Plastic sewer pipe 100 mm dimensions. Dimensions and types of PVC sewer pipes and adapters for connecting them. Internal and external section of polypropylene pipe

During installation sewer systems Two types of pipes are used - cast iron and plastic. The size of these products is regulated Technical Conditions(THAT). Standard size, namely the diameter, ranges from 50 to 110 mm.

There are products with larger or smaller diameters. From this article you will learn the main parameters that products made of PVC and cast iron have.

They are produced in accordance with TU 2248-022-23208482-02, which allows you to choose an option for any system.

What types of sewer pipes are there?

Today, sewer systems are made from two types of pipes: plastic and metal. Plastic can be of three varieties, from:

Advantages

Resistant to chemicals such as acids, alkalis, solvents.
Durability - they can be buried in the ground to a depth of 16 meters.
Smooth inner surface, which prevents the formation of plaque inside.
Light weight - the weight of one meter with a diameter of 110 mm will be only 1.5 kilograms.

Metal sewer pipes cannot boast of a large selection of materials; they are produced only from cast iron.

Advantages of cast iron pipes

Durability - the service life of cast iron products exceeds 60 years.
Durability - they allow you to install a riser of almost any length.
Easy installation - the products have a socket, which simplifies installation.

Of course they are very heavy, but this is compensated by their colossal strength.

After familiarizing yourself with the properties of the two types of pipes, you can move on to their sizes.

Plastic pipe sizes

As mentioned above, plastic pipes come in three varieties: PVC, PP, PET. They differ from each other in characteristics, both basic and technical.

And only the sizes remain standard, regardless of the type. Thus, in one system it is possible to use several types from different materials.

PVC pipe size and application

PVC pipes are produced in accordance with GOST R 51613 - 2000 and VSN 48 - 96. Pressure pipelines are regulated by GOST, and non-pressure pipelines are regulated by construction standards (VSN).

In accordance with building regulations, free-flow pipes have three diameter sizes - 50 mm, 90 mm, 110 mm. The wall thickness is 3.2 mm, length 0.5 - 8 m.

Pressure ones differ significantly from their non-pressure counterparts. The number of standard sizes is 13 pieces, and the diameter varies from 63 mm to 315 mm.

However, despite such a large assortment of plastic pipes, not all are in demand. The most commonly used options are:

Apart from the most popular options 100 and 110 mm, the 75 mm pipe is very popular. They are used as outlets from bathtubs and showers.
Pipes with a diameter of 100 and 110 mm are used for the construction of risers and installation of external pipelines.
200 and 300 mm pipes are used for the installation of industrial sewerage.

PET sewer pipes

Polyethylene pipes are produced in accordance with GOST 22689.2-89 regulations, and have only 4 varieties. The diameter is 40, 50, 90 or 110 millimeters. If the pipe is made of polyethylene low pressure, then the thickness of its walls will be only 3 mm.

PET pipes high pressure are produced in smaller diameters, and the wall thickness is: 3 mm for pipes with a diameter of 40 - 50 mm, and 5 mm for a diameter of 90 - 110 mm. The length can vary from 2 to 9 meters, and this directly depends on the diameter of the product. The larger the diameter, the longer the length of the segment.

Polypropylene pipe

Internal pipes made of propylene are produced in accordance with TU 4926-002-88742502-00. In accordance with these conditions, their diameter can be 50, 100 and 150 mm, and the wall thickness from 3 to 5 mm depending on the diameter. Polypropylene products are used both for risers and for outlet lines from plumbing fixtures.

There are also larger polypropylene analogs that are used for laying external drains. For example, products famous brands Pragma and Korsis can have a diameter from 110 mm to 1.2 meters.

Dimensions of cast iron sewer pipes

Functionality is divided into two types:

SMU – there is no detachable connection, i.e. both ends are smooth;
SME - equipped with a bell at one end, smooth at the other.

The size is characterized by the internal diameter, for example: the marking DN 100 means that the diameter inside is 100 mm, and outside it will be 110 mm. Standard markings for cast iron pipes are from DN 50 to DN 400. Pipes without sockets, with smooth ends, have increased strength and are produced in lengths of 3 m, while conventional split pipes can be from 15 cm or more.

The wall thickness of cast iron pipes is practically no different from plastic pipes and is 4 - 5 mm. But despite same sizes- length, diameter and wall thickness, the mass of metal and plastic products differs significantly. For example, 1 meter of cast iron pipe with a diameter of 100 mm weighs 14 kg, and a plastic analogue of the same dimensions will have a mass of no more than 1.5 kg.

In the table below, you can see the recommended diameters of plastic pipes for internal or external sewerage. All data provided are advisory in nature and may change up or down, depending on technical characteristics plumbing fixtures or sewer system.

Sewer plastic pipes: diameters, prices

Every owner wants everything in his household to work, nothing to break, and to be easy to maintain and install. And sewerage is no exception. It needs to require as little attention as possible - it is very inconvenient if it gets clogged, but it is no less unpleasant to clean it. If you want to have a trouble-free drainage system, pay attention to plastic sewer pipes. They are gradually replacing cast iron ones, and all because they cost less, are easier to install, and have a large assortment - different diameters and length, almost no deposits form on their smooth walls, and their service life is about 50 years. This whole bouquet of properties determines their popularity.

Plastic sewer pipes are made from various polymers and their compositions

Types of plastic sewer pipes

Products made from different types polymers:

polyethylene (PE):
- high pressure (HPV) - for internal sewerage distribution;
- low pressure (LDPE) - can be laid outside, in trenches (they have greater strength);
polyvinyl chloride (PVC);
polypropylene (PP)

And a number of other thermoplastics and their combinations, but they are rare - people prefer to use already known materials.

