Interplast, apart from single-wall Random (Type 3) polypropylene pipes, also manufactures three layer polypropylene - aluminium - polypropylene pipes. The new pipes are designed, manufactured and tested for quality, in compliance with the standards in effect for simple polypropylene pipes.
Aqua-Plus – Al pipes are ranked in the same class as simple Aqua – Plus pipes: Class 2/10 bar (safety factor Sf=1.5), that is, they are designed to convey drinking water, with capacity for non-stop operation for a period greater than 50 years with network pressure 10 bar and water temperature 70o C, or alternatively capacity for non-stop operation at 20 bar pressure at 20o C (PN 20) for the same period of time.
Advantages of Aqua-plus Al pipes
- Reduction of thermal linear expansion by 75% compared to simple polypropylene pipes (0.025 mm/m/°C).
- Increase of pipe’s mechanical strength against external impact..
- Increase of pipe’s mechanical strength against internal hydraulic pressures..
- Increase of pipe’s resistance to corrosion..
Thermal-welding of the new pipes with the polypropylene fittings is as easy as in simple pipes, after their ends are processed with a scraper.
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