Internal and external sewerage systems differ from each other, both in the requirements placed on them and in the operating features. Therefore, the pipes used during their installation are different.
About the features plastic pipes for an external system you can read in, here we’ll talk about polyvinyl chloride (PVC) pipes for internal sewerage. 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
The most practical and the best option When installing any sewer system, PVC pipes are considered. They are made of plastic that is resistant to aggressive chemicals (acids, alkalis, etc.). The optimal temperature range for polyvinyl chloride pipes is from 65º C to -15º C.
What plastic doesn't do well low temperatures can be easily compensated using . In addition, they also have a number of additional advantages.
Firstly, it is corrosion resistant. Unlike 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 during their life processes produce acid, which negatively affects any surface.
Due to all of the above, such pipes will last much longer than their analogues. Repair or replacement of the pipeline will be required in 30 - 50 years. In addition, due to its light weight and simple socket fastening, even an unprepared person can produce it.
In addition to all the above advantages, the pipes have a number of features.
Features of internal PVC sewer pipes
Internal sewerage serves to collect wastewater from plumbing fixtures in the house and transport it further to the external system. Hot water from the washing or washing machine often passes through the internal pipeline. dishwasher, baths, etc.
This means that 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 doesn't matter. In this way, the cost can be reduced even at the manufacturing stage. The standard color of internal sewer pipes is light gray.
The drainage in the system is collected from several sources, so the diameter of the pipe is required less than for one that receives water from the entire house.
Types of internal pvc pipes
All sewer pipes are divided into types; internal ones are no exception. They have three varieties:
- non-pressure;
- pressure;
- corrugated.
Pressure
Used to install a forced drainage system waste water. Areas where fluid movement is carried out under pressure, due to the operation of special pumps, are equipped with just such pipes. Used in apartment buildings and in buildings with large areas.
Gravity
Not intended for use in systems with forced drainage. 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 internal PVC 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...Internal sewerage
This article discusses in detail the features of such products as PVC pipes for sewerage: sizes and prices of plastic elements and additional components, used for installation of a wastewater disposal system. In the text you can find a classification of pipes, their advantages and disadvantages, as well as an overview of catalogs offered by hardware stores. This information can be used to select and purchase PVC products for sewer installation.
The sewerage system is constructed on the basis of pipes, which are an integral part of the system. During operation, these elements are subject to static and dynamic loads, so the selection of products should be approached thoroughly and attention should be paid technical specifications.
Polyvinyl chloride products are widely used for the construction of both internal and external sewerage systems. Among other polymer products, they are considered the most popular and in demand. These cylindrical plastic products are made from polyvinyl chloride thermoplastic. This material has one advantageous property, due to which PVC pipes acquire improved characteristics. The fact is that polyvinyl chloride thermoplastic retains its shape well after heat treatment and extrusion.
According to GOST 51613-2000, free-flow PVC pipes for sewerage are tested for impact strength using the Charpy system. The maximum permissible number of elements that are subject to destruction should not exceed 10%.
Pay attention! 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 maximum deviations from the parameters that are permissible in quality products. Polyvinyl chloride contains two components - stabilized chlorine and ethylene. In order to improve performance characteristics, manufacturers add various additives to thermoplastic mixtures. As a result, under the influence high pressure a composite connection with a high margin of safety is obtained.
Why is it profitable to buy PVC pipes for sewerage?
Polymer products have many advantages. Manufacturers have allocated plastic pipes light weight, while maintaining enough high level strength. The cost is affordable for most buyers, so consumers prefer this type of product.
The most important advantages also include profitable performance characteristics. Inner walls polymer pipes have 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.
PVC pipes are ideal for the construction of pressure sewers. Moreover, installation of the system can be done with my own hands. This does not require the use of special equipment. A wide variety of sizes and mounting elements are available, which greatly simplifies the design and installation of pipeline wiring.
Products intended for laying external sewerage, frost resistance is inherent. The effective operational service life of pipes made from polymers exceeds 50 years. If you strictly follow the requirements installation technology, the sewer line will not be displaced. Docking nodes often diverge when the level of occurrence changes groundwater. But if there were no violations during the installation process, even in such conditions the system of polymer pipes remains sealed.
