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Protective cap for pipes and poles

Protection for pipes and poles

As you know, metal and asbestos cement pipes, as well as wooden poles are usually used for the construction of fences, trellises, load-bearing structures of various buildings. However, with pipes used as fence supports, trouble can happen in winter. If water gets into the pipe, then in winter it will freeze, and the ice will break the pipe. Therefore, usually the upper ends of the pipes are covered with film, cans and other improvised materials, protecting them from rain. The design of the protective cap for pipes or pillars shown in the figure will not only save you from such troubles, but also decorate the site.

Protective cap for pipes and pillars
This is how the protective cap is formed:
a — the cap on the pipe; b — the pattern of the cap.

The manufacture of caps will not require much time and money. The blank of the hood is cut out with scissors from pieces of tin, galvanized iron, aluminum or steel sheet. The cap is folded by hand, the edges of the pattern are overlapped (the width of the edges on each other is 15 mm) without any devices, the ends are fixed with rivets made of aluminum or copper wire. Two or three steel strips with a width of 15 are riveted to the cap 20 mm and a thickness of 1...2 mm, with which the cap is installed on the pipe. The dimensions of the caps and their blanks for the most running pipes are given in the table.

The dimensions of the protective cap, as well as its patterns, depending on
from the diameter of the support pipe

Pipe outer diameter, mm Dimensions, mm
D H R L
48 and less 70 60 70 140
60-76 100 85 100 200
90-100 120 105 120 240
120-140 160 140 160 320
160-200 220 190 220 440

It is better to paint the surface of the hood with oil paint. By the way, it is recommended to protect the ends of wooden pillars with such caps, protecting them from getting wet and rotting. Fasten protective caps on posts with screws or nails. Such caps are also suitable for protection from atmospheric precipitation of ventilation and chimneys, but they are installed, of course, with an appropriate gap.

In the section «Repair and construction»

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