I will show how easy it is to cut threads on a water pipe to an ordinary home craftsman, without any skills in this business and with a minimal set of tools. For example, when replacing a central heating battery, as in my case. This is absolutely nothing complicated and the method is available to almost everyone. So, you cut the pipe with a grinder or other tool, such as a hacksaw. The main thing is that the cut is even and perpendicular.
It will be needed
The screw-clamp for the desired pipe diameter.
Adjustable wrench (gas).
Klupp - thread-cutting tools, such as dies, only this nozzle with a guide skirt. It must be purchased at the plumbing store. There is no shortage of them, so you will find it without any problems, even in the village.
In this case, the Chinese version is presented, quite good.
There is such a thing around 200-500 rubles. It all depends on the diameter and extra charge.Running models for diameters 1/2, 3/4 inches and inch as in my version.
You can ask the plumber of the Soviet counterpart, if there is such a possibility. Then for you it will be generally free.
Cut the thread on the pipe
The old paint can not be removed. Lubricate the place where the thread will be solid or liquid lubricant: solidol, lithol, engine oil.
We also coat the cutters on the die.
Neither there nor there you need to apply a lot of solid lubricant, because the chips after cutting will stick to it and will not fall down, and therefore will be removed.
We put the guide on the pipe.
The idea is that the klapp rotates with a specialized tool - a ratchet, but since we have a one-time job, it will not be profitable to purchase an expensive tool. We take the adjustable wrench and adjust it its size under the rear skirt of the screwdriver. Rotate the tool, taking a few turns around the pipe.Now the cutters are engaged.
If the pipe is flimsy and unstable, it must be held with another adjustable wrench like this: src="https://sdelaysam-svoimirukami.ru/uploads/posts/2018-06/medium/1530182264_11.jpg" style="max-width: 100%;" alt="How to cut the thread on the pipe"> And another adjustable wrench to rotate the nozzle. The cutting sequence is as follows: 2-3 turns of the screw die forward, 1 backward. This must be done so that the chips break, fall off and do not interfere with further cutting. If this is neglected, the chips may hush up the threads.
Just need to cut 4-5 full turns of thread.
The thread on the pipe is finally cut. -svoimirukami.ru/uploads/posts/2018-06/medium/1530182360_14.jpg "style =" max-width: 100%; " alt="How to cut the thread on the pipe"> Also note that the cutters in the die have a small cone. This is to ensure that it is easy to start and cut the thread. As a result, I lead to the fact that the final turns may be incomplete and undercut in depth. Therefore, in order to get 3-4 full turns of pipe thread,visually it is better to cut 6-7 turns. After all the work, you can check the thread by screwing on it any adapter or fitting.
The thicker the pipe, the greater the effort it takes to rotate the nozzle. The method is not cunning, proper skills are almost not required, even a beginner can handle it. It is impossible to twist the thread, so you should not be afraid.