Sewer pipe dimensions. Plastic pipes for sewerage - types and sizes Sizes of plastic pipes for sewerage table

One of the important factors that will have to be implemented in the process is the correct calculation of the characteristics for each of the mounted sections. Calculation work is important because its correct implementation allows you to reduce costs and achieve the desired efficiency.

Anyone is ready to offer a wide range of pipes with different lengths, diameters and other individual characteristics.

To create sewer systems, products with a diameter of less than 50 mm are not used, 32 and 40 mm pipes are used for electrical wiring. But 50 mm parts are used to create indoors and connect plumbing units.

Table 1:

Nominal diameter	Bell inner diameter	Wall thickness including e, e 2 min, e 3 min	Flare length including a min, c max	Free end length
32	32.3	1.8;1.6;1.0;	24;18	42
40	40.3	1.8;1.6;1.0;	26;18	44
50	50.3	1.8;1.6;1.0;	28;18	46
75	75.4	1.9;1.7;1.1;	33;18	51
110	110.4	2.7;2.4;1.5;	36;22	58

The consumer should know the following about 110 mm parts: such products are used, despite similar diameters, they have different properties, therefore, it is worth purchasing components for indoor use, and for outdoor use. The low cost and the search for ways to improve industrial mechanisms led not only to a significant, but also to a decrease in the cost of both independent parts and the installation estimate as a whole.

Table 2:

Nominal diameter	Smallest flare inner diameter	Bell length (including normal and extended)	Assembly length (including standard and extended)
110+0.3	110.4	58;201	58;113
160+0.4	160.5	74;214	74;123
200+0.5	200.6	90;226	90;133
250+0.5	250.8	125;265	125;167
315+0.6	316.0	158;272	158;171
400+0.7	401.2	178;291	178;188
500+0.9	501.5	200;323	228;242
630+1.1	631.9	228;361	228;242

The minimum length of components with a diameter of 125, 160 and 200 mm is 500 mm, this can be a lot during installation. In this state of affairs, the extra segment can be separated from the main structure using a conventional hacksaw. We must not forget that it will only be provided that the end of the cut product is carefully processed.

160 mm gauge is traditionally suitable for both rain systems in low-rise (private) houses. In the context of this situation, as a rule, lengths of 3 meters are used. A curious feature of parts with a diameter of 200 mm is that this is the limit for components available outside the scope of an individual order up to 100 cm long.

Table 3:

Diameter (mm)	Bell length (mm)	Wall thickness (mm)	Weight 1 meter (kg)
125	140	3,2	2.029
160	165	3,2	2.626
200	185	3,9	3.949
250	210	4,9	6.200
315	230	6,2	9.926
355	240	7	12.594
400	260	7,9	16.000
450	280	8,8	20.104
500	300	9,8	24.925
630	335	12,3	39.66
710	420	13,9	50.824
800	430	15,7	65.068
900	450	17,6	82.281
100	470	19,6	102.056

The assortment of 250 mm parts is multi-layered, which allows it to be used efficiently. The design, assembled from such components, is not “afraid” of loads, is resistant to mechanical stress, and has an impressive service life.

Advantages of PVC material

It is important to understand that PVC pipes for wiring and sewer have a lot of significant competitive advantages, the main of which are:

Impressive, which usually lasts at least half a century;
No need to maintain an object assembled from PVC;
The minimum weight greatly facilitates not only storage and transportation, but also;
Low, in comparison with analogues made from other raw materials, cost;
The impossibility of clogging the structure, due to the smooth internal structure of the part;
Simplicity and the ability to quickly perform installation work.

The goods in question are such that their assembly does not require the use of complex and expensive labor: all the actions that the situation implies (in some cases, even digging trenches for external sewage) can be done by hand, using a socket is not a complicated process and special does not require skills.

In addition, ease of assembly leads to high speed. In comparison with analogues that require either the use of compression couplings, the assembly of the pipes in question is carried out many times faster.