Important! Under the influence of ultraviolet radiation, the performance characteristics of pipes are reduced. 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
Assortment plastic products is very wide, thanks to which 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 highway construction can be distinguished.
All of them are in full compliance with the main standard sizes. Products with lightweight construction (SN-2) are used for laying sewerage in the pedestrian sidewalk area. 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. Pipes are provided especially for industrial areas heavy type(SN-8). These products are suitable for organizing a sewer system in areas with high traffic flow.
In addition to straight pipes for sewer construction, connecting elements are used. With their help, you can organize turns of the line (fittings equipped with a rubber seal). They are also used to form connections between the toilet and the sewer system from plastic pipes or joints between other elements.
The following types of adapters are available for sale:
- couplings for network maintenance;
- reductions connecting elements with differences in section size;
- tees and crosses for forming the distribution of several pipes;
- rotary bends;
- expansion pipes for repair work.
In addition, you can buy plastic sewer hatches in stores to carry out inspections. These elements are also used for service systems when blockages occur.
PVC pipes for sewerage: sizes and prices of products
The most popular diameter of PVC sewer pipes is 110 mm. Such products are lightweight and do not cause difficulties during installation. Pipes intended for the construction of an external system can have a two-, one-, or three-layer structure. The outer layer is made of non-plasticized PVC. In three-layer products, the inner layers are made of foam material having a porous structure. It is a recycled product.
The pipe walls are connected simultaneously using “hot” technology. The result is a cylindrical product with monolithic design. Due to the cavities that form between the walls, it is possible to reduce the weight of the pipe.
Classification of products by ring stiffness class:
- L – lightweight products that are laid to a depth of 80-200 cm.
- N – pipes of medium hardness, intended for installation at a depth of 2-6 m.
- S - rigid products with large wall thicknesses that can withstand loads at a depth of up to 8 m.
Useful advice! To organize an external system, it is recommended to use double-layer pipes with a corrugated structure. Thanks to the presence of stiffening ribs on the outside, the strength of the products increases.
Ring stiffness is marked with the abbreviation SN. Technical Parameters pressure pipes and elements for systems where the movement of wastewater is carried out by gravity are completely different. In each case, the sewerage system is subjected to different loads: head pressure or the influence of gravity. For this reason, prices for pressure-type sewer plastic pipes are significantly higher than for elements for gravity systems.
Pressure pipes are presented in three variations, capable of coping with the influence of pressure of 10, 6 and 12.5 kg per cm².
Dimensions and prices of plastic pipes for sewerage: external system
For the construction of outdoor and internal type products of different sections are used.
Typical diameter sizes of plastic pipes for sewerage:
- 110 mm – minimum size sections for external pipes, used for drainage in summer cottages;
- 315 mm - products with this cross-section are intended for the construction of a general 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 sewer pumping hose made of polyvinyl chloride.
Prices for fecal hoses:
| Manufacturer | Price, rub. |
| Pedrollo TR (10 m) | 1650 |
| Omnigena (100 m) | 2500 |
| Aqua Planet Group (25 m) | 2870 |
Pipes for external sewerage are manufactured in orange color, so they cannot be confused with other product options. Cylindrical elements can have different lengths. The most popular lengths 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 external 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 |
Price of PVC sewer pipes for internal sewerage
Pipes intended for installation internal system bends are made in gray color. They have a low price, since these products are characterized by a light rigidity class and are completely unsuitable for outdoor work. The most popular PVC pipes for sewerage are 50 mm in diameter. Although there are other section sizes on sale - 32, 40 and 110 mm.
The inner walls of gray pipes are smooth. The elements are connected to each other using the “socket” technology. The length varies from 25 cm to 3 m, although non-standard sizes are also found.
Pay attention! The branch connecting the plumbing to the vertical pipe must correspond to the diameter of the riser. The use of a smaller section is not allowed.
To build a drainage system in a bathroom, it is recommended to use pipes with a cross-section of 75 mm. They are suitable for connecting shower cabin, bidet and washbasin with public sewerage. They are characterized by a fairly high throughput.
