Options for connecting sewer plastic pipes - advantages and disadvantages of methods. How to dock sewer pipes Connecting pipes on an internal sewer

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Communications from polyvinylchloride differ in high operational characteristics. However, if the connection technology is violated sewer pipes the service life of the pipeline is reduced, it ceases to fulfill its main function for waste disposal. As a result, leaks and blockages occur.

Communications can be deformed in the areas of connection of pipeline elements. To avoid unpleasant consequences, before starting installation, it is necessary to study all available methods of fastening fittings and communication sections. Consider the advantages and disadvantages of each option.

Sewer pipe connection

General rules

If the question is being decided how to connect PVC sewer pipes to each other, you need to study the installation recommendations. The rules are developed taking into account the intricacies of the operation of communications. They are common for pipes from different materials:

1. When installing an internal sewage system, products with a socket are installed so that the broadening at one end is directed in the direction opposite to the flow of water. This is done to avoid clogging.
2. When laying the pipeline, a slight slope is provided. The value of this parameter depends on the standard size of communications. For example, for products with a diameter of 50 mm, a slope of 0.035 is provided. How larger size communications, the less bias is made. So, for pipes with a diameter of 100 and 150 mm, the value of this parameter will decrease, respectively, to 0.02, 0.008.
3. Fittings are used to connect pipeline sections. Thanks to them, it becomes possible to change the direction of communications, make a tilt or turn. If polyvinyl chloride pipes are selected, it is forbidden to do a tight installation with bends. When heated, this will lead to deformation of the products.
4. If you need to make a turn, use oblique tees, half-bends. Outlet elements in these fittings are located at an angle of 30-45°, which eliminates the formation of blockages, overflow and deformation of the pipe during salvo discharge. Cleaning of communications in these areas is also carried out without unnecessary difficulties. This is due to the fact that when introduced into the pipe, the sewer cable will move only in the direction of the flow of effluents.
5. In areas where different fittings are installed, clamps are used. They increase the reliability of fastening of connecting elements in places where the load on communications is increased.
6. When laying a horizontal pipeline, which is characterized by a large length, additional fastening elements are used: clamps, hangers, supports. They are installed in increments equal to 8-10 communication diameters. If this is not done, the pipeline will sag shortly after the start of operation. In this area, the likelihood of blockages will increase.
7. When installing a vertically oriented pipeline, additional fastening elements should also be used. In this case, only clamps are used exclusively. It is important to ensure reliable fixation, so the fasteners must cover the pipe along the entire circumference. Moreover, it is necessary to install clamps on the section of the socket connection. The step is not followed in this case.
8. If it is necessary to connect pipeline sections made of different materials, such as PVC and cast iron, differences in strength and ring stiffness should be taken into account. For this, special fittings are used. It is forbidden to perform installation according to the embossing method.
9. If the room is characterized by a complex configuration or it is not possible to lay a straight pipeline, it must be remembered that the number of turns should be minimal, especially if a rectangular elbow is used. This will increase the likelihood of blockages, leading to the destruction of the pipeline.

To avoid mistakes, you can preview a video about the sewer pipe connection diagram.

How to join sewer pipes?

All communication installation methods available today are conditionally divided into two groups:

• detachable;
• one-piece.

In the first case, the dismantling of the pipeline is possible. To connect sections of communications, use couplings and flanges. Additional elements must match the pipes in size. The outer diameter must be taken into account. The sleeve is put on the parts of the products, the edges of which are cut at an angle of 90°. The center of this element must coincide with the junction line of communications. In the flange mounting method, bolt fastening is used.

It is possible to connect sewer pipes in an integral way. In this case, the following options for mounting pipeline sections are used:

• socket connection;
• welding, use special equipment (soldering iron for working with plastic);
• adhesive connection;
• installation of fittings.

The first option does not require additional elements. When installing plastic products using this technology, only a rubber gasket is used. Additionally, the joint can be treated with silicone sealant.

If a welding method has been chosen, in this case, with the help of special equipment, the heated ends are pressed against each other. This option can be implemented by butt-joining products and by means of an electrofusion coupling. When heated to extreme temperatures, polyvinyl chloride loses its properties, softens, and becomes plastic.

If at this moment a connection is made, the end sections of the communications will be securely fixed, since they are soldered. When the pipeline cools down, it will become solid. It will not be possible to dismantle it without damaging the pipe.

With glue

The method is based on the mutual penetration of the polymer at the molecular level. Adhesive bonding of plastic sewer pipes requires the use of a special adhesive. When applied, it changes the structure of polyvinyl chloride, which allows you to securely connect the elements of the pipeline. Dismantling in this area will not work, you will have to cut communications. Installation instructions:

1. The end sections are cleaned: burrs are removed, polished. In this case, the rule applies: the smoother the edges, the better the pipes fit together, which means that a sufficiently strong joint will be obtained.
2. To increase the reliability of the connection, the pipes are cleaned of contaminants. If dust or larger fractions remain on the surface, the quality of adhesion will deteriorate. As a result, leaks may occur after a certain period of operation.
3. Prepared communications need to be degreased. In this case, the areas on which the adhesive will be applied are treated with a solvent.
4. At the last stage, the connection of products is performed. After applying the glue, the ends are pressed tightly against each other. After some time, the composition dries out, a silicone sealant is applied to the seam joint.

This technology is often used when installing a sewer pipe using the socket method. It must be remembered that the adhesive used to install PVC communications contains volatile substances. After being applied to the pipe surface, it rapidly loses its properties, so it is necessary to install pipeline sections as soon as possible. This takes 1.5 minutes.

