PVC sewer pipes. An indispensable condition for cleanliness - pipes for internal sewage

Light weight, ease of installation, high melting point are the main criteria that sewer pipes meet. pvc pipes for internal sewerage.

Pros and cons

Among positive characteristics allocate:

  • the absence of corrosive deposits, determined by the resistance to aggressive effects of internal environments and the smoothness of the internal walls. These parameters correspond to PVC and PVC-U products intended for the movement of chemical media;
  • high level of resistance to mechanical stress;
  • low weight (the average weight of a running meter of a pipe is close to 2 kg, based on the parameters);
  • internal voltage 6 - 16 amp., determined by the thickness of the material used, which is the main criterion in the selection.

The main disadvantage is the temperature limitation, which varies in the range of + 60 ° С ... -15 ° С.

Features of choice

The main parameter for choosing PVC pipes is the wall thickness, this is due to the traditional use of non-pressure systems, which eliminates the need to select internal pressure. To achieve strong technical characteristics of the walls of products, the determination of the volume of liquid media and the level of mechanical impact from the outside are advocated. Based on these considerations, pipes are selected according to 2 parameters:

  • internal section provided by the specified number of drains;
  • wall thickness to achieve a given limit of mechanical strength.

Technical specifications

The choice of PVC pipes made in gray tint, defines a number of characteristic features:

  • smooth surface;
  • socket joint;
  • popular parameters: cross section - 3.2, 4, 5 and 11 cm, length 31.5 - 300 cm;
  • the wall thickness is selected in accordance with the conditions of rigidity, for non-pressure systems it reaches a limit of 1.8 mm, for pressure systems - 3.2 mm.

To determine the wall thickness and diameter of the pipes, markings are used on the outside of the products. For pipes marked with the symbol N, the ring stiffness is 4 kN per m2. The letter S is used to mark pipes with ring stiffness up to 8 kN per m2.

The choice of designs according to the parameters of working environments:

  • Non-pressure products are designed to work with working media where the liquid is transported by gravity, its speed reaches up to 8 m/s.
  • Pressure products serve in a system with a pressure of 10 atm. and more.
  • Corrugated pipes are used to create low-current or power supply of liquid media. The main criteria include an increased level of flexibility, which contributes to the creation of a pipeline in hard-to-reach areas without the use of additional devices.

For handling acids, oils, petroleum products or other chemical compounds suitable products from the UPVC series.

Pressure systems

Usage pressure sewerage relevant in difficult cases, its increased cost is due to the use of additional devices:

  • internal installation fecal pumps;
  • near the house they create prefabricated collectors with forced-type submersible pumping systems.

To save resources, it is possible to replace 11 cm pipes with similar structures 5 cm in size. The pipes are buried to a small height, which is explained by the absence of the need to observe a gravity slope. The presence of sockets with rubberized seals suitable for pressure, vacuum systems provides savings on the use of fittings in 70% of cases.

Non-pressure systems

They are produced in the form of measured segments with a length of 1-6 m. PVC designs are 50 and 110 mm. The production of industrial systems developed using coextrusion technology (multilayer extrusion) is carried out in segments of 12 and 6 m. And their cross section varies in the range of 9 - 200 cm. PVC structures intended for installation in apartments and private houses are designed for temperature conditions within 0…45 gr.

Based on the type of structures, internal PVC pipes are divided into bell-shaped and products connected through a coupling. Socket structures are represented by measured segments with standard parameters, and a thickening (bell) at one end. On the other hand, they have a perfectly smooth surface. The products connected in the coupling have the same cross-section along the entire length.

Corrugated pipes

At in large numbers household appliances and furniture, unobstructed installation of pipes in some areas is not possible.

By creating a system exclusively from inelastic structures, there is a risk of losing free space. Corrugated pipes in the room are usually installed under the washbasin.

