Descripción

Plastiducto S.A. is the first company in Uruguay with more than 50 years of experience in producing low density polyethylene pipes (LDPE). Our products are distinguished by 3 parallel stripes, they are manufactured with the best raw materials and differentiated from others for their excellent quality.
These pipes are extensively used in agriculture and water distrubution nets.
Each use has its own type of pipe recognizable for the colour of the 3 stripes:
3 yellow stripes – for general purposes, named LDPE “3 STRIPES”
3 green stripes for agriculture, named “AGRODUCTO”
Main characteristics
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Manufactured with low density polyethylene (LDPE) virgin.
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Inch series.
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Operating temperature up to 40º C.
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High flexibility..
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Supplied in coils up to 200 meters.
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Additivated with carbon black to protect it from UV rays.
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Resists flattening 100%.
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Joint system through spigot fittings.
Properties:
|
|
Mechanical and Physical properties
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| Melt flow index (MFI, 190ºC/2,16 Kg) ISO 1133-ASTM D 1238 |
0.27 g/ 10min |
| Density (ISO 1183) |
0.922 g/ cm3 |
| Resistance to internal pressure (UNIT 137) |
σ ensayo = 70 Kg/cm2,
1 hora, a 20 ºC |
| Resistance to internal pressure (ISO 1167-ISO 4427 |
σ test = 65 Kg/cm2, 100 hours, at 20 ºC |
| Tensile Strength (ASTM D638) |
172 Kg/cm2 |
| Breaking point elongation (ISO R 527 – ISO 6259- ASTM D638) |
650 % |
| Dimensional stability (ISO 2505) |
< 3% (100 ºC, 1 hour) |
| Carbon Black Content (ISO 6964) |
2.5 % |
| Carbon Black Dispersion (ISO 11420) |
£ Grade 3 |
| Coef. dilatación térmica (a) |
0.0002 m/ m/ ºC |
| Thermal conductivity (k) |
0.29 Kcal/(m x h x ºC) |
|
Table Nº1
Service Temperature
Los tubos de Polietileno soportan temperaturas de fluidos hasta aproximadamente 40 ºC en servicio continuo (Ver Tabla Nº 2). Factor de reducción de la presión nominal en función de la temperatura para tubos de Polietileno PEBD (PE 32) Tipo C.
| Temperature (ºC) |
20 |
25 |
30 |
35 |
40 |
Minimum shelf life
|
| Reduction factor |
1.0 |
0.82 |
0.65 |
0.47 |
0.30 |
50 years |
| Reference: ISO 4427 (1996) |
Table Nº2
Resistance to the weather elements
Low density polyethylene pipes (“3 Stripes”) are protected against the degradation by ultraviolet rays (UV) due to the addition of carbon black when manufactured. However, it is recommended to bury the pipes, in order to avoid this attack factor.