With fittings

It is not always advisable to purchase special equipment (a soldering iron for connecting PVC products), especially if the pipeline is being installed internally in an apartment or a private house. The number of seams is small, which means that you can use a simpler method - sewer fittings. Connecting elements are presented in two types:

• cast;
• compression.

There are a large number of versions that differ in configuration: cross, tee, branch, straight and adapter sleeve, revision. For connection with fittings, only rubber compressor. It is laid inside the bell. When the pipes are connected, PVC is treated with a sealant along the seam.

Checking the system before starting operation

The start-up is carried out shortly after the installation of the elements of the drainage pipeline, the PVC compound needs time to dry completely, set if used adhesive composition, sealant. When using a detachable method or welding technology, the control of the system operation according to the sewer passage scheme is carried out immediately after the installation is completed.

The pipeline is checked for leaks, the appearance of bends with an increase in the temperature of the effluents. For this purpose, water is supplied - you need to turn the valve on the water riser. As the drains move, they monitor the state of communications. For greater clarity, the joints of the pipes are covered paper napkins, then it will be possible to notice the appearance of even a slight leak. To make sure that the pipeline is in a suitable condition for operation, it is necessary to observe the movement of effluents over a period of time.

The pipes are essential element sewerage system, without which its normal functioning is impossible. Exist different types pipes for sewerage, so when planning the construction of a drainage system, it is important to do right choice. It is necessary to make the right choice of pipes according to the material, choose their sizes, cross-section and diameter. There is no universal solution, the choice of types of pipes for sewerage depends on the specific project.

In the recent past, the choice of pipes for the sewer system was limited.

I had to choose between steel and cast iron products. Today, new types of sewer pipes and connections have appeared, so making the right choice has become much more difficult. Let's figure out what types of plumbing pipes are, what are their sizes and types of profile.

The choice of diameter depends on the purpose of the pipe.

So, when building internal system sewers in a house or apartment, as a drain from a bathtub or sink, pipe sizes of 50 mm are chosen, but for a riser a larger pipe is needed, as a rule, a product with a diameter of 110 mm is chosen, since a smaller pipe will not cope with the load.

For main pipelines, pipes of large diameters are selected, their size depends on the planned capacity of the sewer branch.

As for the section of pipes, in most cases, it is preferable to choose round pipes. The use of a profile pipe is rather an exception, but there are types profile pipes used for sewer systems.

Pipe material

Today, for the installation of sewage systems, pipes from:

• metal - steel and cast iron;
• ceramics and asbestos cement;
• plastic - PVC, polyethylene, polypropylene;
• metal-plastic.

Steel pipes

Pipes made of steel were widely used for the installation of water supply and heating systems.

But for sewage they are used less often, since this material is highly susceptible to corrosion and does not last long. The advantages of this type of pipe include:

• A wide range of.

  There are different types of steel pipes, they have different sizes and wall thicknesses. In addition, various grades of steel are used for the production of pipes, so it is almost always possible to choose a pipe for certain operating conditions.

• Plasticity and high strength.

• Not big weight This circumstance greatly facilitates installation.

On the market you can find pipes with zinc coating and not galvanized, with threaded connections and without carving.

In addition, we can highlight:

• Seamless pipes. These products are more durable and reliable, but also more expensive.
• Pipes are welded.

  Connection of plastic sewer pipes - we make the system airtight

  This option is used most often, since the products have an affordable cost. And their reliability and quality largely depends on the grade of steel that is used for the manufacture of pipes.

Cast iron pipes

Enumerating species metal pipes used for the installation of sewerage systems, one cannot fail to mention cast iron products.

Since it was cast-iron pipes for decades that were the main material for assembling sewer networks. Cast iron is used to assemble connections to plumbing fixtures, sewer risers and external highways. The main advantages of the material are:

• Durability and long service life;
• Corrosion resistance.

The disadvantages of the material include:

• Large weight, which makes it difficult to transport the material and its installation.
• Relatively high brittleness.

  Pipes made of cast iron do not tolerate shock loads.

• The impossibility of using for laying an external pipeline in saline soils, since the soil brine quickly destroys the material.
• Rough inner surface, due to which the pipes become clogged faster.

Asbestos cement pipes

For the production of such pipes, a mixture of asbestos fiber with Portland cement is used.

Advantages of these products:

• Resistance to corrosion processes.
• Ease of machining, which greatly facilitates installation.
• Long service life.
• Smoothness of the inner surface.
• Asbestos cement is a dielectric, so the material is not subject to electrochemical corrosion.

Asbestos-cement pipes have disadvantages, these are, first of all:

• Brittleness of the material.

  When working with pipes made of asbestos cement, you have to be extremely careful and accurate.

• Under the action of the soil, the outer surface of the pipes is quickly destroyed, so protective measures must be taken.

Ceramic pipes

Ceramic pipes in their properties resemble cast iron, however, they are lighter and one hundred percent resistant to corrosion.

The undoubted advantage of ceramic pipes is their resistance to high temperatures and the effects of aggressive environments - acids and alkalis.

However, the material is fragile, so you need to carefully handle the pipes during loading, transportation and during installation.

Besides, mechanical restoration pipes (cutting) is difficult, when you try to cut the pipe, it can simply split.

Pipes made of polymeric materials

Today it is widely used different kinds plastic pipes for sewerage.

For the manufacture of such products, three types of polymers are used:

• PVC.
• Polypropylene.
• Polyethylene.

