Imagine a situation: when assembling a plumbing system, we did not have enough couplings with an external thread. In this case, it is not at all necessary to run straight to the store. You can quite easily and quickly solve the situation on your own and with the means already available. The fact is that the threads on polypropylene structural elements can be cut independently.
What you need: female thread coupling, pipe soldering iron
By itself, the technology of threading on polypropylene pipes does not represent some extremely tricky science. However, it will be necessary to develop some skill before the carving becomes really high quality and free from manufacturing defects.
So, first of all, you need to heat the edge of the pipe with a soldering iron on which the thread will be made. While the temperature rises, it is necessary to prepare and take hands with a free female sleeve. As soon as the polypropylene heats up well and becomes pliable, it is necessary to remove the soldering iron and screw the coupling onto the weakened area.
Now all that remains is to wait 5-10 seconds until the plastic product begins to cool down. The material freezes very quickly. As this happens, handicraft carving will also form. All that remains is to twist the coupling and continue assembling the plumbing system. This skill will save the owner from the need to buy additional couplings in a number of situations.
One important "but" should also be taken into account: homemade threads are only suitable for using such plumbing under low pressure. You should not use this method for water supply or sewage at home. However, for a garden irrigation system, this method is perfect.
Video:
Continuing the topic, read about how to crash into a pipe under pressure for the installation of a ball valve.