The material of plastic sewer pipes is selected depending on the application. For example, polypropylene is more suitable for installing sewerage inside a house or apartment. It has a higher operating temperature range - it normally tolerates environments up to 70°C, and for short periods - up to 95°C. If there are different household appliances, which discharges waste hot water into the sewer, this will not be superfluous. PVC pipes having more than low prices, are more appropriate when laying external sewerage- here the wastewater is usually already mixed, so the temperatures are lower and PVC can tolerate them without harm (working up to +40°C, short-term increase to 60°C).

An example of an in-house sewerage system made from plastic pipes

Sewer pipes can also be smooth or corrugated. Moreover, not only siphon bends can be corrugated. There are profiled pipes for sewerage with an internal smooth wall and an external ribbed one. They have greater strength - they can better withstand compressive loads (they have increased ring rigidity) and can be buried to great depths. Available in diameters from 110 mm to 1200 mm.

Dimensions and diameters

Sewage plastic pipes, unlike water and gas pipes, are produced in the form of lengths of 50 cm, 100 cm, 200 cm, etc. - up to 600 cm. Maximum length- 12 meters, but some manufacturers can make longer sections upon request. When laying long routes, this is convenient - there are fewer connections, fewer possible places for problems to arise (leaks or blockages).

Another important characteristics of plastic pipes are diameter and wall thickness. In the markings they usually go side by side: the numbers are 160 * 4.2. What does it stand for: outside diameter pipes 160 mm, wall thickness 4.2 mm. It’s worth remembering here that manufacturers indicate the outer diameter of plastic pipes, and many calculations and planning require knowing the inner one. It is easy to calculate: from the outer wall we subtract twice the wall thickness: 160 mm - 4.2 mm * 2 = 151.6 mm. Calculations and tables usually contain a rounded result - in in this case- 150 mm.

Parameters of sewer plastic pipes

In general, the industry produces plastic pipes for sewerage with a diameter of 25 mm. The maximum cross-section depends on the type of pipe (smooth or corrugated) and the material from which it is made. For example, smooth PVC sewer pipes can have a diameter of up to 630 mm, and profiled two-layer pipes can have a diameter of up to 1200 mm. But these dimensions are of no use to homeowners or apartment dwellers. In private housing construction, diameters up to 100-110 mm are mainly used, rarely up to 160 mm. Sometimes, for a large cottage with big amount plumbing fixtures, you may need a pipe 200-250 mm in diameter.

How to choose a diameter for connecting plumbing fixtures

According to the rules, a calculation must be made; it is fully spelled out in SNiP 2.04.01085. This is a complex matter, a lot of data is required, so few people really think as it should. Over the years, accumulated practice has made it possible to derive the average diameters of polyethylene sewer pipes for each of the plumbing fixtures. You can safely use these developments - all calculations usually come down to these dimensions.

Plastic pipes for sewerage: sizes and prices

Which plastic sewer pipes to use for which networks, what to pay attention to. How to choose sizes, how to decipher the markings.

Diameter and dimensions of PVC sewer pipes

Have you ever wondered what causes the high demand for PVC sewer pipes?

The thing is that they are easy to install, easy to use and, most importantly, inexpensive.

The modern market offers a wide range of materials with which sewerage can be installed.

And in order to do right choice, you need to have at least minimal knowledge about their characteristics.

Purpose of PVC pipes and main characteristics

Scope of application of this material depends on its physical properties. It doesn’t 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. The pipe production process also uses ethylene, stabilized chlorine and additives to improve properties.

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:

Plastic pipes: orange - for external sewerage, gray - for internal

This classification applies to those models that have undergone appropriate processing. Non-plasticized polyvinyl chloride PVC-U has the best technical characteristics.

Performance properties directly depend on technical characteristics. As for PVC pipes, they are characterized by the following indicators:

high level of mechanical strength, moreover, three-layer manufacturing technology and external corrugation allows it to be installed deeply;
resistance to negative influence aggressive environment;
a perfectly smooth wall from the inside, which prevents the retention of solid elements;
great importance internal pressure, minimum 6 bar, maximum 16;
the most heat drainage, which 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 figure varies depending on the thickness and diameter);
the tensile strength is 50 MPa, and the service life is about 50 years.

Features of the diameter and size of sewer pipes

Diameter of PVC sewer pipes

D is the outer diameter of the pipe; Dy is the internal diameter of the pipe; Dр - outer diameter of the socket; Lр - length of the socket; L is the length of the pipe without socket; L1 = L+Lp

Diameter of PVC sewer pipes is the main parameter when choosing them, and this does not depend on whether the sewage system is installed internally or externally. It is worth noting that different pipe sizes mean that they are designed for different tasks. Do not forget that the installation of the sewer system will be easy and correct if you choose the right size.

PVC sewer pipe diameter table

According to the table, a pipe with a diameter of 40 mm at a slope of 1.3 cm should be used to drain the bathtub, then:

shower - diameter 40 mm, slope 1.48 cm;
toilet - 100 mm/1.2 cm;
sink - 40 mm/1.12 cm;
bidet - 30-40 mm/1.2 cm;
sink - 30-40 mm/1.36 cm;
combined drain - 50 mm/1.8 cm;
central riser - 100 mm;
bends from the riser - 65-75 mm.

Pipeline parameters include:

external diameter;
inner diameter;
conditional passage - means internal section;
nominal section.

PVC sewer pipe size chart

The table will help you understand what sizes of PVC sewer pipes there are. You can view it below:

Dimensions of PVC sewer pipes - Table 1

The dimensions of pipes for external sewerage are not regulated in any way; the only recommendation is that its diameter should not be smaller than the size of the circle external highway. For example, in private houses pipes with a diameter of 110-250 mm can be used, and in intensive load systems even larger (about 400 mm).

