How to make pipes from galvanized sheet yourself

Galvanized steel pipes are an integral part of the drainage system of any home. The purchase of ready-made gutters is quite costly. How you can make your own drainpipes and thereby significantly save money is described in this article..

Buying ready-made elements of the drainage system is quite expensive. So, for example, a gutter made of galvanized metal costs about 100 rubles / m, a drain funnel – 160 rubles / piece, a pipe with a diameter of 100 mm – 110 rubles / m, an elbow for a drain pipe – 110 rubles / piece. If you calculate the cost of all the elements required to equip the drainage system for the whole house, you get a pretty impressive amount. The natural question is how to save money? The answer is simple – do all the elements yourself..

Let’s count. The downspout requires galvanized iron. The price for a sheet of 2500×1250 mm is 600 rubles. To make a pipe with a diameter of 100 mm, a strip of metal with a width of 340 mm is required – this is, in fact, a circumference with a diameter of 100 mm, plus bends. 7 stripes with this width come out of one sheet. We get: 600/7 = 85 rubles. for a pipe 1250 mm long, or 68 rubles / m – the cost of one meter of galvanized pipe. Saving more than 60%! On other elements it will be even more.

If the above calculations convinced you of the need to learn how to independently manufacture galvanized pipes and other sheet metal elements, then let’s start learning. It is necessary to start with the simplest – with pipes. How this is done will be described in this article..

Required tools and materials

In order to make a pipe with a diameter of 100 mm, we need the following tools and materials:

1. Wooden or rubber mallet. Generally speaking, the quality of the finished product will first of all depend on the quality of this tool. The mallet should be heavy enough, but such that it is easy to control the force of the blow, not very hard, but at the same time dense enough.
2. Metal scissors. Any will do, the main thing is that it is convenient for them to cut metal on large planes.
3. A metal corner, at least 1 m long, installed on the edge of the workbench table. It is on it that the metal will be flexible, so it must be stable and sufficiently massive..
4. Steel pipe 60–90 mm in diameter, fixed horizontally – “gun”. It will be used to assemble products. Accordingly, its length should also not be less than 1 m..
5. Ruler.
6. Scraper for metal. Any sharpened metal rod will do, up to a large nail.
7. Actually, the sheet of galvanized metal itself is 0.5 mm thick.

We make a pipe from galvanized iron with a diameter of 100 mm

1. Cut off from a solid sheet of metal a workpiece with a width of 340 mm on one side, and 330 mm on the other. The strip is narrowed so that the finished pipe goes into the next one according to the principle “dad-mom”.

It makes sense to immediately mark the entire sheet and set aside segments on each side in turn – on one side 340 mm, 330 mm, 340 mm, 330 mm and so on, on the other, respectively, 330 mm, 340 mm, 330 mm, 340 mm. If you do not plan to connect the finished pipes with each other or other elements, then mark out rectangles with sides of 340 mm.

2. We begin to make seams for the pipe on both meter sides. To do this, on a metal corner, bend the edges of the sheet with a mallet 7 mm on both sides, 90 ° in different directions relative to each other.

3. Turn the workpiece over, with a bent corner up and with a mallet we finish the angle up to about 130-150 °.

4. Make another fold. The workpiece should protrude 1 cm from the corner. We tap with a mallet along the entire length of the corner. Strikes should be strong, tight and confident. In this case, the mallet must necessarily lie down clearly on the plane of the corner, without deviating either to the left or to the right, otherwise the seam will simply flatten.

5. The end result is a sheet with the following folds at the edges:

6. We squeeze the workpiece around the “gun” pipe by hand.

7. We hook both bends to each other.

8. We put the workpiece on the pipe “cannon” and beat it with a mallet at the place of adhesion of the corners until they completely flatten.

9. The pipe is ready.

10. Ideally, you can slightly expand the pipe on the wide side to facilitate joining with each other, and roll rings at both ends to ensure rigidity, however, as obtained, the pipe is serviceable. If no mistakes were made during the marking, then it will easily dock with other elements, including factory-made ones..

In the end, it should be noted that gutters are not the only use for such pipes. Ventilation systems, various chimneys – everywhere galvanized pipes will find their application, so the ability to make them with your own hands will serve you more than once in saving money.