PEX PRO's HDPE
PEX PRO high-density polyethylene pipe is produced by IR/Peroxide method. This method ensures an even and very high
degree of crosslinking over the entire cross-section of thick-wall pipes.
Crosslinking is a process which transforms the chemical structure in such a way that the polymer chains are linked within themselves into a three-dimensional network through chemical connections. The result is a flexible thermoset polymer with improved mechanical, thermal and chemical properties. The crosslinked polymeric structure makes dissolution impossible, unless its structure is previously destroyed.
The properties of PE-Xa make the pipe the most flexible in the market while offering better resistance to stress than other PE-X pipes,
produced with different methods.
There are three methods of PE-X manufacturing:
– PE-Xa made with a peroxide method, requires a minimum of 70% crosslinked polyethylene
– PE-Xb made with a silane method, requires a minimum of 65% crosslinked polyethylene.
– PE-Xc made with a radiation method, requires a minimum of 60% crosslinked polyethylene.
PEX PRO is PE-Xa, which provides the highest, most consistent level of crosslinking. This technology enhances flexibility and thermal
memory compared to PE-Xb and PE-Xc.
PEX PRO PEX pipe with a added outside
layer that guarantees UV protection. Therefore, this pipe is the most recommended solution for applications where the installation will
be exposed to UV radiation, for example, outdoor applications.
The UV protection layer is made of a specially stabilised PEX PRO
with a special additive that makes highly reliable and resistant to
ageing and discolouration caused by UV radiation.
PEX PRO pipe can be welded directly, with no need
to INSULATION off the outside layer, pipe and fittings can be installed
according the normal procedure, without additional steps.
PEX PRO fittings have UV-stabilizer to resist to UV exposure
during transport and installation.
However, the fittings are not long
term resistant to UV light, therefore fittings must be protected.
The pipe is supplied in black colour.
Technical Specifications
Our pipes are engineered for versatility. Below are the standard specifications for our most popular multi-layer composite pipe sizes.
| Nominal Size (mm) | Wall Thickness (mm) | Aluminum Thickness (mm) | Max Operating Temp | Max Pressure (at 60°C) |
| 16mm | 2.0mm | 0.20mm | 95°C | 10 Bar |
| 20mm | 2.0mm | 0.25mm | 95°C | 10 Bar |
| 26mm | 3.0mm | 0.30mm | 95°C | 10 Bar |
| 32mm | 3.0mm | 0.45mm | 95°C | 10 Ba |
PEX PRO Composite Pipes : PEX PRO Composite Pipes have pressure rating of 14.2 Kg/Cm^2 at 23o C and 11.5 Kg/Cm^2 at 65oC. PEX PRO Composite Pipes can safely be used for 6.2 Kg/Cm^2 pressure at 82oC operating temperature. Short term excursions to 95oC will not affect the overall performance. Design life span for PEX PRO Composite Pipes is more than 50 years.