PVC pipes are designed for gravity sewerage systems. The material is durable, able to withstand high loads. PVC pipes are widely used for the installation of outdoor systems, as they are inexpensive, able to withstand aggressive environments, and resistant to ultraviolet radiation.

But the pipes do not tolerate the effects of temperatures above 70 degrees, at very low PVC temperatures becomes brittle, so it is recommended to insulate them.

PVC pipes are not recommended for internal pipelines. The fact is that when ignited, this material emits extremely toxic phosgene gas.

Various types of polyurethane are widely used to assemble sewerage systems. propylene pipes.

These pipes have a long service life, they can be used for both gravity and pressure systems.

It is necessary to distinguish between types of propylene pipes intended for internal and external pipelines.

The first type of pipes is designed for use in the home, they are durable, but not able to withstand the effects of low temperatures and the load exerted by the soil.

For external pipelines, special types of pipes are produced - two-layer. Their inner layer is perfectly smooth, and the outer layer is corrugated, so the pipes are characterized by increased strength.

Metal-plastic pipes

For the assembly of various systems, including sewage systems, various types of metal-plastic pipes are widely used.

These pipes are plastic coated, so they are 100% corrosion resistant, chemically neutral and fairly easy to process.

At the same time, the presence of a metal core gives these products increased mechanical strength. The disadvantages of the material include their high cost.

Pipe connection parts

To connect individual sections of pipes, to create bends in the pipeline and to attach additional branches, special parts are used - fittings.

There are various types of fittings for polypropylene pipes. When assembling sewer pipelines, the following are most often used:

• Elbows are fittings for connecting horizontal and vertical branches. The knees can have different bending angles, for example, 90, 45, 22.5 degrees.
• Tees. They are produced in the form of the letters "Y" or "T".
• Crosses.

  This fitting is used to connect several branches and join pipes located in different planes.

• Revisions. This is a special type of fitting that is used to clean and maintain pipelines.
• Couplings - elements used to connect individual elements.
• Adapters. This type of connecting elements, which is used to connect pipelines different diameter.

To connect the elements when assembling a pipeline from metal-polymers, similar types of fittings for metal-plastic pipes are used.

So, there are various types of pipes that are used for the installation of sewage systems.

In private construction today, polymer and cast iron pipes are mainly used, but the use of other types of pipes is not excluded, for example, to create storm sewers or drainage systems, ceramic pipes are sometimes used.

Replacing obsolete materials with plastic

How to build a sewer system from PVC pipe

High tightness of connections with permanent connections

Hydraulic pipelines made of cast iron and PVC at the same time

Use of linen and silicone for rewinding

Due to the variety of parts in the sewer, sewer pipes can be connected in different ways.

Replacing obsolete materials with plastic

Plastic pipes are increasingly being used for water supply and cleaning Wastewater. All materials from which the components of the gas pipeline (polyvinyl chloride, polypropylene, polyethylene, polybutylene) are thermoplastic, i.e. soften at elevated temperatures and, with subsequent cooling, return to their original state (structure and physical properties thermoplastics).

New and more promising materials replace waste in the wastewater system every year.

Waste water pipes and connections belong to the past:

• Concrete pipes, which are quite heavy, are difficult to transport and assemble.

  To date, they have found a successful application for an agreement on local sewerage state houses and weekends.

• Asbestos-cement joints of sewer pipes of various diameters, characterized by increased fragility. The disadvantage is the low throughput. But asbestos-cement pipes are resistant to chemical attack, temperature changes and corrosion, are easy and affordable.
• Cast iron pipes have many advantages.

  For many years they have been a leader in the drainage system. But in this case, cast iron products have many disadvantages, first of all - a lot of weight and a tendency to fast traffic jams.

If we are talking about plastic pipelines, then, unlike their "colleagues", they do not have the above disadvantages.

This means that plastic products can work for a long time without difficulty - up to a hundred years; not subject to rust, corrosion, chemical reactions, aggressive environments; very flexible, durable, etc. These pipes can be fixed in different ways, each of which provides an excellent result.

Due to the perfectly smooth inner surface, PVC plastic constructions have high performance. Like another “plus” is their lightness, so it’s good to work with them.

Now let's talk about how to connect pipes from plastic collectors.

How to build a sewer system from PVC pipe

When installing and fixing plastic pipes, it is necessary to use special accessories (equipment) in the correct direction of the moving fluid. Thanks to their use, it is possible to design the necessary pipeline design.

For equipment involved in the installation of domestic wastewater, carry:

• clutch;
• aisles;
• aisles;
• audit;
• wrist cuffs;
• tees;
• mutton.

Plastic piping includes separate or integral parts.

The first option uses flanges or clamps, so expensive materials and special tools will not be required during the construction of the sewer system. Respectively, installation work will be cost-effective from a financial point of view.

How to insert a sewer into a tube using built-in elements? To do this, you will need adhesives, welding, special fittings, all kinds of tools. Therefore, permanent and hermetic conclusions will be made to meet the reliability of consumers.

If this requires a completely removable sewer network, it is best to choose flanges or couplings, which in turn are defined as thread and compression. With its help, assembly is carried out quickly and does not require special skills.

How to choose the right plastic hose with cast iron?

Unfortunately, in last years we stopped tightening collapsible nodes, brushless supports and collapsed.

Therefore, today vaccinated tubes are used infrequently, and then to install tubes with cross section less than 6.3 cm from washbasins, bathtubs and shower trays. What is the installation of the folding element?