Product Features:

  • Small cross section. To ensure the normal functioning of the system indoors, large products are not required.
  • Designs are available in white or gray. The absence of dyes in raw materials contributes to their cost reduction.
  • In some sections of the internal sewerage, the installation of heat-resistant corrugated pipes is required. They are used for direct connection of a washing machine or dishwasher equipment, ensuring the passage of hot sewage, which means that resistance to temperature extremes is the main selection criterion.
  • All corrugated pipes are equipped with a socket, which eliminates the need for special skills and tools during installation. Usually cost sanitary glue or sealant.

uPVC pipes

For the internal laying of networks, PVC-U structures are used that correspond to the following parameters:

  • 2.5, 4, 5 and 11 cm - for wiring devices;
  • 11 ... 15 cm - for arranging risers.

Pipes are supplied in lengths from 30 to 200 cm.

Criterias of choice:

  • low weight, reducing costs by eliminating the need for heavy equipment and the complexity of installation;
  • PVC-U constructions resist corrosion, have high resistance to chemical environments;
  • the service life reaches up to 50 years.

The main disadvantages include a number of characteristics:

  • small range operating temperature(from -5 to +40-60 °С);
  • release of toxic elements during melting;
  • exposure to rodents.

Manufacturing technology of PVC products

PVC pipes are developed using extrusion technology - extrusion of a heated polymer, which turns into a solid crust after solidification. Modern manufacturers use 2 types of polymer extrusion:

  1. single-layer, used to create monolithic pipeline systems;
  2. multilayer, used for structures with complex profile(corrugated systems and reinforced).

The latter is designed for punching through several layers of polymer, sticking together immediately after cooling. This process improves quality characteristics pipeline systems.

The development of PVC pipes is made from a thermoplastic that has undergone heat treatment to maintain its shape. The main components of PVC are ethylene and chlorine, additional additives improve PVC characteristics products.

There are 2 types of raw materials for the development of PVC pipes:

  • composition of PVC (PVC);
  • PVC-U (PVC-U) unplasticized.

PVC-U pipes meet high technical specifications, which determines their use in pressure systems.

Laying of pipeline systems

For intra-house wiring, gray pipes are usually used, characterized by a homogeneous structure of the composition, increased heat capacity and a sufficient level of longitudinal rigidity. They are fixed to the walls to eliminate mechanical stress, and ensure a stable gravity slope. PVC structures are aesthetic, they do not require additional masking. Internal coating has a smooth surface, the use of high-pressure cleaning technology allows you to remove blockages and restore the original state, which determines the high resource of the system.

The sewer system made of PVC pipes is joined using socket technology with internal rubberized seals in the form of rings. Pipes are expanded from hot drains and connected to expansion holes. For this, special marks are provided on the smooth ends of pipes and fittings, which act as a guideline when connecting pipes. Expansion joints on risers are placed between floors and contribute to the implementation of similar tasks on vertical lines.

Step by step instructions:

  1. The elements of the system are adjusted to each other, checking the compliance of the slope angle.
  2. Markup is carried out, eliminating further confusion in the placement of components.
  3. Connect the elements of the system.

  1. To impart hermetic properties, all docking areas are connected with special glue (for a stronger fixation, all contacting elements are provided with a rough coating).
  2. After coating adhesive layer put on the fitting.
  3. To create branches on pipelines, tees or other distributors are used. Connecting fittings to pipes is similar to connecting pipes to each other.

  1. After completion of work, it is required to check the level of tightness of the system within 60 minutes. In the absence of leaks, the installation of pipes was carried out at a high level.

Fittings for PVC pipes

Properly selected fittings are used for hermetic joining of pipes, excluding the formation of unforeseen emergencies. The main list of connecting elements includes:

  • knee;
  • "Y" and "U" shaped fittings;
  • couplings;
  • bushings;
  • viewing hatches.

Fittings are used only for horizontal laying of the highway. Turning sections form an accumulation of debris, which requires the installation of a revision. When docking products, there are a number of restrictions. The pipeline is connected at an angle of 45, 67, 87 or 90 degrees.

For corner connection piping systems used additional type fittings - corners. They provide a flow change at an angle of 90 or 45 gr. But if necessary, it is possible to purchase corners for 30 and 60 gr.