It is important to consider that the use of such products is a great opportunity to save not only time, but also money, since you do not need to pay for the services of a master or a team of craftsmen who will install the drainage structure.

To climatic influences, as well as to the influence of chemicals, these pipes are practically invulnerable, while they are often used for transporting rarefied media (gaseous substances).

The video shows the dimensions of the sewer pipes:

Sewer plastic pipes in many areas of human activity have almost completely replaced traditional metal pipes today. The first one is based on:

polyethylene;
polyvinyl chloride;
polypropylene;
polybutylene.

The most popular for arranging modern sewer systems are PVC pipes, because they are resistant to aggressive substances that are in domestic and industrial wastewater. Those elements that are in the ground can also have a negative impact.

Why you should use plastic

If we are talking about high-quality plastic pipes for laying sewers, then they have a perfectly smooth surface, so clogging occurs extremely rarely during operation. During installation, there is no need to use any special tool, a hacksaw for metal will be enough for cutting, and its fine teeth practically do not form burrs.

Key Features

Sewer plastic pipes are made from complex polymer compounds, which are obtained in the process of using the latest technologies. This guarantees durability and reliability. If you want to choose especially durable products, then metal-polymer sewer pipes should be preferred.

Plastic pipes are quite easy to install, their laying requires less labor, this applies not only to the inside of the house. Such products are characterized by excellent throughput, they are easy to bend at a certain angle. Pipes can be laid independently. They have many benefits, including:

reasonable cost;
no need for cathodic protection;
low thermal conductivity;
reliable protection against the spread of viruses and bacteria;
durability;
resistance to chemical influences, corrosion and external aggressive environment;
slight weight.

Sewer plastic pipes are ready to serve more than 50 years. They do not require constant maintenance.

Size Information

The described products can have a variety of sizes. If we are talking about an impressive diameter, then it is designed for an increased load, therefore, such pipes are installed to service buildings of social facilities, cottages and apartment buildings. For example, a diameter of 200 mm is suitable for a hospital, hotel or sauna.

If the diameter is increased to 300 mm, then such a pipe is suitable for the operation of industrial facilities. In individual construction, products of small diameter are required. A 150 mm riser will not be fully utilized, even if there are several bathrooms in the house. Square pipes can be used to solve the problems of irrigating personal plots. To organize drains from individual appliances such as a washbasin, shower and bath, you can use 75 mm pipes.

To ensure the operation of the toilet, it is necessary to use a pipe of 100 or 110 mm. When choosing dimensions, it is also important to take into account the wall thickness, which will depend on the diameter of the pipe. If the cross section is 160 mm, then the wall thickness will be 3.9 mm. In this case, a parameter of 110 mm will indicate that the wall thickness is 3 mm.

The weight of the pipe also depends on the diameter. For example, a 160 mm pipe weighs 2 kg, while a 110 mm pipe will give a weight of 1 kg. Sewer plastic pipes also have a certain length. According to state standards, manufacturers produce individual segments from 1 to 6 m, with a step of 1 m.

Specifications

The plastic sewer pipe, the characteristics of which you should know before purchasing this product, has a high mechanical strength. This is due to the three-layer manufacturing technology and external corrugation. That is why these elements can be installed to a depth of up to 8 m. The pipes are resistant to aggressive environments. This is especially true for PVC-U materials, because they are used to transport gases and chemical liquids.

The internal pressure will depend on the wall thickness and design, the maximum value can be up to 16 bar, while the minimum is 6 bar. The main disadvantage of these pipes is the temperature limitation. The maximum temperature is 65°C while the minimum is -10°C.

Some models allow short-term exposure to temperatures up to +90 °C. The specific gravity may vary depending on the wall thickness and diameter, but on average it is 2 kg per linear meter. At break, the maximum tensile strength is 50 MPa.

Characteristics of plastic sewer pipes for indoor laying

The sizes of plastic sewer pipes have been mentioned above. But this parameter cannot be called the only one that should be interested in when buying these products. For example, it is important to pay attention also to the color that indicates the purpose.