Dimensions of PVC sewer pipes - Table 2

The thickness of the material is also of considerable importance in operation; it depends on the stiffness class to which the pipe belongs. If we talk about wall thickness, then for sewerage installation internal type There are no specific standards, but in gravity systems it is not advisable to use pipes thinner than 1.8 mm.

How to choose the optimal diameter of sewer pipes?

Of course, the availability of PVC pipes of different sizes can be considered an advantage, but for those who encounter them for the first time, certain difficulties may arise when choosing. To avoid misunderstandings, it is important to know that:

diameter horizontal pipe cannot be smaller than the riser through which they pass wastewater. This may cause blockages;
horizontal connections are mounted only with the help of oblique tees and angles, this prevents unnecessary clogging;
It is mandatory to install an inspection at each turn, which is a special hole for cleaning. IN multi-storey buildings they are installed every 3 floors. Even if the area is long (more than 12 m) and deaf, an inspection will still not hurt;
the optimal slope of the sewer pipe is 1.2 cm;
cutting hollow objects that are not too wide is quite simple using a hacksaw or grinder.

How to choose the diameter? If you will be using a pipe to drain a dishwasher or washing machine, then its circumference should be 25 mm, and if it is a siphon or shower stall, then 32 mm. On average, sewer pipes installed inside an apartment should be 40-50 mm. Hollow objects are used for the street round section with a diameter of 160-200 mm.

Methods for connecting PVC pipes depending on their diameter

If the pipe circumference does not exceed 63 mm, then for their connection it is allowed following technologies connections:

socket welding - the principle is to place a smaller object into one that is larger;
Socket welding - used additional detail in the form of a coupling.

This is what the coupling looks like

Some models have threaded connections and require flare fittings.

In the case of pipes larger than 63 mm in diameter, the butt welding method is used. No couplings are needed here, however, the reliability of the connection is in no way inferior to similar methods.

Diameter of PVC sewer pipes: size table

The diameter of PVC sewer pipes is the main parameter when choosing them, and this does not depend on whether the sewage system is installed internally or externally.

Dimensions of plastic sewer pipes

Nowadays, plastic pipes have replaced the former cast iron and metal sewer pipes. They are gradually replacing old materials for sewerage installation from use, as they have better technical characteristics.

The advantages of plastic sewer pipes include:

simplicity and speed of installation: they are easy to cut and connect;
light weight: easy to transport and move, installation can be easily handled by one person;
impossibility of damage from corrosion and the absence of roughness on the inside of the pipes, on which decomposition products can gradually build up;
durability: the manufacturer guarantees a fifty-year service life for plastic sewer pipes, and in reality they will last longer.
cheap: compared to cast iron and metal, plastic pipes cost mere pennies.

The disadvantages of plastic sewer pipes include:

increased noise compared to cast iron: this is felt in panel apartment buildings with high sound permeability;
sensitivity to high temperatures: when the temperature inside the pipe is above ninety degrees, the pipe gradually softens and deforms. But in the sewer system, as a rule, such high temperatures are not created for a long time.

Standards and range

The parameters and dimensions of plastic sewer pipes depend on their area of application - whether it is an internal pipe or an external one. The outer ones have greater wall thickness, and, consequently, strength. Plastic pipes differ in the material from which they are made:

Pipes made of polypropylene (PP), the most common option, are produced in accordance with GOST 26996-86, which determines the composition of PP and copolymers. GOST does not establish a specific standard for them “plastic sewer pipes sizes”. But in a market economy, the standard sizes of PP pipes have developed independently: the following diameters of sewer plastic pipes are on sale: 32, 40, 50 and 110 mm; length options: 150, 250, 500, 750, 1000, 2000 and 3000 mm.
Polyethylene pipes high density(PVP) are produced in accordance with GOST 22689.2-89. Since they are produced wound into coils and cut into pieces of any required length, GOST sets only their diameters: 40.50, 90 and 110 mm. PVP pipes are divided into pressure and non-pressure. For pressure pipes, GOST 18599-83 prescribes the diameter of sewer plastic pipes from 10 to 1200 mm.
Polyvinyl chloride (PVC) pipes. The dimensions of this type of plastic sewer pipe are established by GOST 51613-2000. According to his instructions, PVC pipes should be from 10 to 315 mm in diameter, with a length of 4 to 12 m.

Dimensions of plastic sewer pipes: diameters, lengths, manufacturers

Dimensions of plastic sewer pipes: diameters, lengths. Standards and assortment: polypropylene (PP) pipes, high-density polyethylene (HDPE) pipes, polyvinyl chloride (PVC) pipes

Sewer plastic pipes: dimensions, characteristics, installation features

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

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

Why use plastic

If we're talking about about high-quality plastic pipes for laying sewers, they have ideal smooth surface Therefore, during operation, clogging occurs extremely rarely. 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 that are obtained during use latest technologies. This guarantees durability and reliability. If you want to choose especially durable products, then you should prefer metal-polymer sewer pipes.

Plastic pipes are quite easy to install; their installation requires less labor, this applies not only to the inside of the house. Such products have excellent throughput and are easy to bend at a certain angle. You can lay the pipes yourself. They have many advantages, 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 environments;
light weight.

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

Size information

The products described may have the most different sizes. If we are talking about an impressive diameter, then it is designed for increased load, so 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 will be suitable for the operation of industrial facilities. In individual construction, small-diameter products are required. A 150 mm riser will not be fully used, even if there are several bathrooms in the house. Square pipes can be used to solve problems of irrigation of household plots. To organize drains from individual appliances such as washbasins, showers and baths, you can use 75 mm pipes.

