What do we have to deal with?
Cast iron is a material known for its incredible strength and rather heavy weight. Due to the density of the structure of the material, products made of cast iron are obtained by massive, strong, capable of withstanding heavy loads. That is why such pipes become elements of sewage and drainage systems.
Despite the development of chemical production and the active use of plastic pipe variants, in the majority of cases, a serious material is used for laying an external water pipe - cast iron. Cast iron options are most often used for the construction of sewer systems, which are experiencing very large loads, not comparable to household.
Buildings in which specialized catering establishments are located, factories for processing meat and other animal products are a constant stream of waste. It is here that most often there are various breaks of cast-iron pipes, which you need to eliminate immediately.
As the repair procedure for such a material is quite complicated, specialists say that once a year mandatory inspections should be carried out, only such measures will help to avoid complex repairs.
How to start repair?
The combing of cast-iron pipes is used when it is necessary to replace the element and it is impossible to repair the damage from the "outside" side, that is, directly at the accident site. First of all, you need to conduct preparatory work - carefully inspect the pipes and understand how they are welded to each other.
Quite often there is a situation where pipes are filled with special material, gluing their parts. During the time spent under the ground, the elements are so strong together with each other that it is impossible to disconnect them without effort.
Some experts recommend trying to use a gas cutter, such a tool will help quickly remove the composition, fastening elements, and disconnect the pipes.
To correctly answer the question of how to cut a cast-iron pipe, you need to understand that working with the material will not be easy, during the procedures you need to turn off the water in the whole house or area, if it is a repair on an important site.
You can prepare the pipe for repair with special tools. The burned or damaged part is cut down by the Bulgarian, a new part of the pipe is installed in its place, the seam is cemented with cement and a construction bandage.
How to prevent the problem from now on?
Despite its excellent physical characteristics, cast iron is quite fragile. Under the influence of water and chemical reactions that take place in it, the material begins to deform, as a result, the pipes react sensitively to all changes, including temperature changes, become brittle and can not withstand a great deal of pressure.
Qualitatively conducted chasing of cast-iron pipes is a complicated process, during which a part of the pipe is replaced with a certain margin for expansion. The new part of the pipe is inserted into the socket, the seam is securely fastened with resin strands, the caulk tool allows tight fitting of the threads and fastening them.
Practice shows that the resulting crack in the cast-iron pipe is part of the problem that will grow if not to take drastic measures. Spinning holes with special compounds gives a temporary result, after all, you still have to make a replacement. That's why it's easier to deal with the breakdown right away.