Most cracks in uPVC pipes are typically caused by rough handling. This can occur during transportation, while being stored at the wholesaler, or on the job site. Additionally, fine cracks may result from cutting the pipe with dull or damaged ratchet cutters. The majority of these cracks tend to happen during colder weather when temperatures drop below 10°C. Similar to other plastics like PEX-A and CPVC, uPVC can become somewhat brittle during these conditions and requires careful handling.
To minimize issues arising from cracked pipes, several measures can be implemented:
A) Educate your installers about the potential problems and instruct them to handle uPVC pipes appropriately.
B) Use a saw or a circular tubing cutter with a plastic tubing blade to cut the pipe to the desired length.
C) Before making a joint, thoroughly inspect the ends of the pipe. If a crack is visible, cut off the split portion before proceeding.
D) During cold weather, gripping the pipe surrounding the area to be cut for approximately 10 seconds prior to making the cut will warm the pipe and reduce the likelihood of problems.
By following these measures, you can minimize the occurrence of cracked uPVC pipes and ensure a successful installation.