To ensure the toilet works, it is necessary to use a 100 or 110 mm pipe. When choosing sizes, 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 weigh 1 kg. Sewage plastic pipes also have a certain length. According to state standards, manufacturers produce separate sections from 1 to 6 m, the step will be 1 m.

Specifications

A plastic sewer pipe, the characteristics of which you should know before purchasing this product, has high mechanical strength. This is due to 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 especially applies to PVC-U materials, because they are used for transporting 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 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. Specific gravity may vary depending on the wall thickness and diameter, but on average it is 2 kg per linear meter. At rupture, the maximum tensile strength is 50 MPa.

Characteristics of plastic sewer pipes for indoor installation

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

A gray tint indicates that there is a pipe in front of you. internal sewerage. It has smooth walls and is connected by a socket. The most popular sizes are: 32, 40, 50 and 110 mm. The length can vary from 315 to 3000 mm. Taking into account the rigidity 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 sewerage

External plastic sewer pipes are usually yellow or orange. They are used for outdoor installation and are used under more severe conditions. This determines that they have their own list of wall thicknesses for each diameter. For example, for a 200 mm diameter the wall thickness will be 3.9 mm. This applies to pipes for light conditions; they are laid to a depth of up to 4 meters.

With the above diameter, the wall thickness will be 4.9 mm if the pipes are operated under average conditions of rigidity and are buried 6 meters. The wall thickness will be increased to 5.9 mm if the burial depth reaches 8 meters and the rigidity conditions are severe.

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 hardness class SN 4. A plastic sewer 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 increases to 579 rubles.

Connection Features

Plastic sewer pipes must be securely sealed and connected to each other. Ultimately, the master must obtain a complete design. For this, universal fittings are used, including:

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 need 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 avoid blockages, experts recommend using any connections less frequently. Before connecting sewer plastic pipes, the structures should be cleaned; this is necessary when the pipe will be soldered to the socket. If uneven surfaces form on the inner wall, they will collect solids from the drain. When connecting with force, you can use a lubricant such as soap, glycerin or grease.

Carrying out installation

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

At the next stage, the elements are connected to each other. It is important to check that the product fits into the socket one third of the seat. However, you should not attach special effort. The joints are glued together for tightness. special composition. After applying it, you can put on the fitting. To create a branched system, you can use tees or other distribution elements. After completing the work, it is important to check the tightness of the system within an hour. If no leak is found, then installation work were carried out successfully and efficiently.

Features of arranging a sewerage system using plastic pipes

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

If the slope is too great, then build-up 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 wastewater will not leave the house on its own, and 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 metal fan pipe. It is required for ventilation and is installed at a height of four meters. Its diameter usually varies from 50 to 110 mm.

If we are talking about urban multi-storey buildings, where all floors are sewer riser, its diameter must match the outlet pipe from the toilet. This value is 110 mm. In this case, the pipe is routed to 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, its fastening is carried out using the same technology. You should not assume that O-rings will suffice for plastic pipes. Over time, they will certainly become loose, 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 must be pulled through a reinforced concrete box.

It is important not only to correctly lay the sewage system made of plastic pipes, but also to ensure operation in accordance with the rules. To clean 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.

Sewer plastic pipes: dimensions, characteristics, installation features

Plastic sewer pipes are made from complex polymer compounds, which are obtained through the use of the latest technologies. This guarantees durability and reliability. If you want to choose especially durable products, then you should prefer metal-polymer sewer pipes.

For high-quality drainage and drainage of water, sewerage pipes are used. They differ both in material and in diametrical cross-section. It is these parameters that affect the quality and timing of the drain. The most common option is a pipe with a diameter of 110 mm. How justified this is, 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 estimated at an average of 80 years. The positive factors of cast iron products include their durability and high degree of strength. But one cannot fail to note the shortcomings. Cast iron products are quite heavy, which makes installation work difficult. Also, the surface of cast iron has roughness, which to some extent prevents the passage of water flows and allows elements to build up. As a result, the sewer becomes clogged. And most importantly, this type of pipes 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 influences. But they are afraid of high temperatures. For example, the maximum temperature that the material can withstand is 400 0 C. They have different strength indicators, depending on which their scope of application is determined:
Light level of strength, for arranging sewer pipelines that are installed at shallow depths without exerting any pressure on them.
With medium strength, PVC pipes can be laid across small roads.
Heavy PVC pipes are used in industry and can be laid under highways.
Polypropylene materials. This type the material is not used for arranging external sewerage. It is better to use them in conditions where placement in the ground is not required. Usually this is the arrangement of internal sewerage. This is due to the fact that this material differs from PVC in less rigidity, and most importantly, the possibility of damage by rodents. But it is resistant to high temperatures up to 800 0 C.
Polyethylene corrugation. This is one of the most common types of pipes for external sewerage. Their diameter section varies from 200 mm to 800 mm. This is a fairly durable material, it can be laid to a depth of up to 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. 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 use 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 changes and pressure changes.
They are lightweight, which greatly simplifies the installation process. No welding is required to connect them. They are connected using special parts. The connections are ultimately reliable and sealed.
Plastic products do not require maintenance in terms of corrosion protection. There is no need to paint them. Suitable for both open and indoor use.

Selection of wall thickness

One of the important parameters for the reliable functioning of sewer pipes is their thickness. As water passes through the drain, it 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 when draining the sewer, the water flows by gravity, there is no great pressure on the walls, and therefore 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 diameter of 110 mm is 3 mm. If the diametrical cross-section is 150 - 160 mm, then their thickness is about 3.9 mm. Functionally, this thickness has a large practical significance. For example, if the meter is 3 mm steel pipe with a diameter of 110 mm weighs 1 kg, then a thickness of 3.9 mm with a diameter of 160 mm will already weigh about 2 kg.