First, experts pull the O-ring and lock on the pipe.

The tubular product is then installed in the socket of the coupling, and the connection is attached with an additional matrix. At the end of the handle, it is very tightly wound. The work can be considered perfect. Also read: "PVC pipe connection options that are best used."

High tightness of connections with permanent connections

How to connect water pipes based on socket technology?

Let's try to figure it out. This method applies to the simplest and most common connection method. This can be easily done at home without the skills to work.

The sequence of actions is implemented according to the scheme:

1. Clean connection points (bell, smooth end of tubular), install rubber seals.
2. Cover the smooth end of liquid soap or lubricant with silicone.
3. Connect both pipes to the station so that the game is not displayed.
4. Mark the smooth end of the tube that matches the actual depth of the joint.

Then, according to the risk, pipe products should be designed by 10mm depending on the degree of maximum penetration.

The bell must be directed against the direction of flow (also read: "What is a sewer pipe, type and characteristics of the installation").

Let's look at another way - how to connect plastic pipes to drainage water using adhesive compounds.

First you need to buy a high-quality thermoplastic adhesive in the construction section, then clean the treated surfaces from dirt, grind them and additionally apply a degreasing mixture.

Then apply to the treated adhesives, insert the ends of the tube into another and hold in this position for about two minutes.

This time will be enough for the connection to occur. But for better reliability and tightness of the connection, it is better to glue it with glue.

Another method that provides an extremely reliable connection of PVC pipes is welding their parts using special devices such as soldering irons.

Such equipment is sold in specialized stores. The rules for using the device are simple, so an unauthorized person can also perform such a procedure.

Wastewater welding pipes are the melting ends of the fused plastic pipes and at the same time tightly pressing the heated products. And in a few minutes you will have a monolithic system, completely airtight.

Hydraulic pipelines made of cast iron and PVC at the same time

In the field of housing and communal services, the replacement of old cast iron with plastic pipes is not 100% completed. Often, Zek employees use a more economical technique - connecting PVC sewer pipes with cast iron structures.

This procedure is carried out during the Oboyka purchase process of pure iron pipes and is identical for plastic products (see "How the connection is made of cast iron pipes to each other and to plastic or steel").

First, let's look at the sequence of actions when connecting cast iron pipes. First, you need to clean the ends, insert the smooth part into the socket and continue sealing the joint.

A feature of this process compared to PVC products is the compression of oils from organic fibers instead of O-rings. Also read: Types water pipes PVC for water, wastewater and heating.

Then the seams are sealed:

1. The end of the tube must be inserted into the socket and centered with stoppers made of wood or metal, which must be moved to the free space between the pipes.
2. Screw the oil cable screw into the connector and press on the fibers.

   The latter should fall to about 75% of the depth of the nest.

3. Make another section of the seal and deepen it into the bell.
4. Repeat wrapping the cable at the junction until the rope is completely at the connecting surface.

Finish the seal job by applying a cement patch to a series of compressed fibers.

Replacement cement can be sealed with silicone or bituminous mastic. The result is a very reliable link.

Do not forget to repeat the sequence of compaction measures several times.

The connection of plastic sewer pipes with castings is carried out in the same socket of the system, but this requires a special rubber converter and forced cleaning of the iron bell from dirt.

Use of linen and silicone for rewinding

You can still use water lines with mixed sewage piping (metal + thermoplastic).

The sequence of actions is as follows:

1. Install a tape wrap instead of plugging the cast iron product with plastic.
2. Connect pipes.
3. Pull the flax into the space between the pipes with a small screwdriver or narrow spatula.
4. Treat the bonding area with a polymer-cement mixture.
5. Wait 1-1.5 days until the crossing is hard.

With a small gap between products, you can replace the windings with sanitary ester silicone.

Before the hair is thoroughly dried, and as far as possible, the gap of the silicone composition can be filled using a gun design. After 4-6 hours, the sealant will dry and the sewer system will be fully usable.

Now you have the perfect sewer connection idea.

Material Orientation
Plastic pipes: a nice connection
Connection of PVC pipes for sewerage, fittings
Precautionary measures
The main characteristics of the external sewer installation
Connecting a pipe with a removable method
All types in one: shades
The most reliable way to connect

Connecting sewer pipes is a top priority when installing a sewer system.

Depending on how well technological process is carried out, the comfortable life of tenants in the house depends on it. In general, the connection of tubular products is somewhat similar to the Lego designer.

Material Orientation

Getting serious work - choosing the option of connecting a sewer pipe, it is important to know in advance what material will need to be addressed.

So far, the following products have been used in water treatment systems:

• PVC (polymer);
• cast iron;
• steel;
• concrete;
• ceramics;
• asbestos cement;
• pulsation.

The first two types of material are most commonly used, while the others are quite rare.

Corrugated pipes are in demand in the external pipelines of private buildings or as integral parts of large-scale production facilities.

Cast iron pipes are used in external sewer systems. Compared to steel, they are quite complex, so they are not suitable for domestic sewers, especially if they are installed by one person.

At the same time, cast iron pipes are not afraid of corrosion, such as steel, they have a long service life and are also found in heating systems, especially when installing elevators. Although not every person will connect complex elements in cast iron pipes. As a minus of such products is the regular fixing of waste in pipes due to uneven surfaces. In winter, during the heating season, they are more prone to clogging.

Polymer products are more practical against their background.

Plastic pipes: a nice connection

Recently, PVC products have been at the peak of popularity, replacing metal counterparts, which are technical parameters much worse than plastic.