For domestic wastewater, products with a diameter of 50 mm will be sufficient. They are light, flexible and resistant to high temperatures (hot water) and chemicals (in case of cleaning the system chemically). To connect the toilet, it is better to take products with a cross-sectional size of 100-110 mm. They will withstand strong pressure because they are particularly durable.
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
Fittings are used in systems where the wastewater temperature does not exceed 80ºC. The products also withstand short-term removal of waste liquid at temperatures up to 95ºC.
In this case, drains mean:
- Dirty water from the toilet.
- Waste liquid from the shower stall and sink.
- Chemical compositions with a pH level in the range of 2-12.
The following parts are used for internal sewerage:
- couplings (with stop, full bore for repair);
- reduction;
- audits with a 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.
Practically in the same way looks like a set of fittings for an external sewer system, although there are certain differences.
The following parts are used for external sewerage:
- 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-bell tees (the latter option with an angle of 90º);
- single-plane crosses (90º);
- , mounted horizontally with a slope of 2 cm per 1 m of length;
- two-arm siphons.
Average prices for connecting elements for an external system:
| Item type | Diameter, mm | Angle, º | Price, rub. |
| Retraction | 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 | |
| Audit | 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 |
Recommendations for installing sewerage from plastic pipes with your own hands
The sewer system in old buildings was primarily 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. This will eliminate unpleasant sewer odors that may enter the room.
Experts even recommend refusing to use galvanized products, whose lifespan is no more than 10 years, and giving preference to polyvinyl chloride or polypropylene products. The shelf life of polymer elements is 30-50 years.
To dismantle the old sewer, you will need the following tools:
- large screwdrivers to remove small parts from the system;
- grinders with a metal disc;
- plastic film to cover the pipe opening at the cut;
- nail puller and chisel;
- personal protective equipment (goggles, gloves, apron);
- hammer and perforator;
- scrap and grinding machine.
How to make the transition from a cast iron pipe to a plastic sewer: dismantling the old system
First you need to indicate the necessary indents. The first mark is placed at a distance of 10 cm from the ceiling level, and the second mark is placed at a distance of 80 cm from the tee. In the marked areas, you need to make cuts using a grinder, with a depth of half the cross-section of the pipe. Place a chisel on the top cut and hit it with a hammer.
A similar procedure must be performed from below. The hammer must be struck with force to crack the cast iron pipe so that the middle section can be removed.
The section of pipe coming from the ceiling must be covered with plastic film.
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 to loosen the fixation zones. Once this is done, you can remove the . In some cases, you cannot do without using a hammer drill. It allows you to remove the cement that holds the fasteners in place.
You can use a screwdriver or chisel to chip away the cement. After this, the tee is removed. If this procedure fails, you can use a grinder equipped with a disk designed to work with metal surfaces. In this case, you should step back from the socket by about 3 cm. After dismantling the connections, you should thoroughly clean the areas where they are located from dirt, and then treat the surface with a grinding machine.
Useful advice! Before starting work, you must notify your neighbors, since you cannot use the toilet or bathroom while the pipeline is being replaced. Otherwise, water from the upper floors will flow into the room and flood the neighbors below. For the same reason, all work must be carried out as quickly as possible.
Instructions for installing sewerage from plastic pipes
To perform installation work You will need the following tools and materials:
- pipes with a cross-sectional size of 110 mm;
- outlet tee;
- rubber cuffs designed to seal and secure the fasteners between the PVC pipe and scraps of the cast iron system;
- a pipe providing a transition from a cast iron pipe to a plastic one and vice versa;
- pipe fastenings;
- soap, which will be used as a lubricant to facilitate installation of fasteners;
- vertical building level.
The process of installing plastic pipes is carried out in a similar way, only in reverse order. Into slices cast iron pipes you need to insert rubber sealing cuffs. The adapter is installed from above, the tee must be installed from below. The fixation of all elements must be as tight as possible to ensure the tightness of the sewer system. If the tee moves freely in the connection, it can be sealed using linen tape or silicone-based sealant.
