PEX manufactured by Uponor Wirsbo in powder form, exposed to deformation to obtain the required grain size. It then weighed on electronic scales and mixed with additives in a mixer using a complex method.
The mixture is placed in a 440-pound (200 kg) vessel. After marking in accordance with the type of pipe, which will be made from this mixture, it is placed in storage for several days.
Finally, the weight is transferred from the vessels into the extruder. 440 pounds (200 kg) of powder is sufficient to produce about 5,000 feet (1,500 m) 3/4-dyuymovyh (20 mm) PEX pipe Uponor Wirsbo-PEX with a wall thickness of 3 / 32 inch (2 mm).
PEX pipe is shaped by extrusion, which holds the raw material in powder form at one end, and, applying heat and high pressure, displaces the tube from the ring-shaped holes on the other end.
During the formation of the pipe occurs and crosslinks. Now it should be noted an important difference between the PEX pipe Uponor Wirsbo-PEX and other PEX pipe made of crosslinked polymers. Crosslinks takes place until the material is in an amorphous state, ie, at a temperature which exceeds the melting of crystals. As a result, eliminated all the crystalline zone, which may have a negative effect on the process of cross stitching. Matching takes place smoothly and without interference.