Concerning plastic materials, then the dependence of the thickness and diameter parameters 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 110 mm pipe

The main components of the diametrical section are as follows:

Internal diametrical section. This parameter is fundamental. It is according to this that all connecting elements are selected. For sewer plastic pipes 110 mm, the internal diameter is 103.6 mm.
The nominal diameter determines the nominal value of the internal diametral section.
Outer diameter section.
Pipe wall thickness.

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

The table below will help you decide on 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 according to a certain technology. Compliance with it ensures high-quality functioning of the sewerage system. During installation, certain features should be observed and certain nuances taken into account.

Slope of the sewer system

One of the most important parameters is the slope of sewer pipes. Drain water should leave easily and not get any obstacles. The natural process of drainage requires the construction of some slope. According to the standard, the slope is 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 marking is done using a level, preferably a laser. First, mark a horizontal line that runs level 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 quality arrangement 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 matter can lead to the following negative factors:

leaks;
unpleasant 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, but when installing others, it is necessary to use a special lubricant. So, in order to correctly 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 available products: detergent, soap, Vaseline. The main thing is that these products do not negatively affect rubber gaskets and do not change their structure. It is difficult to predict this, so experts recommend using a specialized lubricant that is made on a silicone basis. Silicone itself cannot be used, as it is aggressive to rubber.
After the seals are installed, all that remains is to connect the products together. During the work, we make sure that the joints are tight.

Sequence of connections

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

The drain system begins with a turn signal fitting, to which, with inside a flexible corrugated hose is connected, and the outer pipe is 110 mm. Many people don't use this element. Then in this case the tightness of this connection cannot be guaranteed.
Don’t forget, when connecting the product to the fitting, a rubber gasket must be installed. We also monitor the planting depth.
If it is necessary to arrange a branching sewer system, tee fittings are used. To change the diametrical cross-section in the sewer system, adapter fittings should be purchased.
The last rule in the connection. All joints must be placed along the flow of water.

Rules for working with plastic pipes

Despite the apparent 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, prepare the tools:

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

Rules for processing plastic pipes in case of cutting them:

After cutting the pipe into two parts, it is necessary to ensure that there is a chamfer on the cut for ease of connection.
The sections are lightly processed with a grinder and cleaned with sandpaper.
After this, the elements are cleaned of dust, and the ends are treated with a degreaser.
After the rubber gaskets are installed, glue is applied to the end thin layer and insert it tightly into the fitting. For reliability when connecting, the elements can be turned a quarter turn.

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

Sewer pipes, like any equipment, require replacement over time. Nowadays old cast iron pipes are increasingly being replaced with modern products PVC (polyvinyl chloride), which has many advantages over metal.

Polyvinyl chloride is a modern material that has proven itself in the pipe and fittings market.

Typically, PVC pipes are used for laying sewers (both internal and external), in pressure systems and wells, drainage structures and gravity drainage.

PVC products differ:

anti-corrosion properties;
immunity to damage by microorganisms;
smoothness of the inner surface, which prevents sedimentation and sediment build-up;
dielectric properties (polyvinyl chloride does not conduct electricity);
environmental safety, absence of harmful emissions;
inertness (PVC pipes do not come into chemical contact with the transported medium);
resistance to temperature changes;
resistance to barometric loads;
long service life;
ease of installation;
light weight of products;
a large assortment of pipes for various purposes and shaped products;
attractive cost, which is significantly lower than the price of metal ones.

In most cases, PVC pipes running indoors do not require insulation. If such a need arises (for example, when installing underground communications or installing under open air), it is rational to additionally insulate and insulate the pipeline.

Types of PVC sewer pipes and adapters

Depending on which section of the highway the product will be used, there are:

Lightweight pipes SN-2 are used in areas with the least load: when laying domestic sewerage indoors, as well as in residential areas where there is no traffic load.
Denser SN-4 pipes are used for laying sewers under roads with moderate traffic.
Industrial pipes SN-8 are intended for use in neighborhood and city sewerage mains, in production, as well as in areas with intense traffic load.

PVC sewer pipes have been replaced metal products. Different sections of the sewer system require pipes of different sizes. Suitable choice can be done by knowing the throughput and characteristics of the sewer pipeline.

Peculiarities

Pipe structures made of polyvinyl chloride are often used to equip wastewater drains, displacing cast iron and steel ones. Plastic sewer pipes are made from regular and unplasticized PVC. The material contains vinyl chloride and additional additives. High strength properties make it possible to use unplasticized PVC for organizing pressure pipelines.

Sewage pipes are designed to drain wastewater from a water drain, for the installation of a drainage channel, installation of intra-house and street sewerage. Use of PVC products for sewerage installations are justified due to the technical characteristics of the material. The long service life of sewer pipelines will allow the system to operate for up to 50 years. The tensile strength reaches 50 MPa, so the street section of the sewer can withstand installation to the depth of soil freezing. The pipeline is capable of operating at pressures from 6 to 16 bar.

The use of polyvinyl chloride pipes for sewerage has the following advantages:

A variety of sizes and shapes of pipes and fittings will allow you to assemble sewer systems of any complexity.
Smooth inner walls prevent settling sewerage, preventing the formation of blockages in small diameters and preventing the pipe passage from becoming overgrown with deposits.
The low weight of the products and ease of cutting mean quick and easy installation and dismantling without additional tools.
Inert to chemicals and corrosive effects.
Affordable price of pipeline elements.

Operating temperature range from -10 to +65 degrees. At -18 degrees, polyvinyl chloride becomes brittle. The material is resistant to softening during short-term heating to +90 degrees.

