Plastic sewer pipes. Sewer plastic pipes. Characteristics, prices, installation
Pipe range
In the construction of modern and repair of old sewer communications, plastic products are increasingly used. This is due to their low weight, durability and low cost compared to cast iron and other metal counterparts. During production, the dimensions of products may differ significantly, which is determined by the technical conditions and the needs of communications.
Pipe parameters
Without exception, all plastic products have the main common characteristics:
- Inner diameter - is one of the most important indicators when choosing sewer elements.
- External size.
- Wall thickness.
- Length.
- Weight.
- The material from which the pipe is made.
The options for using products in each specific case depend on these parameters. If the sewer pipe is chosen incorrectly, this can lead to a malfunction of the entire system, blockages, traffic jams and, as a result, cost overruns. In addition, incorrectly selected parameters of plastic elements significantly complicate the installation work.
The use of plastic pipes depending on the size
The sewer system is divided into:
- internal
- outer
For each type, the type of material and dimensions of sewer plastic pipes are different. What does it depend on? First of all, on the throughput and strength of the elements that provide high-quality abduction Wastewater.
An external, or outdoor, system must meet certain requirements:
- High strength of the pipeline, since in most cases it is laid underground.
- The ability to divert wastewater in the required amount for a certain period of time.
- Resistant to corrosion and temperature fluctuations.
- Reliability of connection of separate parts.
Inside the building, the requirements for pipes are slightly different, because their operation takes place in a more gentle mode:
- no mechanical load
- ambient temperature is usually above 0 degrees
- the number of drains from one plumbing fixture is much less
The size of the section of plastic products depends on the type of plumbing fixtures.
Which pipe to use when?
Plastic sewer pipes
Let us consider in more detail how a plastic sewer pipe is used, the dimensions of which depend on its purpose:
- A product with a diameter of 110 millimeters is mainly used to divert drains from a toilet bowl, which has the same outlet size. Depending on the amount of wastewater, this pipe is connected to a septic tank or a cesspool.
- Products with a diameter of 50 and 75 millimeters can be connected to various plumbing fixtures - to a bath, shower, washbasins, washing machine. Smaller elements are also in demand for connecting devices in a private house or city apartment.
- The wiring inside the premises and between floors is carried out using pipes with a diameter of 50 millimeters.
- If the volume of wastewater discharged from the house is increased, for example, when using a bathhouse, a pool, or many plumbing fixtures are connected, then products with a diameter of 200 or even 300 millimeters are used for the construction of external sewage.
In each case, the dimensions and sections of the pipes are different. Therefore, before building sewer system it is necessary to make accurate calculations of its parts and elements.
The wall thickness of the pipes also depends on the size of the diameter. The longer the product, the thicker its walls, which means it has more weight. This should be taken into account when building an autonomous sewer.
Features of the installation of plastic sewer pipes
plastic pipes
When building a sewerage system of a private house, the features of laying the pipeline should be taken into account:
- It is important to make the slope necessary for the unhindered removal of wastewater and waste. Its average value is 2-3 centimeters per linear meter of pipeline length. If the slope is more than normal, then build-up is likely to form on the inner walls, which will gradually lead to the formation of traffic jams and blockages. If the slope turns out to be less than required, or is absent at all, then the drains will not leave the premises of the house on their own - the system will simply become inoperable.
- To connect elements of different diameters, there are special adapters, tees and bends, which provide a sufficient level of reliability.
- To prevent the appearance of unpleasant odors in the house, ventilation is essential. To do this, a plastic or metal fan pipe is removed from the septic tank to a height of up to 4 meters. Its diameter usually ranges from 50 to 110 millimeters.
- In multi-storey city buildings, a sewer riser passes through all floors, the diameter of which must match the outlet pipe from the toilet bowl - 110 millimeters. He is taken to the roof of the building and left open. Due to the fact that it communicates with the atmosphere, with the simultaneous exit of drains from different bathrooms, a vacuum is not created, which can lead to the appearance of unpleasant odors.
- Products for external and internal sewerage systems differ not only in parameters, but also in color. For example, polyvinyl chloride (PVC) pipes for installation inside a building are gray, and outside the house they are orange or light brown. In addition, the outer pipes are characterized by greater strength and resistance to mechanical stress, temperature extremes and UV radiation.
Important! The size of plastic pipes for the sewerage system depends primarily on the amount of wastewater discharged from the building. It is important to take this into account when calculating and choosing components and additional elements.
Advantages of plastic products
PVC pipes for outdoor and indoor
Plastic pipes have a number of advantages over metal counterparts:
- No corrosion.
- Durability and reliability.
- Light weight and built-in couplings for connection greatly facilitate and reduce the cost of installation work.
- Fungal deposits do not form on the inner walls, which can reduce throughput pipes.
- Low price compared to metal counterparts.