A gray tint indicates that you have a pipe for an internal sewage system in front of you. It is distinguished by the smoothness of the walls, and is connected by a bell. The most popular sizes are: 32, 40, 50 and 110 mm. The length can vary from 315 to 3000 mm. Considering the stiffness conditions, the wall thickness should be selected. However, for gravity systems, this parameter cannot be less than 1.8 mm.

Characteristics of pipes for external sewage

External sewer plastic pipes are usually yellow or orange in color. They are used for laying outside and are operated under more severe conditions. This leads to the fact that they have their own list of wall thicknesses for each diameter. For example, for a 200 mm diameter, the wall thickness would be 3.9 mm. This applies to pipes for light conditions, they are laid to a depth of 4 meters.

With the aforementioned diameter, the wall thickness will be 4.9 mm, if the pipes are operated under medium hardness conditions, and they will be buried by 6 meters. The wall thickness will be increased to 5.9 mm if the depth reaches 8 meters and the hardness conditions are severe.

The cost of sewer plastic pipes

A plastic sewer pipe 50 mm is a product where the diameter is indicated. You will have to pay 94 rubles for the product. In this case, the wall thickness will be 3.2 mm. In this case, we are talking about the stiffness class SN 4. A sewer plastic pipe 110 mm will cost the consumer 200 rubles. The wall thickness remains the same. With an increase in diameter to 160 mm, the price rises to 579 rubles.

Connection Features

Plastic sewer pipes must be securely sealed and joined to each other. Ultimately, the master must receive a holistic design. For this, universal fittings are used, among them:

knee;
tee fittings;
siphons.

A tee Y-fitting is used for connection at an angle of 45 °C. If it is necessary to form a right angle, a T-Y fitting should be used. If you want to connect a pipe of a larger diameter with a thinner pipe, then a sleeve is put on the socket, which allows you to reduce the diameter.

To eliminate blockages, experts recommend less frequent use of any kind of connection. Before connecting sewer plastic pipes, the structures should be cleaned, this is necessary when the pipe is soldered with a socket. If irregularities form on the inner wall, they will collect solid particles from the drains. When connecting with force, you can use a lubricant like soap, glycerin or grease.

Installation

The dimensions of the plastic sewer pipes must be selected by you before you start laying the system. Next, you need to follow the technology. At the first stage, the elements are adjusted, while the master needs to check the compliance of the slopes and angles. You can markup so as not to get confused in a large number of nodes.

In the next step, the elements are connected to each other. It is important to check that the product fits into the socket by a third of the seat. In this case, no special efforts should be made. For tightness, the joints are glued with a special compound. After applying it, you can put on the fitting. To create a branched system, tees or other distribution elements can be used. After completion of work, it is important to check the tightness of the system within an hour. If the leak is not detected, then the installation work was carried out successfully and efficiently.

Features of the arrangement of the sewerage system using plastic pipes

Plastic sewer pipes, the prices of which were mentioned above, must be laid with a certain slope, which will ensure the unhindered removal of waste and sewage.

If the slope is too large, then growths will form on the inner walls, which over time will lead to the formation of blockages and traffic jams. If the slope is made smaller or not provided at all, then the drains will not leave the house on their own, the system in this case will be inoperative. Plastic sewer pipes, the prices of which should interest you if you plan to use them when arranging the system, are used in conjunction with a metal fan pipe. It is required for ventilation and is set to a height of four meters. Its diameter usually varies from 50 to 110 mm.

If we are talking about urban multi-storey buildings, where a sewer riser passes through all floors, its diameter must match the outlet pipe from the toilet. This value is 110 mm. The removal of the pipe is carried out on the roof, it is left open. It will communicate with the atmosphere and eliminate vacuum, which could lead to the appearance of unpleasant odors.

When assembling the riser, it is important to strengthen the neck of each pipe with a clamp. If a compensating pipe is installed, then its fastening is carried out using the same technology. O-rings should not be assumed to be sufficient for plastic pipes. Over time, they will certainly loosen, and the joints may lose their tightness.