Each developer in the process of constructing a cottage or country house forced to solve the problem associated with the choice of materials for equipping the sewer system. A high-quality and reliable pipeline is necessary even in urban apartments, and even more so in detached buildings. As the practice and experience of many specialists in the construction and repair industry shows, PVC sewer pipes for internal sewerage are the best option today.
Installation of pressure and non-pressure PVC pipes is not particularly difficult, since it involves the use of socket technology as a connection. If we compare the parameters of polybutylene, polyethylene and even metal pipelines, then products made from polyvinyl chloride are ahead of their competitors in all respects.
PVC pipes
Today, there are several types of pipes on the pipeline technology market, differing in characteristics and methods of application. Depending on the place of use, they can be external or intended for installation in an internal sewerage system.
The external ones are different large size and diameter. For their production, plastic with high strength characteristics is used. Pipes for outdoor installation are available in orange.
Internal pipes are used to drain wastewater in a private house or apartment. Externally they can be distinguished by gray color plastic.
Environmental conditions and fluid parameters also influence the choice plumbing pipes PVC for sewerage. Depending on these parameters, they are divided into the following types:
- Gravity - used for drainage of wastewater without pumping pressure (by gravity).
- Pressure - used in conditions where it is impossible to do without creating additional pressure.
- Corrugated - has increased flexibility, which allows installation in problem areas.
- PVC-U pipe - the symbol “H” at the beginning of the marking indicates unplasticized polyvinyl chloride. This material is resistant to aggressive environments due to its increased strength, rigidity and density. uPVC is produced by continuous extrusion. Please note that the material is harmless to environment and man. Products made from it have a wide range of applications, ranging from supplying clean water to working with harmful acids.
GOST sets the dimensions of sewer pipes in the range from 50 to 110 mm. In addition, according to GOST, PVC pipe products must meet a number of requirements, including the following:
- availability of the necessary markings;
- tests for various operational parameters, including strength;
- correct packaging and transportation;
- connections of sewer mains must be made using socket technology;
- If it is necessary to branch or rotate the system, appropriate fittings must be used.
Specifications
PVC pipes can be marked with the letters PVC. The length of commercially available products can reach 6 m. Moreover, they are easily cut to any required size and can withstand pressure up to 16 atm.
In the pipeline standard apartment the average pressure is 4 atm. In the case of water hammer, this figure can increase to 12 atm. For wiring throughout the apartment, it is enough to use a pipeline marked PN 6. However, when connecting to the riser, you will have to use a pressure reducer.
The marking indicates the outer diameter as well as the wall thickness. For example, waste sewer PVC 110 mm have a wall thickness of 3 or 3.2 mm. It must be remembered that pipes with the same diameter can have different thicknesses. This means that their nominal pressure will be different.
Installation of internal sewerage using PVC can be carried out at temperatures of -5...+90°C. In this case, the maximum operating ambient temperature should not exceed +50°C. It is advisable that the temperature hot water did not exceed +60°C. Possible short-term excess this condition, otherwise PVC loses its strength. In addition, PVC is a material resistant to mechanical stress.
Advantages and Disadvantages
Properties PVC material determined its high demand for the construction of sewer systems. The main advantages of PVC pipes in comparison with analogues:
- low cost of the product;
- ease of installation, subsequent repair and disassembly;
- wide variety of species;
- not susceptible to aggressive environments, high corrosion resistance;
- ability to withstand high pressure;
- resistance to mechanical stress;
- light weight;
- long service life;
- structural rigidity;
- high resistance to linear expansion.
The disadvantages of PVC pipelines include the above-described limited temperature regime, as well as the fragility of the material. In addition, reactions with organic solvents must not be allowed.
Application of PVC pipes
The scope of application of plastic inner pipes depends on their diameter. For example, sewer pipes with a diameter of 75 mm are used to equip a bathroom. They can be connected to a shower stall, washbasin, bidet and other plumbing items.
Their peculiarity is their smooth inner walls, which prevent the formation of silt deposits.
It is important to understand that the correct ratio of pipe thickness and diameter guarantees maximum throughput.
For the installation of a sewer network transporting domestic wastewater, sockets with a diameter of 50 mm are used. They are installed when connected to the drains of plumbing fixtures. They are flexible, lightweight and chemical resistant.
