No industrial or residential building can function normally without a reliably arranged sewer system. Sewerage belongs to the category of the most important engineering systems, which are a rather complex technology, which uses a variety of details, including, of course, pipes. For a long time, steel galvanized pipes were used as the main material for sewage systems and water supply systems. However, technological progress, interest in durable, reliable engineering systems, in reducing the cost of metal and operational costs, caused the need to create alternative materials. One of these popular materials became polymers.
Currently, the market for plastic pipes is developing at a rather rapid pace. When laying external sewer networks, it is recommended to use plastic pipes made of polyvinyl chloride and polypropylene, as they have a huge list of significant advantages. If you compare polypropylene with polyethylene and plastics, then it has higher rigidity, strength and hardness, is more resistant to abrasion and is not committed by cracking.
The main advantages of pipes made of plastic include:
• the ability to use them for external, and for hidden laying;
And plastic pipes are environmentally friendly. They cannot become a source of fire, distinguish free -containing substances during combustion, and, therefore, cannot be destroyers of the ozone layer.
• sufficient durability. Their life (about 50 years) is several times more than steel pipes;
• resistance to corrosion processes. Since polymers do not have the ability to enter electrochemical reactions, so pipe from plastic cannot conduct electric current, which is very important when passing the sewage system near the electric cables. During the entire life of such pipes, no electrochemical (destructive) corrosion will occur;
• resistance to short -term low and high temperatures of waste fluids and low thermal conductivity. Polypropylene pipes are able to work with hot drains, not destroying much longer than PVC pipes;
• resistance to the process of melting and thermal democulation;
• good resistance to salts, lime deposits, to mineral acids and alkalis from which pipes made of other materials are rapidly aging. All this helps to increase the reliability of household sewage systems.
The advantages of sewer plastic pipes should also include:
• The property of resistance to abrasive wear. Due to the smoothness of their inner surface, such pipes are able to ensure the speed and efficiency of the outflow of sewage drains from the building, as well as reduce the possibility of malfunctions and blockages in the system. Even in the case of intensive movement and a fairly high density of the abrasive particles for a long time, damage will not occur in plastic sewer pipes, and the thickness of such pipes will not decrease;
• the presence of a very low coefficient of roughness, which favors the fact that plastic pipes do not overgrow by limestone deposits and other decay products. And this allows such sewer pipes to mount with a minimum slope;
• the presence of low noise of flows;
• the neatness of the species, therefore, with an external laying, they do not need staining;
• even at low temperatures, they have excellent resistance to blows, which is very important when delivering, loading and unloading, installation work to the place of laying, loading and unloading;
• have a small mass, which reduces transportation costs;
• Fast, high -quality, simple installation, which is a very important property in case of urgent construction. All these advantages of plastic sewer pipes allow you to use them in different industries.
The advantages of plastic pipes
It turns out that the use of plastic pipes is economically profitable, since polymers are much cheaper than metal. At the laying place, sewage is external and internal. At the same time, the outer sewage system has pipelines of much larger length than internal pipelines, since they have to experience a large load. Typically, external sewage pipelines of red -brick or orange, have different stiffness, length and diameters.
Pipes that are made for external sewage can have in a diameter of 500, 400, 315, 250, 200, 160 or110 millimeters. And in length they can reach 6000, 3000, 2000, 1000 or 500 millimeters.
Depending on the place of styling, plastic pipes of a certain class of stiffness can be used. However, the most commonly used pipes that have ring stiffness SN4 (4 kN/sq. m). It is precisely such a strength of plastic pipes that is quite enough for the installation of the external sewer system. And the most strong is the pipe with stiffness SN8.
Basically, the external sewer system is intended for use in the summer. So that it can be used in winter, you should have a high -quality insulation of the gasket of the heating cable and the pipes themselves.
From the above, we can conclude that the polymer pipes are a reliable, strong and durable basis of the sewage, so necessary to maintain each industrial and residential building in purity and order.