Conclusion

Installation of plastic sewer pipes is quite often carried out under highways. In this case, the system should be located at a depth of one meter or more. If it is no longer possible to deepen the system, then it is necessary to carry out its pulling in a reinforced concrete box.

It is important not only to correctly lay the sewerage system from plastic pipes, but also to ensure operation in accordance with the rules. For cleaning sewer risers, steel wire is used, which is not suitable for plastic structures. This is due to the fact that the wire can scratch the inner walls of the products. Therefore, it is recommended to use a soft cable that is protected by a rubber tip.

For high-quality drainage and drainage of water, pipes for sewerage are used. They differ both in material and in diameter. It is these parameters that affect the quality and timing of the operation of the drain. The most common option is a pipe with a diameter of 110 mm. To what extent this is justified, what pros and cons it has, as well as the nuances of installation, we will consider in this article.

Cast iron materials have been used for decades. Their service life is determined on average up to 80 years. The positive factors of cast iron products include their durability and high degree of strength. But it is impossible not to note the shortcomings. Cast iron products are quite heavy, which makes it difficult to perform installation work. Also, the surface of cast iron has roughness, which to some extent prevents the passage of water flows and provides for the build-up of elements. As a result, there is a clogging of the sewer. And most importantly, this type of pipe has a high price.

Not so long ago, plastic pipes appeared on sale, which turned out to be a good replacement for cast iron. They, in turn, are divided into the following types:

PVC pipes have a number of characteristics, such as the ability to use them at low temperatures, a high degree of mechanical and chemical stress. But they are afraid of high temperatures. For example, the maximum temperature that a material can withstand is 400 0 C. They have different strength indicators, depending on which their scope is determined:
Light degree of strength, for arranging a sewer pipeline, which is mounted at a shallow depth without exerting any pressure on them.
With an average degree of strength, PVC pipes can be laid through small roads.
Heavy PVC pipes are used in industry and can be laid under highways.
Polypropylene materials. This type of material is not used for arranging external sewage. It is better to use them in conditions where placement in the ground is not required. Usually this is the arrangement of internal sewage. This is due to the fact that this material differs from PVC in lower rigidity, and most importantly, the possibility of damage to them by rodents. But it is resistant to high temperatures up to 800 0 С.
Polyethylene corrugation. This is one of the most common types of pipes for outdoor sewage. Their diametrical section varies from 200 mm to 800 mm. This is a fairly durable material, it can be laid to a depth of 15 m. It consists of two layers: an outer corrugated one, which is made of thick polyethylene, and a smooth inner one, which has a smaller thickness.

Advantages of plastic pipe

Plastic products have a number of undeniable advantages. These include:

Corrosion resistance. They are made from materials that do not react with destructive elements. The service life of plastic is less than that of cast iron, but still reaches 50 years.
During operation, plastic pipes do not create much noise, since the smooth inner surface ensures the unhindered passage of water.
The environmental friendliness of the material ensures safe operation in domestic conditions.
Low degree of thermal conductivity. This is a significant plus, since the hot water passing through the pipes does not cool down.
Plastic is highly resistant to temperature and pressure changes.
They are light in weight, which greatly simplifies the installation process. No welding is required to connect them. They are connected using special parts. Connections are ultimately reliable and tight.
Plastic products do not need maintenance in terms of corrosion protection. There is no need to paint them. Suitable for both open and closed use.

Wall thickness selection

One of the important parameters for the reliable functioning of sewer pipes is their thickness. Passing inside the sewer, water exerts internal pressure on the walls. Therefore, the thickness must be such that the walls can withstand the pressure exerted on them. But it should be noted that during the drain sewer, the water flows by gravity, there is no great pressure on the walls, which means that a significant thickness is not required.

Basically, the wall thickness of external sewer pipes is determined by their diameter. Traditionally, the thickness of pipes with a diametrical section of 110 mm is 3 mm. If the diametrical section is 150 - 160 mm, then their thickness is about 3.9 mm. This thickness is functionally of great practical importance. For example, if a 3 mm meter of steel pipe with a diameter of 110 mm weighs 1 kg, then a 3.9 mm thick pipe with a diameter of 160 mm will already weigh about 2 kg.

