Truba obechayka, Dnipropetrovsk region.

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A metal shell is a short tube of cylindrical or conical shape. In section, the part looks like a ring or a rim.
The device is used in the construction of non-standard technological and civil pipelines. The welding seam of the equipment is not intended for high loads. Therefore, the element works in systems with low pressure without a strong temperature difference.
The shell is used in aircraft, rocket, ship, and mechanical engineering; chemical, oil and gas industries. The detail is used as:
• hatch walls;
• blanks for chimneys, gutters, ventilation, gas pipes;(//tractor-service.com)
• walls of welded vessels (reservoirs, column equipment, tanks, boilers and other containers);
• supports during the construction of bridges, sewage systems, hydrotechnical constructions;
• protective casing for the pipeline section;
• casings for pipeline fittings (branches, tees, nozzles, supports), machine parts (crane drums, flanges).

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