To connect the toilet to sewer system use a pipe with a diameter of 100 mm. It has the same properties as the previous bells. In some cases, a product with a diameter of 110 mm is required for connection.
Gray sewer pipe 110x3000 is more used for connecting to an external sewer system and a septic tank for a private home. It is resistant to aggressive soil, is not afraid of corrosion and temperature changes. It has high durability and can withstand increased pressure. If the temperature is maintained at up to 40°C, the service life of the product can reach 50 years.
Using fittings, you can simultaneously join several pipes, thereby creating the necessary branching of the internal sewer system.
This section of the Delovaya Truba catalog contains information about equipment for removing water and other liquids from premises. The proposed pipes for internal sewage allow the movement of substances having a temperature from 0 to +45 ° C. Please refer to the chemical resistance chart to determine system usage limits based on the type of substances removed.
Price list for PVC internal sewerage systems
 | Dn, mm | E, mm | Pipe length, mm | Price per piece, rub., including VAT* | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 | 1,8 | 500 | 38,00 | ||||||||||||||||||||||||||||||||||||||
| 50 | 1,8 | 1000 | 68,00 | ||||||||||||||||||||||||||||||||||||||
| 50 | 1,8 | 1500 | 100,00 | ||||||||||||||||||||||||||||||||||||||
| 50 | 1,8 | 2000 | 122,00 | ||||||||||||||||||||||||||||||||||||||
| 50 | 1,8 | 3000 | 180,00 | ||||||||||||||||||||||||||||||||||||||
| 50 | 3,2 | 500 | 62,00 | ||||||||||||||||||||||||||||||||||||||
| 50 | 3,2 | 1000 | 111,00 | ||||||||||||||||||||||||||||||||||||||
| 50 | 3,2 | 1500 | 160,00 | ||||||||||||||||||||||||||||||||||||||
| 50 | 3,2 | 2000 | 201,00 | ||||||||||||||||||||||||||||||||||||||
| 50 | 3,2 | 3000 | 308,00 | ||||||||||||||||||||||||||||||||||||||
| 110 | 2,2 | 500 | 86,00 | ||||||||||||||||||||||||||||||||||||||
| 110 | 2,2 | 1000 | 165,00 | ||||||||||||||||||||||||||||||||||||||
| 110 | 2,2 | 1500 | 244,00 | ||||||||||||||||||||||||||||||||||||||
| 110 | 2,2 | 2000 | 306,00 | ||||||||||||||||||||||||||||||||||||||
| 110 | 2,2 | 3000 | 452,00 | ||||||||||||||||||||||||||||||||||||||
| 110 | 3,2 | 500 | 110,00 | ||||||||||||||||||||||||||||||||||||||
| 110 | 3,2 | 1000 | 209,00 | ||||||||||||||||||||||||||||||||||||||
| 110 | 3,2 | 1500 | 300,00 | ||||||||||||||||||||||||||||||||||||||
| 110 | 3,2 | 2000 | 391,00 | ||||||||||||||||||||||||||||||||||||||
| 110 | 3,2 | 3000 | 583,00 | ||||||||||||||||||||||||||||||||||||||
| Tee | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Name | Price per piece, rub., including VAT | |||||||||||||||||
| 50*50*45 | 65,00 | ||||||||||||||||||
| 50*50*87 | 64,00 | ||||||||||||||||||
| 110*50*45 | 121,00 | ||||||||||||||||||
| 110*50*87 | 115,00 | ||||||||||||||||||
| 110*110*45 | 197,00 | ||||||||||||||||||
| 110*110*87 | 174,00 | ||||||||||||||||||
| Retraction | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Name | Price per piece, rub., including VAT | |||||||||||||||||
| 50*15 | 61,00 | ||||||||||||||||||
| 50*30 | 60,00 | ||||||||||||||||||
| 50*45 | 30,00 | ||||||||||||||||||
| 50*87 | 35,00 | ||||||||||||||||||
| 110*15 | 120,00 | ||||||||||||||||||
| 110*30 | 118,00 | ||||||||||||||||||
| 110*45 | 92,00 | ||||||||||||||||||
| 110*87 | 115,00 | ||||||||||||||||||
| Audit | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Name | Price per piece, rub., including VAT | |||||||||||||||||
| 50 | 125,00 | ||||||||||||||||||
| 110 | 263,00 | ||||||||||||||||||
| Plug for socket | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Name | Price per piece, rub., including VAT | ||||||||||||||||||
| 50 | 25,00 | ||||||||||||||||||
| 110 | 58,00 | ||||||||||||||||||
| Crosspiece single-plane PP | |||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Name | Price per piece, rub., including VAT | |||||||||||||||||||||||||||||||||||||||
| 110*50*50*45 | - | ||||||||||||||||||||||||||||||||||||||||
| 110*50*50*87 | 191,00 | ||||||||||||||||||||||||||||||||||||||||
| 110*110*110*45 | 210,00 | ||||||||||||||||||||||||||||||||||||||||
| 110*110*110*87 | 210,00 | ||||||||||||||||||||||||||||||||||||||||
Specifications:
- Name: PVC sewer pipe.