To connect pipes with different cross sections, transitions are used that provide connection to pipes of 110 mm of products with a cross section of 50 mm.

Estimated prices

Video

The Truba-Plast company offers PVC pipes (NPVC) for internal sewerage. Ring stiffness class - "SN 4". Standard sizes DN (OD) - according to the outer diameter: 50 mm and 160 mm, while OD 50 pipes are produced with a wall thickness of 1.8 and 3.2 mm, and OD 110 pipes with walls of 2.2 mm and 3.2 mm. The length of the segments varies from 0.5 to 3 meters. All pipes have an extension at one end (socket) for pipe-to-pipe connection.

Pipes are available in the following diameters:

  • for horizontal lines and siphons - 25, 40, 50, 110 mm;
  • for bends and risers - 110 and 150 mm.

For the production of internal sewerage systems for various purposes polyvinyl chloride PVC (PVC) or modified unplasticized polyvinyl chloride PVC, gray pipes are used. Also, with the use of certain technologies, the final product can be given additional properties.

PVC pipes (UPVC) for internal sewerage are divided into several types according to the connection method: with a socket, without it, threaded PVC. Scope: use in conventional systems or laying in the ground - depends on the SN hardness grade.

Advantages of PVC

PVC pipes (UPVC) for internal sewerage have a number of qualities due to which its use is relevant:

  • low weight of products, which helps to reduce transportation costs and reduce installation time;
  • resistance to corrosive processes and external chemical irritants;
  • long term operation (average 50 years);
  • have good hydraulic characteristics that remain unchanged throughout the entire period of use;
  • this material is easily cut, which makes it possible to fit products under right size on the certain area;
  • externally well combined with other systems.

Our products are made from high quality materials, and comply with GOST quality standards, technical requirements and norms. For any questions, you can contact our managers.

The internal and external sewage systems differ from each other, both in the requirements for them and in the features of operation. Therefore, the pipes used in their installation have differences.

You can read about the features of plastic pipes for an external system in, here we will talk about polyvinyl chloride (PVC) pipes for internal sewage. But first, let's figure out why this material has become so popular, because until recently, internal sewer pipes were mostly cast iron.

Advantages of PVC pipes

most practical and the best option, with any device sewer system, PVC pipes are considered. They are made of plastic that is resistant to aggressive chemicals (acids, alkalis, etc.). Optimal temperature Range for PVC pipes from 65º C to -15º C.

That plastic does not tolerate well low temperatures can be easily compensated with . In addition, they still have a number of additional advantages.

First, corrosion resistance. Unlike the same cast iron, plastic does not rust, which is a big plus.

Secondly, microorganisms do not accumulate on the inner surface of PVC pipes. After all, bacteria in the course of their life activity secrete acid, which adversely affects any surface.

Due to all of the above, such pipes will last much longer than their counterparts. Repair or replacement of the pipeline will be required in 30-50 years. In addition, due to the light weight and simple socket fastening, even an unprepared person can produce it.

In addition to all the above advantages, pipes for has a number of features.

Features of pvc internal sewer pipes

Internal sewerage is used to collect wastewater from plumbing fixtures in the house and their further transportation to the outdoor system. Hot water from washing machines, dishwashers, bathtubs, etc. often passes through the internal piping.

So all its elements must be resistant to high temperatures. PVC has a high melting point, therefore, even in its production, additional additives are rarely used.

Since internal pipelines are most often made hidden, they appearance irrelevant. Thus, the cost can be reduced even at the manufacturing stage. Standard interior color sewer pipes- light grey.

The drains in the system are collected from several sources, so the diameter of the pipe is required less than for, which receives water from the whole house.

Types of inner pvc pipes

All sewer pipes are divided into types, internal ones are also no exception. They have three varieties:

  1. non-pressure;
  2. pressure;
  3. corrugated.

Pressure

used for device compulsory system withdrawal Wastewater. Areas where the movement of fluid is carried out under pressure, due to the operation of special pumps, are equipped with just such pipes. Applied in apartment buildings and in large buildings.