As for plastic materials, the dependence of the parameters of thickness and diameter is preserved. The manufacturing process of PVC pipes is not complicated and, if necessary, you can change the thickness of the pipes during production.

Technical characteristics of the pipe 110 mm

The main components of the diametrical section are as follows:

Internal diametrical section. This parameter is fundamental. It is on it that all connecting elements are selected. For sewer plastic pipes 110 mm, the inner diameter is 103.6 mm.
The diameter of the conditional passage determines the nominal value of the internal diametrical section.
External diametrical section.
Pipe wall thickness.

One of the main parameters is the diametrical section. It is by these indicators that the scope of plastic products is determined. Pipes with a diameter of 110 mm are mainly used for arranging sewer drains.

The table below will help determine the choice of a pipe with a diameter of 110 mm and its technical characteristics.

How to install a 110 mm pipe

The laying of sewer pipes is determined by a certain technology. Compliance with it ensures the quality functioning of the sewer. When installing, you should observe some features and take into account certain nuances.

The slope of the sewer system

One of the most important parameters is the slope of the sewer pipes. Drainage water should go easily and not get any obstruction. The natural flow process requires the arrangement of some slope. According to the standard, the slope indicators are 1 cm per 1 m of pipe. To arrange the slope, markings are first made, and then fasteners are installed in accordance with the markings. The markup is done using a level, best of all laser. To begin with, mark a horizontal line that runs flush with the drain hole on the riser. Then it rises by a number that corresponds to the distance from the riser to the original drain point.

Connection process

An important and directly main factor in the quality arrangement of the sewer system is pipe connections. The process itself is simple, but there are some nuances that ensure the reliability and tightness of the joints. Negligence in this case can lead to the appearance of such negative factors:

leaks;
bad smell.

In order to prevent the defects listed above, when connecting 110 mm pipes, sealing gaskets are used, which are available in several types: single-feather, double-feather and double-feather with a plastic ring. The installation of these gaskets is carried out with some differences, which should also be taken into account. For example, single-feather gaskets are usually installed, and when installing others, it is necessary to use a special lubricant. So, in order to properly connect 110 mm sewer pipes:

Insert the gasket into the socket. We make sure that distortions do not form. Also, you should first inspect the gasket so that it does not have any defects.
As a lubricant, you can use improvised means: detergent, soap, petroleum jelly. The main thing is that these funds do not negatively affect the rubber gaskets and do not change their structure. It is difficult to predict this, so experts recommend using a specialized lubricant, which is made on the basis of silicone. Silicone itself cannot be used, as it is aggressive to rubber.
After the seals are installed, it remains to connect the products together. In the course of work, we make sure that the joints are tight.

Connection sequence

Let us clarify that pipes of 100 mm are connected not only to each other. In the arrangement of the sewer system, various fittings are used, which allow, if necessary, to perform a turn or other bend. Here is an example of the sequence of connections of the sewer system:

The drain system is started with a turn fitting, to which a flexible corrugated hose is connected from the inside, and a 110 mm pipe from the outside. Many do not use this element. Then in this case it is impossible to guarantee the tightness of this connection.
Do not forget, when attaching the product to the fitting, a rubber gasket must be installed. We also monitor the depth of landing.
If it is necessary to arrange a branching of the sewer system, tee fittings are used. To change the diametrical section in the sewerage system, adapter fittings should be purchased.
The last rule in the connection. All joints should be placed in the direction of water flow.

Rules for working with plastic pipes

Despite the seeming simplicity of assembling a sewer system made of plastic materials, there are some nuances that should be taken into account when working. First of all, we prepare the tools:

Hacksaw or pipe cutter.
Bulgarian.
Sandpaper for cleaning.
Lubricant and glue for plastic pipes.