The main feature of plastic tubing softens at elevated temperatures and returns to its original state at low temperatures(See "Plumbing connection options - advantages and disadvantages of methods").

To understand how to connect plastic sewer pipes, you should consider the positive arguments in favor of their benefits:

• anti-corrosion properties, which makes PVC products safely placed underground without additional insulation and at the same time saves a lot;
• chemical resistance to substances and aggressive environments;
• light weight of plastic pipes;
• Excellent performance due to flat inner surface;
• a life that can reach 100 years;
• Easy setup that allows you to create drainage system all kinds.

As a minus in the work of PVC pipes - limited permeability.

Although this error can be completely solved if you choose a larger tube. If you know the diameter and length of the product, you can simply lift them into the plastic sewer network. If you know theoretically how to connect two tubes of different diameters, you can proceed with practical measures.

This type of pipe is also successfully used for external sewer networks. At the same time, in cold frosts, attention should be paid to thermal insulation, for example, when buying soft insulation.

Connection of PVC pipes for sewerage, fittings

Plastic pipes are often connected to fittings.

It is a type of connector that ensures the integrity of the structure, excludes the penetration of moisture and unpleasant odors into the system. Thanks to the wide range of these products, repairs are facilitated and worn items are replaced with new ones.

Think about how to connect sewer pipes to fittings.

The latter are divided into types that differ:

• functions (intermediate or connecting equipment);
• Models (couplings, shoes, guides, extensions, etc.);
• (flat, T- and L-shaped).

Using this classification, you can easily select the appropriate pipe material and explain to the store which fittings are of interest.

When inserting the hose into the connector, be sure to install the rubber seal first.

Precautionary measures

How to connect sewer pipes, which are integral parts of a large system?

The answer to this question involves several sequential steps.

First you need:

1. Prepare a system drawing. It is important to consider items in the house or apartment where you plan to install drainage pipes, such as a shower stall, bathroom, bathroom.
2. Determine the points for connecting pipes to the central riser, and accessories are needed there.
3. Please note that the sewer pipes of the private sector are divided into two types depending on the size of the section: 110.50 mm.

   This is the last option that will be ideal solution for laying showers, bathtubs, washbasins, washing machines.

Before buying a drainage pipe, you need to calculate in advance necessary material so you don't waste money on excess plastic.

After all, these products cannot be spoiled.

The connection signal is very important for the activation signal, which is intended to connect a siphon (pipe made of sanitary device) and drainage pipes made of PVC or metal. Some experts ignore this connecting element and in vain. After all, its absence can interfere with the integrity of the system, and the solution will always leave it in the water.

Due to the durability of the drainage system, some shades should be considered:

1. Indicate the specific slope of the pipe, which is calculated taking into account the size of the reduction - no more than 2-3 cm / m of the product. This indicator is needed to quickly discharge the liquid.
2. When installing piping, run water to the center riser so that later connections do not interfere with fluid flow in the system.

If you can connect drain pipes to the initial stages, you can protect the system from potential leakage.

The main characteristics of the external sewer installation

Fittings are used when installing internal or domestic wastewater. The situation with the external system, which is located in a place near the house, is quite different. In this case, it is necessary to start the installation of water treatment wells.

If we learn how to connect with drainage pipes, it becomes clear that the external system needs products with a large diameter.

Please note that the diameter of the outer tube should be slightly larger than the size of the sewer. It is better to use material with a "reserve" than to change the entire drainage system when you want to tie new plumbing fixtures.

After completing the preparatory activities, you can start a serious business - connecting sewer pipes.

Depending on the type and connections of pipes, there are two types of connections: removable and one-piece.

Connecting a pipe with a removable method

Such connections are classified into flange and connection. For plastic pipes, it is better to use the first option.

To achieve excellent sealing, it is better to use cast iron fasteners and rubber seals in separable connections.

We will gradually analyze how to properly connect drainage pipes using flanges:

1. Cut the pipe very smoothly, no shots.
2. Put on the loose flange on the cut.
3. Insert the seal 10 cm from the cutting line.
4. Place the flange on it and connect it to the check valves.
5. Fasten with screws.

Couplings are used during repair or installation of pressure/surprise systems.

To work without problems, you need:

1. Lower the end 90° before connecting the hose.
2. Attach the ferrule to the connection point so that it is exactly in the middle of the connector.
3. Mark the position of the coupling on the pipes.
4. Make special ends of the lubrication tube and install them from the inside.
5. Insert one of the pipes into the coupling until it stops.
6. Connect the pipes without the skeleton to get one axis.
7. Push the sleeve onto the other tube onto the pre-marked label.

This separation method is very convenient for dismantling the pipeline if necessary.

When the assembly is done, great attention is paid to the O-ring.

All types in one: shades

Now we will learn how to connect sewage pipelines using the all-in-one technique.

Exist different ways, but the most common here are:

1. "Into the mouth". According to the theory, the rubber-ringed bell is connected to the same end of the tube. Before starting work, all surfaces are cleaned and degreased, and the treatment is necessarily removed from the end of the tubular pipeline.

   Before attaching to two surfaces, they are treated with silicone grease, and in case of absence - with liquid soap or detergent and then connect. In this case, the longitudinal axes of both products must necessarily coincide. The flat part is inserted into the socket, which is not deeper than the previous mark.

2. Welding: in nest or embrace.

   In accordance with the theory of the first option, moderate pressure melting: inside the socket of one tube and on the outside of the smooth end of the other. If dental welding is performed, the ends of both pipes and a common place are connected. The last method allows us to understand how to connect pipes of the same diameter.

