Sewer plastic pipes are gradually replacing their less technological predecessors. Today they are quite common in private and industrial construction.
Features of plastic sewer pipes
The first and most important property of plastic material for the installation of sewage is expressed in high quality. Such pipes demonstrate a long service life, but are not very expensive. In addition, their installation can be done by both a professional and a home master who does not have impressive experience in conducting this kind of work.
Sewer plastic pipes do not require the use of special expensive equipment, and after their installation they do not need to be repaired for several decades. Plastic products for the installation of wastewater systems are characterized by impressive chemical resistance; after exposure to aggressive media, they remain intact. If during the installation all the rules are observed, the system will last for 50 years or more, and the installation of the described material can be carried out both outside and inside the buildings.
Installation Technology
Sewer plastic pipes are laid in a certain sequence. Initially, you have to stock up on blanks of material, the dimensions of which will correspond to the areas in the room or on the street designated for installation. Then you can start laying pipes, connecting them in the process with shaped elements. As soon as the system is assembled into a single whole, you can proceed to its installation in the wall. If any zone has cast-iron pipes, then plastic bends can be connected to them.
Preparatory work
Sewer plastic pipes can be cut using a hacksaw. But it is recommended to use a special tool, which when cutting allows you to get a chamfer. When carrying out such work manually, the edge of the product must be carefully cleaned, providing an angle of 150 °, this will eliminate the likelihood of failure of the sealing ring.
Installation can be carried out using the following materials and tools:
- clamps;
- pipes;
- fitting;
- hacksaw.
Styling
Installation of elements should be done only after special grease is applied to the smooth end of the components. In this case, the rubber gasket will last for a longer time. The smooth edge of the element must be removed from the socket, which will allow for fastening. In order to fix the system, use clamps mounted under the sleeve. The horizontal step between the clamps should not be ten times the diameter of the pipe , as for risers, this distance is approximately 200 cm. The most suitable step from the system elements to the pipe is 4 mm. When installing, do not make the mount rigid, as this can create internal stress, which is unacceptable.
Screed and wall drainage
Before connecting sewer plastic pipes, you should consider whether it may be necessary to enclose the components of the system in concrete. At the same time, one should not miss the moment that the structure will have to have temperature grooves whose width is 10 mm. It is important to reliably strengthen the elements so that they do not change their position. The grooves between the couplings and sockets should be sealed with construction tape.
Plastic sewer pipes, the price of which can vary depending on the parameters, can also be laid in the walls. In the future, they can be hidden under a layer of plaster. At the same time, plastic products should be protected, for example, with corrugated cardboard, but fiberglass is also excellent for this.
Pairing polymer and cast iron elements
If you live in an old-type building, then when changing the sewage system, you may have the task of connecting plastic and cast-iron pipes. In this case, it is necessary to use a transition pipe, which has the inner diameter you need. The pairing of polymer and cast-iron pipes is carried out by means of a gasket.
The cost of sewer plastic pipes
Sewer plastic pipes, the price of which varies depending on the characteristics, can have a different socket, wall thickness and length. For example, products that have a bell 50 are used when routing networks that run household waste. The scope of their application is generally quite wide: they are common in the installation of plumbing fixtures, risers in buildings for any purpose. The described pipes are based on gray polypropylene. Such a material is on average 20 times lighter in comparison with analogues made of cast iron. He is not afraid of the effects of hot water up to 95 ° C, as well as chemicals. Such pipes can have a length of 20 to 3000 mm, and the price varies from 32 to 156 rubles, respectively.
If you need a plastic sewer pipe 100, this means that its diameter will be 100 mm, therefore, you can choose products whose wall thickness will be more impressive (2.7 mm), but also the price for the same length as mentioned above , will vary between 65-400 rubles.
Sewer pipes, the diameter of which is 100 mm, are intended for installation of external pressureless systems through which sewage migrates by gravity. These elements are designed for systems that are not exposed to significant soil loads.
Before starting the installation of the sewage system, it is necessary to calculate which plastic sewer pipes and fittings you will need, what diameter and characteristics they should have. This will allow you to perform work in accordance with all the rules, which will provide the sewage system with a long lifespan, and will free you from the premature need for repairs.