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The hatch is cast-iron. Use in urban environments

Such material as cast iron is known for a long time and is very widely distributed both in domestic and in industrial use. For domestic use, frying pans, bowls and other household utensils made from such material are made. In the distant past, our great-grandmothers used even heavy irons, heated with coal, for ironing different kinds of linen. In industry, this material is also widely used and used for the production of heating boilers, various types of hatches and other devices for construction and industrial needs.

Such a product, as an iron hatch, is necessary in everyday urban life. They use it in sewer, telephone and thermal city networks.

Sewage cast-iron hatches of the wells are used to close the cavities of communications with sewage. As a rule, these products are widely used in urban conditions. But they can also be used for private sewage wells shutdown , for example, in cottages or in out-of-town apartments for permanent residence. Hatches are necessary for the proper operation of the urban sewage system. Strong floors provide security for people and transport in a metropolis, firmly closing the hole. The pig iron is manufactured in accordance with the rules and standards of GOST. For the manufacture of products, gray cast iron is used, which is a more durable material for long-term operation in a wide range of climatic conditions. All hatches are divided into two types: light and heavy.

As it becomes clear from all of the above, these products will be widely used for a long time. There are no substitutions for them yet.

There are special conditions in which it is recommended to use products of this type. The cast iron hatch must be operated in strict accordance with the loads on the roadway, where it will be located. For roads with high traffic intensity, it is recommended to install trunk, specially designed for these purposes products with a workload of 25 tons. Also in this case, you can use hatches with a load of 40 tons. For use on lawns or pedestrian sidewalks use the lightest products with a working load of 3 tons. On city roads with an average degree of congestion, you can install hatches at 15 tons. In accordance with the marking and the degree of gravity, the cast iron hatch has a different weight, and, naturally, this affects its cost.

Each batch of products is tested for compliance with GOST standards. The control is carried out by sampling from the lot of some specimens. Thus, the product is tested by measuring the ultimate load, which is carried out on a hydraulic press intended for this purpose under laboratory conditions. If the inspection is successful, documents of compliance and safety are issued. Each batch of products is necessarily accompanied by a set of documentation, which confirms compliance with GOST.

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