WELCOFLEX pipes

Benefits

• STRENGTH: the thickness of the intermediate aluminium layer varies from 0.4 mm (DN16) to 0.5 mm (DN20). The elevated thickness of the aluminium allows the pipe to withstand the stresses and vibrations of seismic activity.
• FLEXIBILITY: the union of cross-linked polyethylene and aluminium guarantees excellent flexibility when bending. WELCOFLEX can also be bent by hand with very small bending radii (1.5xDe).
• LIGHTNESS: the specific weights of the materials that make up the pipe are very low. Assuming the same diameter, WELCOFLEX is seven times lighter than iron pipe and three times lighter than copper pipe.
• LOW TEMPERATURES: WELCOFLEX can be used in very harsh climatic conditions (-45°C) as low temperatures do not weaken the mechanical and physical characteristics of the pipe. (However, all necessary precautions must be taken to avoid the formation of ice)
• SMOOTHNESS: the inner surface of the pipe is practically smooth and free of limescale and/or rust. Pressure drops are low and above all remain unchanged over time, as no encrustations can form on the walls.
• DURABILITY: laboratory tests guarantee that WELCOFLEX pipe will last for at least 50 years. During this period, it can be used at pressures of 10 bar and temperatures up to 95°C with maximum peaks at 110°C.
• EXPANSION: the linear expansion coefficient of WELCOFLEX pipe remains 0.024 mm/m°K, regardless of its diameter. No special devices are required when the pipe is covered in concrete.
• POTABILITY: there are no special precautions in relation to the use of WELCOFLEX piping for any type of installation where the fluid is drinking water.
• WATERPROOF: the head-to-head welded metal coating is a perfect barrier to the passage of oxygen and light. The pipe is absolutely opaque, so there is no possibility of algae formation.
• CLEANLINESS: in order for algae to grow, the presence of ultraviolet rays is required. The aluminium layer protects the inner layer from UV radiation and thus prevents the formation of algae.
• CORROSION RESISTANCE: the surface does not become corroded and no rusty particles detach. The PEX outer layer protects against the corrosion that can be caused by some cement mortars and against possible mechanical deterioration.
• RESISTANT TO INTERNAL ABRASION due to the abrasive action of impurities suspended in the carrier fluid (especially in bends), even when the flow rate is very high.
• FIRE RESISTANCE: the metal layer makes the pipe difficult to ignite, but combustion can still take place, developing a thin smoke (class 1).
• SOUNDPROOFING: good sound-absorbing properties for noises caused by the operation of electric pumps and fluid flow. The inner and outer PE-X coating attenuates sounds not absorbed by the metal layer.
• RECYCLABILITY: WELCOFLEX multi-layer pipe is completely recyclable; any unusable residual fragments can be recycled and used for other purposes.
• Can be used in MIXED INSTALLATIONS.