Rules for processing plastic pipes in case they are cut:

Having cut the pipe into two parts, it is necessary to ensure the presence of a chamfer on the cut for ease of connection.
Slices are lightly treated with a grinder and cleaned with sandpaper.
After that, the elements are cleaned of dust, and the ends are treated with a degreaser.
After the rubber gaskets are installed, a thin layer of glue is applied to the end and firmly inserted into the fitting. For reliability, when connecting, the elements can be rotated a quarter of a turn.

When equipping a sewer drain, it is necessary to carry out the work so as not to return to this procedure for at least ten long years. And this is quite realistic if you follow all the tips and rules given above. Proper pipe laying is the key to the long-term functioning of the sewer system.

Plastic pipes have been considered the natural choice for many years when replacing an old or installing a new sewer system. Modern production is constantly improving the technology of manufacturing plastic construction products.

As a result, a wide range of quality materials of various shapes and diameters appeared, which caused progress in the construction of reliable, durable sewer pipelines.

External sewer pipe - diameters.

Pipes for external drain are orange. Depending on the amount of wastewater, diameters are produced 110, 125, 160, 200, 250, 300, 400 and 500mm. The size of the wall starts from 3 mm, the length varies from 1.2 to 3 m. For the arrangement of urban sewer systems, a diameter of 200 mm is used.

Dimensions of internal PVC pipes.

For the arrangement of internal sewerage, gray pipes are used. Standard diameter sizes are 32, 40, 50, 75, 110 and 160mm. The wall thickness is not designed for high loads, varies from 1 to 3.2 mm. Length can be 0.3, 0.5, 1, 1.5, 2 and 3 meters.

Appointment of PVC pipes and main characteristics.

The scope of this material depends on its physical properties. It does not hurt to know that polyvinyl chloride is one of the representatives of the group of thermoplastics, which, after heat treatment and even under mechanical stress, retain their shape and integrity.

Ethylene, stabilized chlorine and additives to improve properties are also used in the pipe production process. The main purpose of PVC pipes is their use in the sewerage system. Depending on their thickness, the scope of use and, accordingly, the type are determined.

It could be:

internal sewerage:
outdoor;
pressure system;
gravity drain.

This classification refers to those models that have undergone appropriate processing. The best technical characteristics are not plasticized polyvinyl chloride PVC-U. Operational properties directly depend on the technical characteristics.

As for PVC pipes, they are characterized by such indicators:

a high level of mechanical strength, moreover, a three-layer manufacturing technology and external corrugation allows you to install it deep;
resistance to the negative influence of an aggressive environment;
perfectly smooth wall from the inside, which prevents the retention of solid elements;
a large value of internal pressure, a minimum of 6 bar, and a maximum of 16;
the highest drain temperature that is allowed is +65 degrees Celsius, and the minimum is -10 degrees. There are models that can withstand +90 degrees, but if this happens for a short time;
specific gravity 2 kg per linear meter (the indicator varies depending on the thickness and diameter);
the tensile strength is 50 MPa, and the service life is about 50 years.

Pipe sizes for indoor and outdoor systems.

The dimensions of PVC pipes are determined by several parameters: diameter, wall thickness and length. Each type of sewer has its own recommended standards.

Since PVC pipes are manufactured in accordance with GOST, they have strictly defined dimensional characteristics.

The table shows the standard dimensions of PVC pipes for internal and external sewage:

Dn is the outer diameter of the pipe,
d - inner diameter,
Dy - average lumen,
b - wall thickness.

According to building codes, each element of the plumbing system has its own requirements for the diameter of the pipes (according to the internal diameter):

25 mm - washing machines, dishwashers,
30-47 mm - bathroom sink, bidet,
38-50 mm - kitchen cubicle, bathtub or shower,
50 mm - wiring of the sewer system inside the building,
70-86 mm - various outlets from the central riser,
100-118 mm - toilet bowl, central riser,
150-190 mm - section from the central riser to the city sewer system,
200 mm - drainage from baths (saunas),
240-300 mm - drainage from pools,
300-1100 mm - urban sewer lines.

