Do I need to use the same machine for heat fusion used for “PR” and “PPR” water pipes?
You can also use the same hot melting machine.
The degree of thermal fusion in PE ranges from 200 to 230, and the temperature of thermal fusion in PPR is between 260 and 280.
Four significant points should be considered when installing hot melt PE pipes.
- Welding temperature and time, pressure, the cleanliness of the surface. The quality PE100 determines the quality of the raw materials is 215-235 degrees Celsius PE80 ranges from 200-220 degrees Celsius Time and pressure will be determined based on the welding machine and the pipe. The welding surface should be free of dirt.
- welding seam excellent or bad judgment generally through the control of the program or its appearance test that is symmetrical and evenly flanging moderate size; smooth surface with no damage; no bump marks, the bottom part of the welding higher than the top of the pipe Back bending test welding is not prone to cracking.
- The 3 PPR pipe heat-fusion temperatures are typically between 260 and 280, which is the ambient temperature (room temperature) for an average of 20.
- Thermostatic heat fusion without changing the temperature.
- In 5 in a cold climate (-5 lower than) and windy conditions, it is recommended to take precautions or alter the procedure of connecting.
When the surrounding air temperature is lower than five °C, the heating time must be extended by 50%.