the middle layer is Fiber Glass compound and the inside layer is PP-R 80. The acquired experience of mixtures between Fiber Glass and Polypropylene in different industry sectors is now being applied in our sector of pipe production. Heliroma uses high-tech in extrusion equipments producing the Romafaser pipe, getting the European “faser “pipe with lower dilatation in European market.
Pipe Length (m) LINEAREXPANSION ( L) (mm) T emperature Diference (k)
0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0 2,0 3,0 4,0 5,0 6,0 7,0 8,0 9,0 10,0
10
0,03 0,06 0,09 0,12 0,15 0,18 0,21 0,24 0,27 0,30 0,60 0,90 1,20 1,50 1,80 2,10 2,40 2,70 3,00
20
0,06 0,12 0,18 0,24 0,30 0,36 0,42 0,48 0,54 0,60 1,20 1,80 2,40 3,00 3,60 4,20 4,80 5,40 6,00
30
0,09 0,18 0,27 0,36 0,45 0,54 0,63 0,72 0,81 0,90 1,80 2,70 3,60 4,50 5,40 6,30 7,20 8,10 9,00
40
0,12 0,24 0,36 0,48 0,60 0,72 0,84 0,96 1,08 1,20 2,40 3,60 4,80 6,00 7,20 8,40 9,60 10,80 12,00
50
0,15 0,30 0,45 0,60 0,75 0,90 1,05 1,20 1,35 1,50 3,00 4,50 6,00 7,50 9,00 10,50 12,00 13,50 15,00
60
0,18 0,36 0,54 0,72 0,90 1,08 1,26 1,44 1,62 1,80 3,60 5,40 7,20 9,00 10,80 12,60 14,40 16,20 18,00
70
0,21 0,42 0,63 0,84 1,05 1,26 1,47 1,68 1,89 2,10 4,20 6,30 8,40 10,50 12,60 14,70 16,80 18,90 21,00
80
0,24 0,48 0,72 0,96 1,20 1,44 1,68 1,92 2,16 2,40 4,80 7,20 9,60 12,00 14,40 16,80 19,20 21,60 24,00 Linear E xpansion C
- efficient) = 0,03 mm/(m xk)
Romafaser pipe have a dilatation value around 30% less than similar pipes. One of the most important issues on this kind of pipe is the fact of all that layers of the pipe are completely joined, getting in this way a better behavior than the Stabi pipe which one has not all the layers completely joined because the aluminum layer is not welded with the other ones.
Romafaser advantages comparing with Aluminium foiled PP-R pipe
Heliroma’s Romafaser pipe is the result of a long experience that makes it the most recent and more technological developed pipe of the moment facing normal PP-R pipe.
ADVANTAGES THAT MAKE THE DIFFERENCE
The main objective to create ROMAFASER was to reduce the dilatations:
- 1. Romafaser pipe dilatation is 8 up to 10 times lower than a normal PP-R pipe and a Stabi PP-R pipe (Aluminium foiled PP-R pipe) just reduce it in 6 times.
- 2. Dilatation control of Romafaser pipe is made from the middle of its own body with Glass fibre molecules melted in the raw material.
In this way, it is possible to control the dilatation phenomenon from the middle of pipe body preventing the Hoop Stress phenomenon. Stabi pipes have a strong tension between aluminium and PP-R layers happening sometimes the separation of the layers.
Its also impossible to weld PP-R with Aluminium. Note that Romafaser pipe have all its layers completely melted getting in the end a pipe similar to one single layer pipe. Welding Romafaser pipe is directly placed in the polywelder bush without additional proceeds getting a weld between pipe and fittings as in normal PP-R pipe. However, a stabi pipe requires previous proceeds to take off the aluminium layer to be possible to weld pipe and fittings. This proceed of take off the aluminium layer from stabi pipe is made under the use of a special tool and one is need for each diameter. This is an essential proceed with stabi pipe requiring a big effort, time and hand-work for each weld. Furthermore, with Romafaser pipe this proceed is absolutely unnecessary keeping a bigger security level and also keeping the original diameter according the DIN8077 DIN 8078 standards. Bigger flow capacity, consequence of reduced thickness’s. Weight reduce being easier to handle the pipe. Being the Linear Dilatation coefficient very similar to metallic pipes, its possible to increase the pipe support distances and reduce the dilatation arms.
In the following tables you can check the relation between work temperatures, pressure, years of work and also the difference between regular PP pipe and Romafaser.
CENTRAL HEATING SYSTEM
SANITARY WATER