Video:

Advantages of PVC material.

It is important to understand that PVC, plumbing, for wiring and sewer, have a lot of significant competitive advantages, the main of which are:

An impressive service life, the duration of which is usually at least half a century;
No need to maintain an object assembled from PVC;
The minimum weight greatly facilitates not only storage and transportation, but also installation work;
Low, in comparison with analogues made from other raw materials, cost;
The impossibility of clogging the structure, due to the smooth internal structure of the part;
Simplicity and the ability to quickly perform installation work.

The technical features of the goods in question are such that their assembly does not require the use of complex tools and expensive labor: all the actions that the situation requires (in some cases, even digging trenches for external sewage) can be done by hand, connecting pipes with a socket is not is a complex process and does not require special skills.

The following two tabs change content below.

The sewerage system has long been no longer a luxury in a private house. The presence of sewerage allows you to install sinks, sinks, a bathtub, a shower and even a toilet bowl in the house, simplifying the life of a modern person, making it comfortable. Previously, cast iron pipes were used to create drain systems. The advantage of this material is its high strength, so it is able to withstand various mechanical loads. This material has a long service life, but it also has disadvantages - high cost and heavy weight. Despite all the advantages of cast iron, today it has been replaced by such a popular material as plastic. Plastic sewage has more advantages than cast iron, so the use of this material is widespread.

Varieties of plastic sewer pipes

Plastic sewer pipes are classified according to a number of the following parameters:

Scope of application;
Diameter. Particular attention when choosing a pipeline is given to the internal diameter;
Length. Depending on the material of the pipeline, products are produced both in a certain length (standardized) and in various footage;
Wall thickness, which directly affects such an indicator as strength and service life;
The material used to make the pipeline.

Plastic sewer pipes are divided into four main types:

Polyethylene;
Polypropylene;
PVC;
Polybutylene.

All these types of plastic pipes have found their use, both in multi-apartment buildings, and in private houses and even cottages. Before the construction of the sewage system, it is necessary to select pipes for its construction, since factors such as long service life and reliability influence the correct choice. To make the right choice of plastic pipes for the construction of sewers, you need to know the characteristics of each type of material.

Polyethylene pipelines

High-pressure polyethylene pipes are popular in the installation of waste systems, as they have the following advantages:

long service life;
reliability;
good technical parameters.

In what cases is it appropriate to use polyethylene pipelines for the construction of sewers, we will consider in detail.

If the soil contains chemicals. Polyethylene is not exposed to the negative effects of chemicals, so it is also used to remove aggressive environments in the form of acids and alkalis in production.
When living in the northern regions. Polyethylene is not adversely affected by low temperatures, so it is advisable to use it for the construction of waste systems in regions with a harsh climate. If there is a possibility of freezing of the pipeline, then it is recommended not to neglect its insulation in order to avoid clogging of the pipe cavity.
When arranging sewerage from the kitchen. It is not uncommon for such cases when several drain pipelines are being built in a private house. One sewer is used for the bathroom, and the second for the kitchen. For the construction of a kitchen drain, it is recommended to use pipes made of polyethylene, as they have a smooth inner surface, so there is no deposition of fat accumulations on the walls.

The disadvantage of polyethylene is the tendency to soften at temperatures above 80 degrees. To eliminate negative consequences, it is recommended not to pour boiling water into the sewer or dilute it with cold water.

If you give preference to cross-linked polyethylene, then such a material can withstand temperatures up to 200 degrees. At the same time, it costs 2 times more than ordinary polyethylene.

Pipes made of this material are used for arranging water pipes, but in rare cases they are mounted for sewage. The main advantage of polypropylene is the low weight of the products, so even one person can handle the installation of the pipeline.

The advantages of polypropylene pipes are the following factors:

High degree of wear resistance.
The strength of the material, so it is not afraid of minor mechanical stress.
Resistance to high temperatures.

