Expansion joints WPP for PVC pipes - Polyethylene
Plastic tubes for aqueducts, gas pipes, sewers and other similar uses find a wide array of installations. Plastic tubes have a very high thermal expansion coefficient compared to ordinary steel tubes.
In long straight lines, the problem of thermal expansion of the tube is posed, which in many cases can reach high values.
Take for example a straight pipe of about 40 meters long. Considering a thermal delta of about 30 ° C between installation and operation, the pipeline will have a total axial dilatation of about 240 mm. The same steel pipe would have a total dilatation of about 10 mm.
For this reason, we have various types of expansion joints made of both PVC and metal, which cover all installation requirements, both with plastic and steel lines.
Technical features PVC joints
Manufacturing Diameters: DN 50 (63) - 80 (90) - 100 (110) - 125 (140) - 150 (160) - 200 (200)
The values in brackets refer to pipe diameters
Maximum travel: +/- 40 mm from the intermediate length position
Manufacturing Material: PVC / PP
Nominal pressure: 10 bar for PVC execution - 6 bar for PP execution
Seal gaskets: EPDM / VITON (other types available on request)
UNI PN10 end flanges
For applications requiring higher performances (running, pressures and temperatures) it is recommended to use the telescopic joints