3. Splice.

   Using this method, the ends of the binding are covered with a special adhesive. It is selected according to the pipe material.

   For example, BF-2, resins and metal epoxy adhesives, rubber and metal mortars 88H are suitable for metals and plastics.

The most reliable way to connect

The "plug-in" method is considered to be the most accessible and easy, which will also be an amateur. But this option does not guarantee high tightness, because it is only available with a rubber ring in the socket. The latter is inserted into the tubular product in the opposite direction to the direction of water flow.

Fittings are connected using O-rings. This method is used for small diameter PVC pipes and allows you to understand the connection of two threaded pipes. Compared to metal models, there is no need for pre-treatment for processing plastic parts.

The welding method requires additional knowledge and skills to operate the welding machine.

But at the same time, this method is very reliable.

Excellent adhesion will have a special adhesive. But before use, it is necessary to clean the dirt surfaces and degrease them thoroughly.

Connecting sewer pipes

Action must be taken fairly quickly.

Our recommendations will help you understand both adverse business and sewer pipes. As soon as you complete a high-quality connection, you will get rid of unpleasant queues and network shortcomings, frequent repairs and endless financial costs.

Options for connecting sewer plastic pipes - advantages and disadvantages of methods

Waste water samples
Waste water pressure
Reinforced concrete pipes
asbestos cement
become
Cast iron sewer systems
PVC
Polyethylene pipes

Considering various features location of many private houses, it is often impossible to install a gravity sewer system.

It often happens that the house is in an airplane and that the desired fountain is a little higher - of course, this option is not suitable - you need a wastewater treatment system.

About what sewer pipes are needed, and how to choose them correctly, we will talk even less.

Connecting sewer plastic pipes

It is necessary to install a slurry pump and install special sewer pipes for pressure systems.

Waste water samples

Depending on the type of wastewater transportation, there are:

1. gravity. Liquid and solid contents move through the pipes under the action of gravity with a direction at an angle. In such systems there is no excess pressure, but blocking can occur during operation.
2. pressure.

   Of course, you can move the drainage from the bottom up, of course, such a system requires the installation of a pump.

For the first method, non-conductive sewer pipes are used. There are many varieties of such products according to the material of production, as will be described a little, but also according to the type of the pipe itself - smooth and wavy.

However, the main difference between sewer pressure pipes and pressure pipes is the ability of the former to operate under high pressure conditions.

This, of course, does not mean that ordinary non-pressurized tubes cannot compromise high pressure - on the contrary, they can be quite strong and reliable, but this condition is simply not indicated in the technical specifications of these products.

Waste water pressure

However, pressure distribution pipes are specially designed for high pressure applications.

This factor is taken into account in the production of pipes (select the type of material and its thickness), as well as methods of connecting and sealing pipes for high-quality work under several atmospheres of pressure.

It is worth noting that when building a gravity drainage system, you can easily use pressure pipes, which many consumers often do. In this case, the difference between products without pressure is only a value.

At the same time, it is not possible to use ordinary pipes for the production of a sewer system.

Otherwise, if the pressure increases by several atmospheres, the tubes may burst and you will have new problems.

Consider the main types of materials from which pipes for sewerage of internal pressure are made. Also read: "Which internal sewer pipes should be chosen - types and installation modes."

Reinforced concrete pipes

This material typically produces products with a very large cross-section, which are intended for laying centralized sewer channels for residential buildings or the entire microdistrict.

These pipes are combined and bonded with cement, bitumen, melting sulfur or special resins. Often, iron-based products are used for storm drains, which are almost always used by gravity (also read: Which drainage hose is best to choose - characteristics, strengths and weaknesses).

Although the use of sewerage does not cause problems when deposition of a critical amount of precipitation or an increase in intensity, the system must be resistant to increased pressure.

It is difficult to objectively evaluate the positive and negative aspects of using reinforced concrete structures, since they have no analogues (see also "Types of reinforced concrete pipes, characteristics and uses").

However, the installation and connection of communications of this type requires the mandatory use of heavy equipment, since the weight of the entire structure is very large.

asbestos cement

Among the advantages of this material we can say low costs, resistance to aggressive environments, as well as the fact that it does not carry electricity and does not affect finer currents.

In addition, the material proved to be good at low temperatures, although waste water is extremely rarely used in such conditions.

But defects in asbestos cement can be explained by its fragility, that is, sensitivity to mechanical damage, for example, during transportation.

The optimum pressure at which such pipes can be used does not exceed 4 kg/cm2.

become

Some believe that steel sewer pipes are not only impractical, but also very short-sighted, since this material is prone to corrosion and will last a long time.

Of course, there are some possibilities that will require very high pressure sewers anyway, which will not be used for very long.

This option is justified with such rare exceptions.

However, we note that the main advantages of steel pipes are the mechanical strength of the pipe body and welds designed for high pressure.

However, among the disadvantages can be found electrical conductivity, susceptibility to oxidation and corrosion, low resistance to chemicals, a tendency to clog and reduce the clearance.

If you need a reliable and reliable sewer system, steel pipes won't work for you.

Cast iron sewer systems

This material has recently had no analogues in the construction of sewers of any type.

Cast iron pipes are very resistant to oxidation and very durable, but in the presence of modern analogues, it is advisable to use cast iron pipes only in systems with a higher mechanical load.

A reasonable use possibility may be the need to lay the pipeline down to a depth below a road with heavy traffic of heavy equipment.

