The welding temperature for PPR pipes is generally between 260 and 290 degrees Celsius. This temperature range is crucial for ensuring a good weld.
Importance of Welding Temperature:
The welding temperature of PPR pipes must be controlled within an appropriate range. If the temperature is too low, the pipe and fittings may not melt sufficiently, resulting in a weak weld and leaks; if the temperature is too high, the pipe may deform or even burn, also affecting the weld quality.
Brief Description of Welding Steps:
Pipe Cutting: Use specialized scissors to cut the pipe, ensuring a smooth, burr-free cut. This is fundamental to ensuring weld quality.
Cleaning the Welding Area: Clean the welding area of the pipe and fittings, removing sand, dust, and other impurities to avoid damaging the joint.
Heating: Attach a heat fusion device to a heating head compatible with the size of the pipe being welded, and heat to approximately 260 degrees Celsius (the specific temperature should be adjusted within the range of 260 to 290 degrees Celsius depending on the actual operating conditions). Welding: After the heating head reaches the appropriate temperature, quickly insert the pipe and fittings into the heating head. Once melted, quickly pull them out and butt them together, maintaining a certain pressure until cooled and solidified.
Precautions:
Welding of PPR pipes requires specialized tools and must be performed by qualified personnel to ensure system safety.
During the welding process, heating time and welding pressure should be strictly controlled to avoid overheating or overpressure, which could cause pipe deformation or charring.
After welding, the welded area should be inspected to ensure there are no defects such as incomplete welds or weak welds.