- Description: designed to collect and drain contaminated wastewater from the building, as well as rainwater into the external sewer network.
- Interstate standard: TU 6-19-307-86 as amended. 1-7.
- Color: gray (shades are not regulated).
- Manufacturer: JSC "Hemkor".
- Diameter: 50, 110 mm.
- Length: 345, 500,1000, 1500, 2000,3000 mm.
We offer to buy pipes for internal sewerage in bulk; they can be used both in residential, industrial and administrative buildings. The company's specialists provide qualified advice on all issues that arise. Delivery of the order is provided.
Light weight, ease of installation, high melting point are the main criteria that PVC sewer pipes for domestic sewage meet.
Pros and cons
Among the positive characteristics are:
- low price;
- easy installation using the socket method without using special devices, which allows you to reduce the cost of installation work and simplify repair and dismantling procedures;
- a wide range of connecting products that simplify the design of complex systems;
- the absence of corrosive deposits, determined by resistance to aggressive influences 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;
- light weight (average weight linear meter pipe is close to 2 kg, based on the parameters);
- internal voltage is 6 - 16 amps, determined by the thickness of the material used, which is the main criterion in selection.
The main disadvantage is the temperature limitation, varying in the range of +60°C...-15°C.
Features of choice
Main parameter PVC selection The wall thickness of the pipes is protruding, this is explained by the traditional use of free-flow systems, which eliminates the need to select internal pressure. To achieve strong technical characteristics of the walls of products, it is necessary to determine the volume of liquid media and the level of mechanical influence from the outside. Based on these considerations, pipes are selected according to 2 parameters:
- internal cross-section provided with the prescribed number of drains;
- wall thickness to achieve a given limit of mechanical strength.
Technical Parameters
The choice of PVC pipes made in a gray shade determines a number of characteristic features:
- smooth surface;
- bell 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 rigidity conditions; 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 pipes, markings on outside 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 a ring stiffness of up to 8 kN per m2.
Selection of designs based on working environment parameters:
- Non-pressure products are designed to work with working environments where liquid is transported by gravity, its speed reaches up to 8 m/s.
- Pressure products are used 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, facilitating the creation of a pipeline in difficult-to-reach areas without the use of additional devices.
For working with acidic compounds, oils, petroleum products or other chemical compounds products from the uPVC series are suitable.
Pressure systems
The use of pressure sewerage is relevant in difficult cases, its increased cost is explained by the use of additional devices:
- internal installation fecal pumps;
- near the house they create prefabricated collectors with submersible pumping systems forced type.
To save resources, it is possible to replace 11 cm pipes with similar structures measuring 5 cm. The pipes are buried to a small height, which is explained by the absence of the need to maintain 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.
Gravity systems
They are produced in the form of measured lengths of 1-6 m. Household PVC structures are 50 and 110 mm. The production of industrial systems developed using co-extrusion technology (multilayer extrusion) is carried out in sections 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 structure, internal PVC pipes are divided into socket pipes and products connected through a coupling. Bell-shaped structures are represented by measured segments with standard parameters, and a thickening (socket) 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
For large quantities household appliances and furniture unhindered installation of pipes in separate areas impossible.