In all other cases, cast iron pipes can be completely relaxed.

Sealing joints in cast iron pipes can be rolled rope or other quality waterproofing material.

One of the main advantages of cast iron is the ability to absorb noise, as well as resistance to corrosion and mechanical stress.

Important disadvantages of such material are important weight, lack of flexibility and electrical conductivity.

PVC

Currently on the market building materials Pressure pipes for PVC have begun to appear on the building materials market, but the demand for them has recently increased significantly.

The advantages of high pressure PVC pipes include low cost, low weight and the ability to quickly and easily connect with O-rings.

Disadvantages of products in this group include low noise absorption and low ductility.

Polyethylene pipes

Often, polyethylene sewer pipes are grouped into the same category as PVC products and differ in all technical specifications these materials.

Polyethylene connection pipes are no worse than PVC, but their walls are much thicker, and the material is more plastic and resistant to mechanical damage. In addition, such tubes can be bent, which gives the system the desired configuration. Also read: "Types of sewer pipes - advantages and disadvantages of the materials used."

Sewage pipes have a long service life, they are not afraid of adverse currents, they are resistant to aggressive environments and are practically not clogged. In addition, the sound absorption quality is comparable to that of cast iron products.

Finding all the important defects in polyethylene pipes is quite difficult and not necessary.

Therefore, it is possible to exclude from the list of materials that are suitable for individual pipeline pressure pumps. We hope we can make the selection process easier for you.

Sewer adapters are special parts for pipeline installation that make it possible to vary the direction, diameter and materials of the communication system. The presence of sewer adapters greatly simplifies the partial replacement, installation and repair of sewers.

Modern sewer communications in the vast majority of cases are mounted from polymer pipes. Depending on the layout, the sewerage system has a wiring for the building, which is connected to a common drain and brought out.

The pipeline configuration has many straight sections that are interconnected in complex systems with turns, bends, tees, crosses, plugs and revisions.

When assembling the pipeline, sewer adapters from polymer materials. They can be either removable or soldered.

The buildings of the old construction are equipped with sewer pipelines made of cast iron, less often of steel. For repair, partial replacement or insertion of a separate apartment with plastic sewer it is required to combine pipes made of metal alloys with pipes or fittings made of polymeric materials into one system.

Here, adapters also come to the rescue, which are made with special different ends, and allow you to reliably connect dissimilar communications. Plumbing sewer adapters are designed for:

• connections of straight sections of the pipeline with different diameters;
• connection of pipeline sections from different materials (the diameter can be either the same or different from each other);
• creating the necessary configuration sewer section(turns, bypass, wiring).

Note! Before buying sewer adapters, you should know not only the required material and diameter, but also the type of thread - external or internal.

The main properties and types of adapters for pipes made of different materials

To select the necessary adapters, you should know what the plumbing market offers and how they can be used. There are two groups of sewer adapters:

• concentric - designed for installation on vertical sections of communications;
• eccentric - installed on a horizontal pipeline.

Connecting sewer pipes is a top priority when installing a drainage system. The comfortable living of residents in the house depends on how correctly the technological process is performed. In general, the docking of tubular products is somewhat similar to the Lego constructor.

Material Orientation

When starting serious work - choosing the option of joining pipes for sewerage, it is important to know in advance what material you will have to deal with.

To date, the following products are used in water disposal systems:

• from PVC (polymer);
• cast iron;
• become;
• concrete;
• ceramics;
• asbestos cement;
• corrugations.

The first two types of material are most often used, while others are quite rare. Corrugated pipes are in demand in external pipelines of private buildings or as components of networks of large industrial facilities.

Cast iron pipes have found application in outdoor drainage systems. Compared to steel, they are quite heavy, so they are not suitable for internal sewage, especially if they are installed by one person. But at the same time, cast iron pipes are not afraid of corrosion, like steel pipes, and have a long service life, and are also in demand in heating systems, in particular, when installing risers. Although not every person will complete the connection of complex elements in cast iron pipes. As a minus of such products is the regular sticking of waste inside the pipe due to an uneven surface. In winter, during the heating season, they are more prone to clogging. Against their background, polymer products are more practical.

Plastic pipes: an advantageous connection

To understand how to connect plastic sewer pipes, you need to consider the positive arguments in their favor:

• anti-corrosion properties, thanks to which PVC products can be safely laid underground without additional insulation and at the same time save significantly;
• chemical resistance to substances and aggressive environments;
• light weight of plastic pipes;
• excellent throughput due to the smooth inner surface;
• the duration of the service life, which can reach 100 years;
• easy installation, allowing you to build a drainage system of any kind.

As a minus in the operation of PVC pipes - limited throughput. Although this drawback can be completely resolved if you choose a larger pipe. Knowing the diameter and length of the product, it is easy to pick up parts for a plastic sewer network. Knowing theoretically how to connect two pipes of different diameters, you can proceed to practical steps.

Also, this type of pipe is successfully used for external sewerage networks. At the same time, in harsh frosts, attention should be paid to thermal insulation, for example, the acquisition of soft insulation.

Docking of PVC pipes for sewerage, fittings

Often at home, plastic pipes are joined together using fittings. These are a kind of connectors that ensure the tightness of the structure, excluding the penetration of dampness and unpleasant odors from the system. Thanks to a wide range of these products, it is facilitated repair work and replace worn parts with new ones.

Consider how to connect sewer pipes using fittings.

The latter are classified into types that are different in:

• functions (intermediate or connecting fittings);
• structures (couplings, tees, turn signals, extension cords, etc.);
• shape (straight, T- and L-shaped).