Non-pressure

Not designed to work in systems with forced pumping of wastewater. They are used for gravity sewerage. The wall thickness of non-pressure ones is thinner than the previous ones.

Corrugated

Have a smooth inner surface and ribbed outer. Flexible, therefore used in hard-to-reach places.

Prices and sizes of PVC pipes for internal sewerage

Their cost is mainly affected by their size - length and diameter. The table below shows the average prices for pvc domestic sewer pipes.

Diameter (mm)Length (mm.)Price, rub.)
50

Wall thickness 1.8 mm.

500 30
1000 55
1500 80
2000 100
3000 150
500

Wall thickness 3.2 mm.

500 50
1000 80
1500 150
2000 170
3000 250
110

Wall thickness 2.2 mm.

500 70
1000 135
1500 195
2000 250
3000 370
110

Wall thickness 3.2 mm.

500 90
1000 165
1500 240
2000 320
3000 490

Video: Sewer pipes ... Domestic sewage

Polyvinyl chloride pipes (PVC) are made from a thermoplastic of the same name, which retains its shape after heat treatment. The main components of polyvinyl chloride are ethylene and stabilized chlorine, and with the help of additional additives, the properties of PVC pipes are improved.

PVC pipes are most often used for sewer networks due to ease of installation and low cost. Material for the production of PVC pipes: PVC polyvinyl chloride (PVC) and its twin PVC-U polyvinyl chloride (PVC-U) unplasticized. PVC-U pipes have the best specifications, and this allows them to be used in pressure systems, so they are used more often.

Advantages and disadvantages of PVC pipes

PVC pipes, thanks to a range of benefits, have become a leader among similar products for laying sewers:

The main disadvantage of PVC pipes is temperature limits, which are not more than +65°С and not less than -10°С.

Use of PVC pipes

On PVC pipes, it is possible to implement sewage systems of the following types:

  • internal sewerage;
  • external sewerage;
  • pressure systems outdoor sewerage;
  • gravity discharge of sewage.

The species names sewer systems accurately reflect the essence of the application. But it should be noted that of the types of pipes used, PVC-U is more often used, since they have better strength characteristics.

Selection and application of PVC pipes

A feature of sewer pipes when choosing is not quite the usual criterion - wall thickness. This stems from the fact that non-pressure pipes, and most sewer systems are non-pressure, there is no need to choose according to internal pressure. The only reasonable approach is to ensure sufficient strength pipe walls for the volume of liquid that will fill it, and possible mechanical effects from external environment. For such reasons, when choosing sewer pipes, two parameters are taken into account:

  • inner diameter, which should provide the predicted volume of effluents;
  • wall thickness to ensure sufficient mechanical strength against the vicissitudes of fate.

Internal sewerage

For internal sewerage, as a rule, PVC pipes are used, which have grey color. Their characteristic features:

  • smooth-walled;
  • connection - socket;
  • a range of popular sizes: diameters - 32, 40, 50 and 110 mm, lengths from 315 to 3000 mm;
  • the thickness is chosen from the conditions of rigidity, but as a requirement for gravity systems, it cannot be less than 1.8 mm.

Outdoor sewerage

Pipes orange or yellow colors are intended for outdoor installation and are operated in more severe conditions, therefore, for each diameter there is a list of wall thicknesses for them. So, for example, data for a diameter of 200 mm:

  • for lungs stiffness conditions (SN 2) with a depth of up to 4 m, wall thickness 3.9 mm;
  • for medium rigidity conditions (SN 4) with a depth of up to 6 m, wall thickness 4.9 mm;
  • for heavy rigidity conditions (SN 8) with a depth of up to 8 m, wall thickness 5.9 mm.

The same tabular data is available for other diameters. When designing sewer systems, they are taken into account.

Sewerage using pressure and non-pressure PVC pipes

In systems with forced removal of drains, i.e. with using pumps, PVC pressure pipes are used. They are characteristic high blood pressure on the walls, and therefore the requirements are appropriate. Three types are available pressure pipes on pressure 6, 10 and 12.5 kg / cm2 Additionally, you should choose the connection method:

Gravity sewer system uses the movement of wastewater under the action gravity. To select such pipes, the external load is taken into account, and during installation, the slope of the pipeline is provided. Usually, pipes with a socket are used for non-pressure sewage.

