Polymer Piping An external sewage pipeline drains waste water from a building to the nearest treatment plant. Its installation should be carried out reliably to exclude a possible impulse, as the consequences can be catastrophic.
Practice has shown that it is the polymer pipes that can be used as a reliable sewage system. To date, there is a regulatory document "GOST - Pipes pressure head".According to its requirements, pressure polymer pipes, by their characteristics, are much more than the same steel or reinforced concrete analog.
To begin with, it should be understood that the polymer pipeline is made of:
- polypropylene;
- polyethylene;
- polyvinyl chloride.
Polymer pipes have a number of positive properties, due to which they can be used in various fields. These properties include:
- resistance to corrosive environments and chemicals;
- anticorrosion;
- low price;
- durability.
Pressure sewer pipes and their types
The pressure pipeline from polyethylene is used both for the construction of new sewer networks and for the repair of old ones. They transport liquid substances with a temperature of up to 65 degrees Celsius. Polyethylene is resistant to chemicals, therefore it is possible to transport not only liquid, but gaseous substances through pipes from this material. Polyethylene pipes with a diameter of not more than 110 mm are connected by means of special fittings or by welding.
Pressure sewer pipes from PVC are also in demand. They are often called bell-shaped, since their connection is by means of a bell with a rubber seal.
Pressure sewer pipes made of cast iron
For the organization of pressure sewer networks, a cast iron pipeline with the name VCCHG is very suitable. It is produced by the method of centrifugal casting, and this abbreviation is deciphered as high-strength cast iron with spherical graphite. From one end of such a pipe is a bell, and the other is a smooth end. Most often, sewage pressure pig-iron pipes are supplied with flanges on both sides.
Such a sewage pressure pipeline is used for channel and channelless underground installation. It has high strength, plasticity and it is also durable. Can be installed at considerable depths of occurrence. In detail, with the characteristics of cast-iron pressure sewer pipes can be found in the relevant GOST.
Asbestos cement and asbestos pressure pipes
This type of pipeline is resistant to corrosion, fouling and decay. Poorly conducts heat, and can be operated at any water temperatures. The service life of asbestos-cement pressure pipes is quite long. Their standard length is 3m and the diameter varies depending on the purpose of the pipeline.
In addition, there are also reinforced concrete pressure sewer pipes, which are divided into smooth, cylindrical and bell-shaped. Their drawbacks include the weight and complexity of the installation.
Based on all of the above, it can be concluded that polypropylene pressure pipes are the best option for installing a sewage system. Very soon, this type of product will be removed from the market and will replace its cast-iron, asbestos-cement and reinforced concrete competitors.