It can be used where there is a possibility of mechanical damage, and boiling water often descends through the pipeline. Among the shortcomings, it should be noted that the material is afraid of the cold, therefore, even at -15, a crack may occur. If the product is not sufficiently insulated, then the sewer will soon have to be changed. This material is not suitable for the northern regions, as well as for the removal of aggressive substances. When exposed to a negative environment (acid or alkali), the material decomposes.

PVC pipelines for sewerage

For the arrangement of waste systems, pipelines made of such material as polyvinyl chloride or PVC are often used. PVC pipes have many advantages due to which they have found their application in this area. Polyvinyl chloride sewer pipes are relatively inexpensive, and as efficient as possible.

The rationality of their use is due to the following factors:

Resistance to aggressive factors. If you often have to drain acids, alkalis and other types of chemical reagents into the sewer, then a PVC pipeline does this task best.
Ability to withstand medium mechanical loads. Plastic, although not designed for mechanical loads, but thanks to the ribbed base, this material is not subject to deformation.
Ability to withstand temperature fluctuations. The destruction of the material is observed only with prolonged exposure to a high temperature of +120 degrees.
There is no need to ground the pipeline, as PVC is non-conductive.

Corrugated two-component PVC pipelines are the most popular materials for the construction of sewer pipelines in the ground.

Polybutylene pipelines for sewerage

Polybutylene is one of the least used materials for the construction of sewage. This material is often used for water supply or construction of heating systems. However, due to the fact that the material promotes the development of bacteria, it is used for the construction of plumbing in rare cases.

The main feature of polybutylene is elasticity. After unwinding the pipeline from the bay, it very quickly assumes a straightened position. Due to its elasticity, this type of material is used for laying pipelines in the panels of frame houses, including for the construction of sewers. Polybutylene is highly flammable and also devastating at chlorine concentrations greater than 2 mg/L.

Sewer pipes made of plastic and their dimensions

What are sewer pipes made of plastic, and how they differ from each other, is now known. An important criterion that characterizes sewer pipelines is the standard size. The pipe assortment of plastic products is quite diverse, therefore, when choosing a pipeline, it is important to pay attention to the dimensions of the pipelines.

The diameters of PVC sewer pipes are presented in the table below.

Features of the selection of the optimal diameter

When laying PVC plumbing pipes for sewerage, it is important to consider the dimensions. To select the correct dimensions of pipelines for the sewer system, it is recommended to rely on the following features:

For external sewage, plastic pipelines larger than 110 mm are used. The construction of an external plastic sewer with a diameter of less than 110 mm for a private house can lead to the need for frequent revisions to clean the system. When constructing a sewage system, it is important to take into account criteria such as the number of floors in a private house, as well as the number of inhabitants.

What connects plastic pipes

When constructing a sewage system, in addition to pipelines, connectors will also be needed. Products such as fittings act as connecting elements. They come in different types and sizes, so let's look at some of them.

There are many other connector options that are used depending on their purpose.

Rigidity of plastic pipes: what does color mean

The rigidity of plastic pipes is closely related to strength. To distinguish products, manufacturers decided to paint them in different colors. The light brown color of the pipeline means that it is intended for arranging the sewage system indoors. Orange-brown products are intended exclusively for the construction of an external network.

Products differ from each other in the class of rigidity:

SN2 - are used for the construction of waste systems where there is no traffic.
SN4 - are used where there is moderate traffic.
SN8 - are used for the construction of sewers where there is an intensive movement of heavy vehicles.

When choosing plastic products, attention is paid to the class of rigidity, which will extend the life of the system.

Features of the installation work

If the installation of the sewer pipeline is carried out independently, which is quite realistic, then it is important to take into account some features of the work. These features include:

When connecting sewer pipelines, it is recommended to additionally coat the joints with waterproof sealants. This will eliminate not only the occurrence of smudges, but also an unpleasant smell in the room.

Plastic sewer products are characterized by efficiency, unlike their cast-iron counterparts. If there is a need to repair the sewer or construct a new drain, then for the construction it is recommended to give preference to a new type of material - plastic.