The difference between PVC pipes and other polymer pipes

The most common plastic is polyvinyl chloride - far from the only polymer that is used in the manufacture of sewer pipes. Along with it, the following plastics are used:

  • PE polyethylene- the most common plastic for the manufacture of pipes for transporting water. Due to temperature limitations, it is only applicable to cold water.
  • cross-linked polyethylene- resistant to UV radiation, withstands high mechanical loads, has an upper temperature threshold of + 95 °C, soldered connection, used for cold and hot water;
  • polypropylene PPE- Polypropylene pipes are widely used in various industries due to their good mechanical properties and chemical resistance. Particularly successful use polypropylene pipes in cold and hot water pipes.
  • polybutylene PB- cross-linked polyethylene, not widely used due to insufficient durability. Structural defects, cracks and delamination appear after a few years. Produced in small quantities.
  • polyvinylidene fluoride PVDF is a semi-crystalline thermoplastic with excellent mechanical, physical and chemical properties and is used in the pharmaceutical industry for drug transfer.

Many of the plastic pipes can compete with PVC, but in terms of the “price-quality” advantages, they have no competitors.

PVC sewer pipe prices

Prices for any product - the most interesting part after the discussion technical merit. You can never rely on numbers here. today- they largely depend on the manufacturer. And then there's the shipping cost. But all the same, landmarks need to be identified, so let's take one of the cost options for pipes with a diameter of 110 mm. This amounts to 165 rubles per 1 linear meter.

Additionally, it should be noted that the prices for PPE pipes, the closest competitor of PVC, almost 3 times higher, although at larger set positive qualities. In such cases, they say that there is an excess of advantages, but whether it is worth paying for them is up to the consumer.

The final cost of sewerage construction, taking into account the installation of the system, can add completely unexpected somersaults to the estimate. For a rough estimate, let's take the option of calculating the construction of sewerage in the country with our own hands.

It is assumed that the dacha is in standard conditions: the terrain is insignificant, the groundwater level is low, there are no quicksands, there is a place for discharging purified water, etc.

This article discusses in detail the features of products such as PVC pipes for sewerage: the dimensions and prices of plastic elements and additional components used to install a drainage system. In the text you can find the classification of pipes, their advantages and disadvantages, as well as an overview of the catalogs offered hardware stores. This information can be used to select and purchase PVC products in order to install sewers.

Sewerage is constructed on the basis of pipes, which are an integral part of the system. During operation, these elements are subjected to static and dynamic loads, therefore, the choice of products should be approached thoroughly and attention should be paid to technical characteristics.

PVC products are widely used for arranging both internal and external sewage systems. Among other polymer products, they are considered the most popular and in demand. These plastic items cylindrical shape are made on the basis of polyvinylchloride thermoplastic. This material has one advantageous property, due to which PVC pipes acquire improved characteristics. The fact is that the polyvinyl chloride thermoplastic after heat treatment and the extrusion procedure retains its shape well.

According to GOST 51613-2000, non-pressure PVC pipes for sewerage are tested for impact strength using the Charpy system. The maximum allowable number of elements that are subject to destruction should not exceed 10%.

Note! A slight change in the length of the elements after heating is allowed, but not more than 5%.

GOST also defines standard sizes plastic pipes for sewerage, as well as limit deviations from the parameters that are acceptable in quality products. Polyvinyl chloride contains two components in its composition - stabilized chlorine and ethylene. In order to improve performance, manufacturers add various additives to thermoplastic mixtures. As a result, under the influence high pressure a composite joint with a high margin of safety is obtained.

Why is it profitable to buy PVC pipes for sewerage

Polymer products have many advantages. Manufacturers endowed plastic pipes with low weight, while maintaining a fairly high level of strength. The cost is affordable for most buyers, so consumers prefer this particular type of product.