Plastic sewer pipe elements are produced in accordance with GOST 51613-2000. The dimensions of PVC pipes are determined by such indicators as length, outer diameter, inner diameter of the socket, bore diameter, wall thickness. The outer diameter assumes the nominal size of the product. The throughput depends on the bore diameter.

The wall thickness determines the strength of the pipeline and what load the pipe structure can withstand.

They are classified according to strength class:

lightweight SN2 structures with a wall thickness of less than 2.3 mm can withstand loads of up to 630 Pa,
medium-heavy SN4 with walls from 2.5 to 12.3 mm depending on the diameter, cope with pressure from 600 to 800 Pa,
heavy SN8 pipes with wall thicknesses from 3.2 to 15.3 mm, varying in diameter, withstand pressures from 800 to 1000 Pa.

Dimensions of PVC sewer pipes: how to choose suitable option?
Sewer pipes are used to construct a wastewater disposal system. How to choose the diameter of PVC sewer pipes for different sections of the drain? Is the plastic exterior sizing chart suitable for selecting wall thickness based on pipeline load?

When installing sewer systems, two types of pipes are used - cast iron and plastic. The size of these products is regulated by the Technical Conditions (TU). The standard size, namely diameter, ranges from 50 to 110 mm.

There are products with larger or smaller diameters. From this article you will learn the main parameters that products made of PVC and cast iron have.

They are produced in accordance with TU 2248-022-23208482-02, which allows you to choose an option for any system.

What types of sewer pipes are there?

Today, sewer systems are made from two types of pipes: plastic and metal. Plastic can be of three varieties, from:

PVC - polyvinyl chloride,
PP - polypropylene,
PET - polyethylene.

Advantages

Resistant to chemicals such as acids, alkalis, solvents.
Durability - they can be buried in the ground to a depth of 16 meters.
Smooth inner surface, which prevents the formation of plaque inside.
Light weight - the weight of one meter with a diameter of 110 mm will be only 1.5 kilograms.

Metal sewer pipes cannot boast of a large selection of materials; they are produced only from cast iron.

Advantages of cast iron pipes

Durability - the service life of cast iron products exceeds 60 years.
Durability - they allow you to install a riser of almost any length.
Easy installation - the products have a socket, which simplifies installation.

Of course they are very heavy, but this is compensated by their colossal strength.

After familiarizing yourself with the properties of the two types of pipes, you can move on to their sizes.

Plastic pipe sizes

As mentioned above, plastic pipes come in three varieties: PVC, PP, PET. They differ from each other in characteristics, both basic and technical.

And only the sizes remain standard, regardless of the type. Thus, in one system it is possible to use several types from different materials.

PVC pipe size and application

PVC pipes are produced in accordance with GOST R 51613 - 2000 and VSN 48 - 96. Pressure pipelines are regulated by GOST, and non-pressure pipelines are regulated by construction standards (VSN).

In accordance with building regulations, free-flow pipes have three diameter sizes - 50 mm, 90 mm, 110 mm. The wall thickness is 3.2 mm, length 0.5 - 8 m.

Pressure ones differ significantly from their non-pressure counterparts. The number of standard sizes is 13 pieces, and the diameter varies from 63 mm to 315 mm.

However, despite such a large assortment of plastic pipes, not all are in demand. The most commonly used options are:

Apart from the most popular options 100 and 110 mm, the 75 mm pipe is very popular. They are used as outlets from bathtubs and showers.
Pipes with a diameter of 100 and 110 mm are used for the construction of risers and installation of external pipelines.
200 and 300 mm pipes are used for the installation of industrial sewerage.

PET sewer pipes

Polyethylene pipes are produced in accordance with GOST 22689.2-89 regulations, and have only 4 varieties. The diameter is 40, 50, 90 or 110 millimeters. If the pipe is made of low-density polyethylene, then its wall thickness will be only 3 mm.

Pipes made of high-pressure PET are produced in smaller diameters, and the wall thickness is: 3 mm for pipes with a diameter of 40 - 50 mm, and 5 mm for a diameter of 90 - 110 mm. The length can vary from 2 to 9 meters, and this directly depends on the diameter of the product. The larger the diameter, the longer the length of the segment.

Polypropylene pipe

There are also larger polypropylene analogs that are used for laying external drains. For example, products from the well-known brands Pragma and Korsis can have a diameter from 110 mm to 1.2 meters.

Dimensions of cast iron sewer pipes

Functionality is divided into two types:

SMU – there is no detachable connection, i.e. both ends are smooth,
SME - equipped with a bell at one end, smooth at the other.

The wall thickness of cast iron pipes is practically no different from plastic pipes and is 4 - 5 mm. But despite the same dimensions - length, diameter and wall thickness, the mass of metal and plastic products differs significantly. For example, 1 meter of cast iron pipe with a diameter of 100 mm weighs 14 kg, and a plastic analogue of the same dimensions will have a mass of no more than 1.5 kg.

In the table below, you can see the recommended diameters of plastic pipes for internal or external sewerage. All data provided are advisory in nature and may change up or down, depending on the technical characteristics of plumbing fixtures or the sewer system.

Pipe sewer dimensions
Dimensions of sewer pipes made of plastic and cast iron - their length, diameter and weight. Recommended dimensions for internal and external sewerage are given.

Have you ever wondered what causes the high demand for PVC sewer pipes?

The thing is that they are easy to install, easy to use and, most importantly, inexpensive.

The modern market offers a wide range of materials with which sewerage can be installed.

And in order to make the right choice, you need to have at least minimal knowledge about their characteristics.

Purpose of PVC pipes and main characteristics

The scope of application of this material depends on its physical properties. It doesn’t 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. The pipe production process also uses ethylene, stabilized chlorine and additives to improve properties.

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.

