PVC sewer pipes for internal sewerage dimensions. Sizes and types of PVC sewer pipes and adapters for their connection. Types of sewer PVC pipes and adapters

04.11.2019

PVC pipes intended for internal sewerage are gray in color, have a smooth texture and are equipped with a socket for a connecting ring. Such pipes are widely used for the removal of domestic and storm drains. According to GOST, the operating temperature is not more than 45 degrees, but short-term exposure to a higher temperature (up to 70 degrees) is also acceptable.

The main advantages of PVC pipes over other types of sewage:

Low susceptibility to chemical attack;
Resistance to abrasive action of solid particles;
High rates of rigidity;
High service life;
Relative cheapness of the material.
The light weight greatly facilitates transportation and installation.

Of the shortcomings, it is worth noting the following:

Gray PVC pipe characterized by high brittleness, especially when low temperatures. In such conditions, their transportation and installation is complicated;
Low resistance to organic solvents. Due to their impact, the destruction of the pipeline or the appearance of plaque is possible.

Another distinguishing characteristic of gray PVC pipe is thinner walls than a red PVC pipe of the same diameter. Therefore, with their use it is laid precisely internal sewerage where there is no high load on the pipes.

Features of the installation of PVC pipes for internal sewage

The laying of PVC pipes in the organization of internal sewage is carried out taking into account some features:

The distance between individual fasteners (e.g. clamps) must not exceed ten pipe diameters. Otherwise, deflections will appear, in which, with small volumes of drains, garbage will constantly accumulate;
In the horizontal plane, it is better to connect pipes with two corners of 45 degrees, and not one at 90. This way you will reduce the number of blockages;
On horizontal sections, a slope of at least 2 cm per linear meter must be observed;
Rubber seals inside the sockets ensure the tightness of the connections, but they can be further strengthened by applying a thin layer of sealant during installation. This will prevent leaks if the rubber dries out;
There should be no bends and stresses in the pipe - this can lead to cracks over time;
PVC should not be laid where long-term exposure is possible hot water. These sections are best made of polypropylene pipes.

For laying internal sewage, PVC pipes are quite versatile. If all the features of the material are taken into account during installation, the PVC sewer system will last a very long time without any repair and maintenance - some manufacturers give a guarantee of up to 50 years on their PVC pipes.

Today, it is common practice in the reconstruction and construction of houses to equip them with all life support systems, including internal sewage. The presence in the house of the necessary engineering systems makes it possible to use modern household and plumbing fixtures, which greatly facilitate the life of homeowners and make the living conditions as comfortable as possible.

Such equipment, however, as a rule, becomes a source of domestic fecal water. To drain them, an internal sewage system is created and.

Internal sewerage is a network of pipelines and all kinds of branches. On the modern market there are pipes for internal sewerage made of asbestos and concrete, made of polymers, metal, and ceramics.

The rapid development of technology has made it possible to create comfortable and perfect materials used in production. They are low priced and have great features.

Polyvinyl chloride (PVC) material is widely used. Unique qualities with a minimum of shortcomings make it possible to use it even in the food industry, since it is completely safe for human health.

Pipes for internal sewage PVC are designed for drains, the temperature of which reaches 60 degrees Celsius. For a short time even temperatures up to 100 degrees are allowed. The service life of these pipes is at least 40-50 years.

Internal PVC sewerage has a number of advantages. One of the main ones is its durability and corrosion resistance. It is not susceptible not only to alkalis and mineral acids, but also to aqueous solutions of fats, salts, oils, alcohols and other chemical compounds.

Inside the PVC pipe is smooth, so it does not overgrow with bacterial and mineral deposits. If there are solid inclusions in the drains, for example, sand, they do not leave a mark on the surface of the pipe.

It consists of adapters that connect the pipes (elbow, coupling, plugs, fasteners, cross) and the pipe itself. Such an internal sewage system is suitable for organizing drains with cold and hot water. Polypropylene tubes are quite resistant and well suited for aggressive environments. No plaque is formed inside, they do not lend themselves to silting, they practically do not make noise.

Advantages of PP pipes for domestic sewage

Key benefits of our inner tubes:

Easy installation. Special tools and knowledge are not required. Everything is intuitively simple, the assembly is carried out on an equipped rubber ring. It also ensures the tightness of the entire system.
Excellent permeability. The inner wall is smooth - there are no conditions for the formation of blockages.
Organization sewer systems any complexity. A variety of sizes, diameters, low weight give all the possibilities for construction.
Flexibility. Ability to integrate with other sewer systems.

For the greatest functionality of the sewer, all pipes should be laid with a slope of 15-20 degrees. If it is impossible to provide such a slope, then it is worth considering installing a pumping system.

Our specialists are true experts in plastic sewer. They will answer all your questions and help you place an order.

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 production internal systems sewers 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 stiffness 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 service life (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 to the desired size in a 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.

Light weight, ease of installation, high melting point are the main criteria that PVC sewer pipes for domestic sewage meet.

Advantages and disadvantages

Among the positive characteristics are:

low price;
easy installation by socket method without the use of special tools, which reduces the cost installation work and simplify repair and dismantling procedures;
a wide range of docking products that simplify the design of complex systems;

absence of corrosive deposits determined by resistance to aggressive effects of internal environments and smoothness inner 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 a gray tint, determines 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

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

internal installation of fecal pumps;
near the house, prefabricated collectors with forced-type submersible pumping systems are created.

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 structures are 50 and 110 mm. Release industrial systems, developed using coextrusion technology (multilayer extrusion) is produced 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 regime 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 provide normal functioning indoor systems large items 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 washing or dishwasher equipment, providing 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 construction 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:

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

The latter is designed for punching through several layers of polymer, sticking together immediately after cooling. This process contributes to the improvement of the quality characteristics of 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 the characteristics of PVC 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 application 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. The inner coating has a smooth surface, the use of high-pressure cleaning technology allows you to eliminate 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:

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

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).
After coating 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 connecting pipes to each other.

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, which excludes 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 pipeline systems, an additional type of fitting is used - 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.

For connecting pipes with different cross section transitions are used that provide connection to 110 mm pipes of a product with a cross section of 50 mm.