Advantageous operational characteristics can also be attributed to the number of the most important advantages. Internal walls polymer pipes have a smooth surface with a slight presence of longitudinal stripes and waviness, so the likelihood of blockages caused by the accumulation of fecal fractions or growths is extremely low. Plastic is not subject to corrosion and is resistant to aggressive environments.

For the construction of a pressure sewer, PVC pipes are ideal. Moreover, the installation of the system can be performed with my own hands. This does not require the use of special equipment. Available in a wide variety of sizes and mounting elements, which greatly simplifies the design and installation of piping.

Frost resistance is inherent in products intended for laying external sewerage. The effective service life of pipes made on the basis of polymers exceeds 50 years. If strictly adhere to the requirements assembly technology, the sewer line will not be displaced. Docking nodes often diverge when the level of groundwater changes. But if there were no violations during the installation process, even under such conditions, the system of polymer pipes remains airtight.

Important! Under the influence of ultraviolet, the performance of pipes decreases. Therefore, it is not recommended to store products in places where they will be exposed to direct sunlight.

Types of plumbing pipes and PVC adapters for sewerage

Range plastic products is very wide, so that consumers can buy plastic pipes for sewerage of any modification and purpose. Taking into account the purpose and operating conditions, three categories of elements for the construction of the highway can be distinguished.

All of them are in full accordance with the main standard sizes. Products with lightweight construction (SN-2), used for laying sewerage in the area pedestrian sidewalk. The scope of their application also extends to recreation areas with green spaces, as well as areas that are not subject to traffic loads.

Pipes with average parameters (SN-4) are laid in areas where there is little traffic. Especially for industrial areas, pipes of heavy type (SN-8) are provided. These products are suitable for the organization of the sewer system in places with high traffic.

In addition to straight pipes for the construction of sewers, connecting elements are used. With their help, you can organize the turns of the line (fittings equipped with a rubber seal). Also, on their basis, toilet bowl connections with sewerage from plastic pipes or joints between other elements are formed.

The following types of adapters are on sale:

  • couplings for repair maintenance of the network;
  • reductions connecting elements with differences in section size;
  • tees and crosses for the formation of wiring of several pipes;
  • rotary bends;
  • expansion pipes for repair work.

In addition, in stores you can buy plastic sewer hatches in order to carry out an audit. These elements are also used to service the system when blockages occur.

PVC pipes for sewerage: dimensions and product prices

The most demanded diameter of PVC sewer pipes is 110 mm. Such products are lightweight and do not cause difficulties during installation. Pipes intended for construction outdoor system, can have two-, one- and three-layer structure. The outer layer is made of unplasticized PVC. In three-layer products, the inner layers are made of foam material having a porous structure. It is a recycled product.

The connection of the pipe walls is carried out simultaneously with the help of "hot" technology. The result is a cylindrical product with monolithic construction. Due to the cavities that are formed between the walls, it is possible to reduce the weight of the pipe.

Classification of products according to the class of ring stiffness:

  1. L - light products that are laid to a depth of 80-200 cm.
  2. N - pipes of medium hardness, designed for installation at a depth of 2-6 m.
  3. S - rigid products with big thick walls that can withstand loads at a depth of up to 8 m.

Useful advice! For the organization of the external system, it is recommended to use two-layer pipes with a corrugated structure. Due to the presence of stiffeners with outside increases the strength of products.

Ring stiffness is marked with the abbreviation SN. Technical specifications pressure pipes and elements for systems where the movement of wastewater is carried out by gravity are completely different. In each case, the sewage system is subjected to different loads: head pressure or the influence of gravity. For this reason, the prices of pressure-type sewer plastic pipes are much higher than those of elements for gravity systems.

Pressure type pipes are presented in three variations, capable of coping with pressure effects of 10, 6 and 12.5 kg per cm².

Dimensions and prices of plastic pipes for sewerage: external system

For the construction of sewerage of external and internal types, products of different sections are used.