Plastic pipes: orange - for external sewerage, gray - for internal

This classification applies to those models that have undergone appropriate processing. Non-plasticized polyvinyl chloride PVC-U has the best technical characteristics.

Performance properties directly depend on technical characteristics. As for PVC pipes, they are characterized by the following indicators:

high level of mechanical strength, moreover, three-layer manufacturing technology and external corrugation allows it to be installed deeply,
resistance to the negative influence of an aggressive environment,
perfectly smooth wall from the inside, which prevents the retention of solid elements,
high internal pressure, minimum 6 bar, maximum 16,
the highest temperature of wastewater 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 figure varies depending on the thickness and diameter),
the tensile strength is 50 MPa, and the service life is about 50 years.

Features of the diameter and size of sewer pipes

Diameter of PVC sewer pipes

D - outer diameter of the pipe, Dy - inner diameter of the pipe, Dр - outer diameter of the socket, Lр - length of the socket, L - length of the pipe without socket, L1 = L+Lp

PVC sewer pipe diameter table

According to the table, a pipe with a diameter of 40 mm at a slope of 1.3 cm should be used to drain the bathtub, then:

shower - diameter 40 mm, slope 1.48 cm,
toilet - 100 mm/1.2 cm,
sink - 40 mm/1.12 cm,
bidet - 30-40 mm/1.2 cm,
sink - 30-40 mm/1.36 cm,
combined drain - 50 mm/1.8 cm,
central riser - 100 mm,
bends from the riser - 65-75 mm.

Pipeline parameters include:

external diameter,
inner diameter,
conditional passage - means internal section,
nominal section.

PVC sewer pipe size chart

The table will help you understand what sizes of PVC sewer pipes there are. You can view it below:

Dimensions of PVC sewer pipes - Table 1

The dimensions of pipes for external sewerage are not regulated in any way; the only recommendation is that its diameter should not be smaller than the circumference of the external main. For example, in private houses pipes with a diameter of 110-250 mm can be used, and in intensive load systems even larger (about 400 mm).

Dimensions of PVC sewer pipes - Table 2

The thickness of the material is also of considerable importance in operation; it depends on the stiffness class to which the pipe belongs. If we talk about the thickness of the walls, then there are no specific standards for the installation of internal sewage systems, but in gravity systems it is not advisable to use pipes thinner than 1.8 mm.

How to choose the optimal diameter of sewer pipes?

the diameter of the horizontal pipe cannot be less than the riser through which the wastewater passes. This may cause blockages,
horizontal connections are mounted only with the help of oblique tees and angles, this prevents unnecessary clogging,
It is mandatory to install an inspection at each turn, which is a special hole for cleaning. In multi-storey buildings they are installed every 3 floors. Even if the area is long (more than 12 m) and deaf, an inspection still won’t hurt,
the optimal slope of the sewer pipe is 1.2 cm,
cutting hollow objects that are not too wide is quite simple using a hacksaw or grinder.

How to choose the diameter? If you use a pipe to drain a dishwasher or washing machine, then its circumference should be 25 mm, and if it is a siphon or shower cabin, then 32 mm. On average, sewer pipes installed inside an apartment should be 40-50 mm. For the street, hollow objects of round cross-section with a diameter of 160-200 mm are used.

Methods for connecting PVC pipes depending on their diameter

If the pipe circumference does not exceed 63 mm, then the following connection technologies are allowed for their connection:

socket welding - the principle is to place a smaller object into one that is larger,
sleeve welding - an additional part in the form of a sleeve is used.

This is what the coupling looks like

Some models have threaded connections and require flare fittings.

In the case of pipes larger than 63 mm in diameter, the butt welding method is used. No couplings are needed here, however, the reliability of the connection is in no way inferior to similar methods.

Diameter and dimensions of PVC sewer pipes
The diameter of PVC sewer pipes is the main parameter when choosing them, and this does not depend on whether the sewage system is installed internally or externally.

PVC pipes for sewerage and water supply. Dimensions

Today you won’t surprise anyone with plastic pipes in water supply and sewerage systems. They are confidently displacing their metal counterparts from this niche of the plumbing market. Plastic pipes, including PVC products, are resistant to chemically active substances, do not corrode and are more durable. Modern industry produces several types of similar pipe products. Their characteristics and main differences will be discussed below.

Modern industry produces a wide range of PVC pipes to solve a wide variety of problems.

Types of PVC sewer pipes and their features

The installation of sewerage systems is carried out on the basis of the following types of PVC products:

gray pipes. Designed for laying an intra-house sewage drainage network. Main diameters of PVC pipes gray are 50 and 110 millimeters. These sizes make it possible to lay plastic sewer lines from any household and sanitary appliances. A wide range of fittings allows you to create a pipeline of various configurations. This factor is important when carrying out work indoors. The strength characteristics of gray PVC pipe allow it to cope with the usual loads that arise in internal networks. But due to insufficient rigidity, such an element engineering communications laying in the ground is not allowed,
orange pipes. External networks are the main area of application for such products.

Helpful information! Orange sewer pipes should not be used in intra-house networks, as they are less resistant to high temperatures.

The standard diameters of orange PVC plastic pipes are 110 and 150 millimeters, which makes it possible to organize the removal of sewage from any buildings and premises. Their main advantage - increased strength - is ensured by a combination of two factors. These are unique physical properties the material itself and increased wall thickness.

In practice, to create external highways, mainly orange smooth-walled products of the following stiffness classes are used:

SN 4: Withstand periodic loads produced by passing light-duty vehicles,
SN 8: Characterized by increased strength. Laying products of this class is allowed under roads with heavy vehicle traffic,
corrugated pipes . Such plastic products have even higher mechanical strength. The outer surface area of a corrugation with a variable cross-section is larger than that of a smooth pipeline element of the same diameter. Due to this, the pressure created by the soil is redistributed. That is why corrugated pipes are even large sizes withstand significant loads.