Conclusion
Widespread use of plastic pipes for construction new system sewerage and repair of old elements due to their clear advantages over products made from other materials.
A large selection of pipes of different sizes allows you to install in a shorter time and with high quality. The main thing is to choose the right elements of the required diameter for these operating conditions, as well as pay attention to the quality of the material. Subject to all the rules for organizing the sewer system, the comfort of living in a city apartment or a private house will be at the proper level.
Similar posts
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 plastic material for expressed in high quality. Such pipes demonstrate a long life and are not very expensive. In addition, both a professional in their field and a home master who does not have impressive experience in carrying out this kind of work can do their installation.
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 waste systems are distinguished by impressive chemical resistance; after exposure to aggressive environments, they remain intact. If all the rules are followed when laying, the system will last for 50 years or more, and the described material can be laid both outside and inside buildings.
Installation technology
Sewer plastic pipes are laid in a certain sequence. Initially, you will have to stock up on material blanks, the dimensions of which will correspond to the areas in the room or on the street allotted for installation. After that, you can start laying pipes, connecting them in the process with shaped elements. Once the system is assembled into a single whole, you can proceed to install it in the wall. If a zone contains 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 that, 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 possibility of failure of the sealing ring.
Installation can be carried out using the following materials and tools:
- clamps;
- pipes;
- fitting;
- hacksaw.
Carrying out styling
Installation of elements should be carried out only after a special lubricant has been 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 fastening. In order to fix the system, clamps mounted under the coupling should be used. Horizontally, the step between the clamps should not be ten times larger, as for the 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.
Sewerage in screed and wall
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, the width of which is 10 mm. It is important to securely strengthen the elements so that they do not change their position. The grooves obtained between the couplings and sockets should be sealed with construction tape.
Plastic sewer pipes, the price of which may 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 perfect for this.
Pairing polymer and cast iron elements
If you live in an old-style building, then when changing the sewerage system, the task may arise to connect plastic and cast-iron pipes. In this case, it is necessary to use a transition pipe that has the inner diameter you need. Pairing of polymer and cast iron pipes is carried out by means of a sealing gasket.
The cost of sewer plastic pipes
Plastic sewer pipes, the price of which varies depending on the characteristics, may have a different socket, wall thickness and length. For example, products that have a socket 50 are used when wiring networks that carry household and fecal waste. The scope of their application is generally quite wide: they are common in the installation of plumbing fixtures, risers in buildings of any purpose. The described pipes are based on gray polypropylene. Such a material is on average 20 times lighter than analogues made of cast iron. He is not afraid of the impact 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.
Which is equal to 100 mm, are intended for the installation of external non-pressure systems, through which they migrate by gravity. These elements are intended for systems that are not subjected to significant loads from the soil.
Before you start laying the sewer system, you need to calculate what plastic sewer pipes and fittings you will need, what diameter and characteristics they should have. This will allow you to work according to all the rules, which will ensure waste system long lifespan, and you will be freed from the premature need for repairs.
Sewerage is the simplest communication system of an apartment or, which is quite easy to assemble with your own hands. Perhaps this is the only system for the installation of which, first of all, it is not the subtleties and nuances of the work that are important, but knowledge of it. constituent parts, operating with which you can collect sewers of any scale. They will be discussed in this article, in which we, together with the website site, will study in detail plastic pipes for sewerage and deal with the purpose of the constituent elements of the drainage system.
What pipe to use for sewerage
Plastic pipes for sewerage: varieties
There are not so many varieties of sewer pipes - one might even say that there are very few. They can be classified in just three ways: by purpose, diameter and length.
In principle, this is all that you have to work with during the installation of sewer systems. Much of the above is not even useful for use in the bathroom - as a rule, pipes with a diameter of more than 100 mm are not used in houses and apartments. If you are wondering which pipe to use for sewerage in an apartment or house, then the answer to it will be a gray pipe with a diameter of 32 to 100mm.
What plastic sewer pipes are used to assemble drainage systems in apartments and houses, you can see in the video.
What sewage is assembled from: the main elements and their purpose
We figured out the pipes themselves, now it remains to study other components of the sewer system, and there are not so many of them.
Fasteners for sewer pipes photo
At the end of the topic, I want to answer one frequently asked question - which sewer pipes are better? Polyethylene, from which sewer pipes are made, decomposes in the form of ordinary bags for 50 years, and pipes take twice as long. No repair lasts that long. Therefore, you should not look for German, Chinese or any other pipes - in this respect they are almost all the same. Their high-quality installation is ensured by seals - you should pay attention to them, wondering which pipe is better to use for sewage?
There are three options here: gum with one feather, with two and with a plastic ring. The latter provide the most reliable seal, but it is difficult to assemble such pipes. As an alternative, you can use conventional double-feather seals without a plastic insert.
As you can see, sewer pipes, despite a large number of auxiliary connectors are not a complex system - their installation is quite simple. But we will talk about this in the next article.