Typical dimensions of the diameter of plastic pipes for sewerage:

  • 110 mm - the minimum cross-sectional size for pipes for outdoor use, used to divert wastewater in summer cottages;
  • 315 mm - products with such a cross section are intended for the construction of a common sewer system serving several houses;
  • 630 mm - pipes with maximum size sections for the construction of a highway capable of serving a small village.

In addition, to work with external system you will need to buy a hose for pumping sewage, made of polyvinyl chloride.

Fecal hose prices:

Manufacturer price, rub.
Pedrollo TR (10 m) 1650
Omnigena (100 m) 2500
Aqua Planet Group (25 m) 2870

Pipes for external sewerage are made in orange, so they cannot be confused with other product options. Cylindrical elements can have different lengths. The most popular segments are 0.5, 1 and 2 m. There are other variations, for example, 3 m and 6 m. Some manufacturers have an extended range of sizes. They offer individual elements with a length of 12 cm.

Average prices for pvc products class SN 4 for outdoor sewerage:

Diameter, mm Product length, mm price, rub.
110 560 95
1000 162
2000 310
3000 455
4000 594
6060 896
125 572 116
1072 204
2072 403
3072 553
4072 805
6072 1050
160 580 182
1000 294
2000 565
3000 837
4000 1098
6080 1662
200 606 230
1200 527
2000 862
3000 1274
4000 1673
6090 2530
315 1200 1225
2000 1973
3000 2887
4000 3917
6140 5752

The price of PVC sewer pipes for domestic sewage

Pipes intended for arrangement internal system taps, made in gray color. They have a low price, since these products are characterized by a light stiffness class and are completely unsuitable for outdoor work. The most popular PVC pipes for sewerage are 50 mm in diameter. Although there are other cross-sectional sizes on sale - 32, 40 and 110 mm.

The inner walls of the gray pipes are smooth. The elements are connected to each other using the "bell" technology. The length varies in the range from 25 cm to 3 m, although non-standard sizes are also found.

Note! A branch connecting plumbing with vertical pipe, should correspond to the diameter of the riser. The use of a section of a smaller size is not allowed.

For construction waste system in the bathroom it is recommended to use pipes with a cross section of 75 mm. They are suitable for connecting a shower enclosure, bidet and washbasin with public sewerage. They are characterized by a fairly high throughput.

For domestic drains, products with a diameter of 50 mm will suffice. They are light, flexible and resistant to high temperatures (hot water) and chemicals (in case of system cleaning). by chemical means). To connect the toilet, it is better to take products with a section size of 100-110 mm. They will withstand strong pressure, because they have a special resistance.

Dimensions and prices of PVC pipes for indoor plumbing:

Diameter, mm Product length, mm price, rub.
32 250 30
500 45
1000 60
2000 105
40 250 32
500 47
1000 63
2000 108
50 250 35
500 48
750 55
1000 65
1500 86
2000 113
3000 150
110 250 90
500 120
1000 160
2000 240
3000 450

Catalog of fittings for PVC sewerage and prices for products

The fittings are used in systems where the effluent temperature does not exceed 80ºC. The products also withstand short-term discharge of waste fluid at temperatures up to 95ºC.

In this case, stock means:

  1. Dirty water from the toilet.
  2. Waste fluid from the shower and sink.
  3. Chemical compositions with a pH level in the range of 2-12.

For internal sewerage, the following details are used:

  • couplings (with stop, full bore for repair);
  • reduction;
  • revisions with cover;
  • tees (with an angle of 90, 67, 45º);
  • two-plane crosses (with an angle of 90 and 45º);
  • plugs;
  • single-plane crosses (with an angle of 90 and 45º);
  • bends (with an angle of 45, 30 and 90º);
  • compensation pipes.

A set of fittings for an external sewer system looks almost the same, although it does not do without certain differences.

For external sewage, the following details are used:

  • standard bends (with an angle of 30, 15, 45, 90 and 67º);
  • double-socket bends, equipped with rubber rings on both sides;
  • standard couplings;
  • standard and three-socket tees (the last option with an angle of 90º);
  • single-plane crosses (90º);
  • , mounted horizontally with a slope of 2 cm per 1 m of length;
  • double siphons.