By creating a system exclusively from inelastic structures, there is a risk of wasting free space. Indoor corrugated pipes are usually installed under the sink.
Product Features:
- Small cross section. To ensure the normal functioning of the system indoors, large products are not required.
- The designs are available in white or gray. The absence of dyes in raw materials helps reduce their cost.
- In some areas of the internal sewerage, installation of heat-resistant corrugated pipes is required. They are used for direct connection of washing or dishwashing equipment, ensuring the passage of hot sewage, which means resistance to temperature changes 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 they make do with plumbing glue or sealant.
uPVC pipes
For internal laying of networks, uPVC structures are used that meet the following parameters:
- 2.5, 4, 5 and 11 cm – for wiring devices;
- 11…15 cm – for arranging risers.
The pipes are supplied in lengths from 30 to 200 cm.
Selection criteria:
- low weight, helping to reduce costs by eliminating the need for heavy equipment and installation complexity;
- PVC-U structures resist corrosion and are highly resistant 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 °C);
- release of toxic elements during melting;
- exposure to rodents.
Manufacturing technology of PVC products
PVC pipes are developed using extrusion technology - squeezing out heated polymer, which is converted into a hard crust after hardening. Modern manufacturers use 2 types of polymer extrusion:
- single-layer, used to create monolithic pipeline systems;
- multilayer, used for structures with complex profiles (corrugated and reinforced systems).
The latter is designed to push through several layers of polymer that stick together immediately after cooling. This process helps improve quality characteristics pipeline systems.
The development of PVC pipes is made from thermoplastic that has undergone heat treatment to maintain its shape. The main components of PVC are ethylene and chlorine; additional additives improve the characteristics of PVC products.
There are 2 types of raw materials for the development of PVC pipes:
- PVC composition;
- 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 composition structure, increased heat capacity and a sufficient level of longitudinal rigidity. They are fixed to the walls to eliminate mechanical load and ensure a stable gravity slope. PVC structures are aesthetically pleasing and do not require additional masking. The internal coating has a smooth surface; the use of high-pressure cleaning technology allows you to remove blockages and restore the original condition, which determines the long service life of the system.
The sewer system made of PVC pipes is joined using socket technology with internal rubberized seals in the form of rings. The pipes expand from hot drains and are connected to compensation holes. For this purpose, special marks are provided on the smooth ends of pipes and fittings, which act as a guide when connecting pipes. Compensators on risers are placed between floors and facilitate the implementation of similar tasks on vertical highways.
Step-by-step instructions:
- The elements of the system are adjusted to each other, checking the compliance of the slope angle.
- Markings are carried out to eliminate further confusion in the placement of components.
- Connect the elements of the system.
- To impart airtight properties, all joining areas are connected with a special glue (for a more durable fixation, all contacting elements are provided with a rough coating).
- After covering with an adhesive layer, put on the fitting.
- To create branches on pipelines, tees or other distributors are used. Connecting fittings to pipes is similar to joining pipes to each other.
- After completion of work, it is necessary to check the level of tightness of the system within 60 minutes. If there are no leaks, the pipe installation was carried out to a high standard.
Fittings for PVC pipes
Properly selected fittings are used for hermetically sealed joining of pipes, eliminating the formation of unforeseen emergency situations. The main list of connecting elements includes:
- knee;
- “Y” and “U” shaped fittings;
- couplings;
- bushings;
- inspection hatches.
Fittings are used only when laying the pipeline horizontally. Rotating areas form an accumulation of debris, which requires the installation of an inspection. There are a number of restrictions when joining products. The pipeline connection is made at an angle of 45, 67, 87 or 90 degrees.
For corner connection pipeline systems use an additional type of fittings - angles. They provide a change in flow at an angle of 90 or 45 degrees. But if necessary, it is possible to purchase corners of 30 and 60 degrees.
To connect pipes with different cross-sections, transitions are used to ensure the connection of a product with a cross-section of 50 mm to 110 mm pipes.
Approximate prices
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