Gray smooth pipes, are mainly intended for internal sewerage, therefore they are presented on the market in small diameters

The industry produces two types of such products:

single-layer. The inner and outer surface is ribbed. The price of a single-layer corrugated pipe is relatively small. However, the efficiency of drainage through them deteriorates significantly,
two-layer. The inner surface is smooth, and the outer surface is ribbed. This design provides a level of flow resistance no greater than that of traditional smooth-walled sewer pipelines of similar dimensions.

Typical diameters of corrugated PVC pipes range from:

external 110 ≤ D external ≤ 1135 mm,
internal 93 ≤ D internal ≤1000 mm.

Corrugated gray and orange products are widely used in the construction of filtration fields. This material significantly increases the service life of the wastewater disposal system and its durability. If we talk about drainage mains, then their arrangement without PVC corrugated products is simply impossible.

In addition, corrugated plastic pipe products are used for laying electrical communications and serve as their protection from mechanical damage. But there is also such a factor as the possibility of a fire due to a short circuit. And from this point of view, corrugated polyvinyl chloride pipes are an excellent solution. This is not just about the fact that they ignite at a temperature of 400˚C. Corrugated PVC products are also self-extinguishing.

Advantages of PVC pipe products

Plastic PVC pipes have many advantages. Of these it is worth highlighting:

high strength,
absence of the phenomenon of overgrowing of the internal surface with solid deposits. Moreover! The PVC sewer pipe is capable of self-cleaning. That is, the homeowner will not have to regularly clean the system,
wear resistance. The passage of wastewater containing abrasive inclusions does not cause damage to the internal surface of the pipeline,
environmental safety,
affordable price.

PVC pipes can withstand heavy loads without loss of performance; they are suitable for laying in the ground

This list goes on and on. However, the above advantages are enough to give preference to PVC products when creating a sewerage pipeline.

Helpful advice! But we should not forget about the disadvantage of products made from polyvinyl chloride: maximum permissible temperature working environment transported over a long period of time is +40˚С. +60˚С declared by many manufacturers are allowed for short-term movement of liquid at this temperature. Prolonged contact with hot water leads to a sharp reduction in the service life of the PVC pipeline.

How to properly purchase PVC products for sewerage

A wide range of polyvinyl chloride products complicates their selection. Before purchasing, pay attention to the following physical and technical characteristics of such pipes.

strength. The low density of the material leads to sagging of the pipeline over extended sections. The increase in the size of the PVC pipe is especially noticeable when it is filled. Therefore, when installing such sections, you will have to use additional brackets,
working environment. It is possible that aggressive liquids will be present in the sewage system being created. This is important, for example, for small industries. In order for the pipeline to serve for a long time under such operating conditions, correlate the characteristics of its plastic components with the expected composition of the wastewater,
section length. As you know, the linear dimensions of PVC pipes are different. Therefore, when developing a sewer system project, it is necessary to measure all distances. To form straight sections, it is better to use whole pipe products without any additional connections,
pipe diameters. Various sections of the wastewater disposal system are equipped with pipes with different sections. To organize a drain from the bathroom, you can use products with diameters of 50 millimeters. And connecting the system to central riser must be carried out with a pipe with a cross-section of 100 millimeters.

A table of PVC pipe diameters and linear dimensions of sockets is presented below.

PVC pipes for sewerage and water supply
PVC pipe sizes. Kinds sewer PVC pipes and their features. Advantages. How to properly purchase PVC products for sewerage. PVC pipes for water supply. Advantages and disadvantages.

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

polyethylene;
polyvinyl chloride;
polypropylene;
polybutylene.

Why 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 sufficient for cutting, and its small teeth practically do not form burrs.

Key Features

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 environments;
light weight.

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

Size information

The products described may have a variety of sizes. If we are talking about an impressive diameter, then it is designed for increased load, so 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 will be suitable for the operation of industrial facilities. In individual construction, small-diameter products are required. A 150 mm riser will not be fully used, even if there are several bathrooms in the house. Square pipes can be used to solve problems of irrigation of personal plots. To organize drains from individual appliances such as washbasins, showers and baths, you can use 75 mm pipes.

Specifications

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 rupture, the maximum tensile strength is 50 MPa.

Characteristics of plastic sewer pipes for indoor installation

A gray tint indicates that in front of you is a pipe for internal sewerage. It has smooth walls and is connected by a socket. The most popular sizes are: 32, 40, 50 and 110 mm. The length can vary from 315 to 3000 mm. Taking into account the rigidity 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 sewerage

Cost of sewer plastic pipes

Connection Features

Plastic sewer pipes must be securely sealed and connected to each other. Ultimately, the master must obtain a complete design. For this, universal fittings are used, including:

knee;
tee fittings;
siphons.

Carrying out installation

At the next stage, the elements are connected to each other. It is important to check that the product fits into the socket one third of the seat. You don't have to make any special efforts to do this. To ensure tightness, the connections are glued together with a special compound. After applying it, you can put on the fitting. To create a branched system, you can use tees or other distribution elements. After completing the work, it is important to check the tightness of the system within an hour. If no leak is detected, then the installation work was carried out successfully and efficiently.

Features of arranging a sewerage system using plastic pipes

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

If the slope is too great, then build-up 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 wastewater will not leave the house on its own, and 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 drain pipe. It is required for ventilation and is installed at 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 runs through all floors, its diameter should coincide with the outlet pipe from the toilet. This value is 110 mm. In this case, the pipe is routed to the roof, it is left open. It will communicate with the atmosphere and eliminate vacuum, which could lead to the appearance of unpleasant odors.