Average prices for connecting elements for an outdoor system:

Item type Diameter, mm Angle, º price, rub.
Withdrawal 110 15 125
30 125
45 130
60 150
87 130
125 45 135
87 135
160 15 242
30 264
45 295
60 315
87 367
Tee 110/110 45 235
125/110 45 275
125/125 45 345
125/110 87 355
125/125 87 360
160/110 45 430
160/160 45 590
160/110 87 400
160/160 87 480
revision 110 - 480
125 - 500
160 - 595
Stub 110 - 48
125 - 100
160 - 135
Coupling 110 - 107
125 - 110
160 - 255
check valve 110 - 1940
125 - 2500
160 - 3585

Do-it-yourself recommendations for installing sewerage from plastic pipes

The sewer system in old buildings was predominantly made of cast iron. Despite the practicality of this material, sooner or later it needs to be replaced. For the construction of modern risers, more durable and lightweight materials are used.

Useful advice! When replacing the pipeline, it is possible to organize ventilation, which was absent in old-type systems. Thus, it will be possible to eliminate unpleasant sewer odors that can enter the room.

Experts even recommend abandoning the use of galvanized and, the period of which is no more than 10 years, and giving preference to polyvinyl chloride or polypropylene products. The shelf life of elements made of polymers is 30-50 years.

For dismantling old sewer you will need the following tools:

  • screwdrivers big size to get small parts out of the system;
  • grinders with a disk for metal;
  • plastic film to cover the cut pipe opening;
  • nail puller and chisel;
  • funds personal protection(glasses, gloves, apron);
  • hammer and perforator;
  • scrap and grinder.

How to make the transition from a cast-iron pipe to a plastic sewer: dismantling the old system

First you need to designate the necessary indents. The first mark is placed at a distance of 10 cm from the ceiling level, and the second - at a distance of 80 cm from the tee. In the marked areas, it is necessary to make cuts with the help of a grinder, with a depth of half the pipe section. A chisel should be attached to the upper file and hit with a hammer.

A similar procedure must be performed from below. Force must be applied to the blow with a hammer so that the cast-iron pipe splits, and its middle part can be removed.
The section of pipe coming from the ceiling must be covered with plastic wrap.

The lower part of the system consists of a tee and other connecting elements. To dismantle it, you will need a crowbar or a nail puller. These tools are necessary in order to loosen the fixation zones. When this is done, you can remove the . In some cases, you can not do without the use of a perforator. It allows you to remove the cement that fixes the fasteners.

It is allowed to use a screwdriver or a chisel, with which you can chip off the cement. After that, the tee is removed. If it was not possible to complete this procedure, you can use a grinder equipped with a disc designed to work with metal surfaces to cut the fitting. In this case, you should step back from the socket by about 3 cm. After dismantling the connections, you should carefully clean the areas of their placement from dirt, and then treat the surface with a grinder.

Useful advice! Before starting work, it is imperative to notify the neighbors, since during the replacement of the pipeline it is impossible to use the bathroom and the bathroom. Otherwise, water from the upper floors will pour into the room and flood the neighbors below. For the same reason, all work must be carried out as quickly as possible.

Installation instructions for sewerage from plastic pipes

To perform installation work, you will need the following tools and materials:

  • pipes with a section size of 110 mm;
  • outlet tee;
  • rubber cuffs designed to seal and fix the fasteners between the PVC pipe and the scraps of the cast iron system;
  • a branch pipe that provides a transition from a cast-iron pipe to a plastic one and vice versa;
  • fastenings for pipes;
  • soap to be used as a lubricant to facilitate the installation of fasteners;
  • vertical building level.

The process of installing plastic pipes is carried out in a similar way, only in reverse order. In slices cast iron pipes rubber seals must be inserted. The adapter is installed from above, from below it is necessary to mount the tee. The fixation of all elements should be as tight as possible to ensure the tightness of the sewer system. If the tee is loose in the joint, it can be sealed with linen tape or a silicone-based sealant.