Using this classification, you can easily select the appropriate pipe material and explain in the store which fitting models are of interest.

When inserting the pipe into the fitting, do not forget to first lay the butt rubber gasket.

Pre-connection steps

How to connect sewer pipes that are components of a large system? The answer to this question involves several sequential steps.

First of all, you need:

1. Prepare a drawing of the system. It is important to take into account the objects in the house or apartment to which it is planned to lay drainage pipes, for example, a shower room, a bathroom, a bathroom.
2. Determine the places where the pipes join the central riser, and this is where the fittings will be needed.
3. Remember that pipes for sewerage in the private sector are classified into two types according to the size of the section: 110.50 mm. It is the latter option that will be the ideal solution for laying pipes for a shower, bath, sink, washing machine.

Before buying drainage pipes, you need to calculate in advance the required footage of the material so as not to waste money on excess plastic. After all, these products cannot be spoiled.

Among the connectors, the turning fitting is of great importance, designed for docking a siphon (hose from a plumbing fixture) and a PVC or metal drainage pipe. Some experts neglect this connecting element, and in vain. After all, its absence can violate the tightness of the system, and the joint will constantly let water through.

In order to ensure the longevity of the functioning of the drainage system, it is necessary to note certain nuances:

1. Provide a specific pipe slope, which is calculated taking into account the magnitude of the reduction - no more than 2-3 cm / m of the product. This indicator is necessary for the rapid removal of liquid.
2. When arranging the pipeline, start from the plumbing to the central riser so that in the future the joints do not interfere with the flow of fluid in the system.

Knowing how to connect sewer pipes to early stages, you will be able to secure the system in advance from possible leaks.

The main subtleties of laying external sewerage

Fittings are used in the arrangement of intra-house or intra-apartment sewerage. The situation is quite different with the external system, which is mounted on the site near the house. In this case, it is necessary to start with the arrangement of wells intended for water purification.

Having understood how to join the drainage pipes, it becomes clear that the outdoor system requires products of a larger diameter.

Be sure to take into account the fact that the diameter of the outer pipe should slightly exceed the size of the sewer. It is better to take material with a “reserve” than to change the entire drainage system when there is a desire to attach new plumbing fixtures.

Having completed the preparatory steps, you can proceed to a serious matter - connecting sewer pipes. According to the types and joints of pipes, two types of connections are distinguished: detachable and one-piece.

Docking of pipes by a detachable method

Such connections are classified into flanged and coupling. For plastic pipes, it is better to use the first option. To achieve excellent tightness, it is better to use cast iron fasteners and rubber gaskets in detachable connections.

We will analyze in stages how to properly connect sewer pipes using flanges:

1. Cut the pipe very evenly, without chamfers.
2. Put a free flange on the cut.
3. Insert a spacer protruding 10 cm from the cut line.
4. Put a flange on it and connect it with mating fittings.
5. Fasten with screws.

During the repair or installation of pressure / non-pressure systems, coupling connections are used.

In order for the system to function trouble-free, you need:

1. Before connecting the pipes to each other, cut off their ends at a 90̊.
2. Attach the sleeve to the joint so that it is located just in the middle of the connector.
3. Make a mark on the pipes about the location of the coupling.
4. Treat the ends of the pipes and the fitting from the inside with a special lubricant.
5. Insert one of the pipes into the coupling until it stops.
6. Dock the pipes without skew to get a single axis.
7. Slide the coupling onto the second pipe to the previously marked mark.

This detachable method is very convenient when disassembling the pipeline if necessary. When assembling, great attention is paid to the sealing of the joint.

One-piece types: nuances

Now let's figure out how to dock sewer pipes using an all-in-one technique.

There are different ways, but here are the most common:

1. "In the bell". According to the theory, a bell with a rubber ring connects to the flat end of the pipe. Before starting work, all surfaces are cleaned and degreased, and a chamfer must be removed from the flat end of the tubular product. Before joining, both surfaces are treated with silicone grease, and in case of its absence, with liquid soap or detergent, and then joined. In this case, the longitudinal axes of both products must necessarily coincide. The flat part is inserted into the socket no deeper than the previously made mark.
2. Welding: socket or butt. According to the theory of the first option, using moderate pressure welding, the following are melted: inner side the socket of one pipe and the outer - the smooth end of the other. If butt welding is done, then the ends of both pipes and the junction itself are melted. The latter technique allows you to understand how to connect pipes of the same diameter.
3. Gluing. According to this method, the connecting ends are covered with a special glue. It is chosen depending on the material of the pipes. For example, BF-2 is suitable for metal and plastic, epoxy glue is suitable for polymers and metal, grade 88N for rubber and metal.

The most reliable connection option

The "bell" method is considered the most accessible and easiest type, which even an amateur will perform. But this option does not guarantee high tightness, because. it is provided only by a rubber ring in the socket. The latter is inserted into the tubular product in the opposite direction with respect to the direction of water movement.

Fittings are fixed with O-rings. This method is applied to small diameter PVC pipes and allows you to understand how to connect two threaded pipes. Compared to metal models, it is not needed here. preliminary preparation to work with plastic.

The welding method requires additional knowledge and skills in the operation of the welding machine. But at the same time, this method is very reliable.

Excellent bonding strength will provide a special glue. But before using it, it is necessary to clean the surfaces of dirt and thoroughly degrease them. Actions should be performed fairly quickly.

Our recommendations will help you figure out such a difficult matter as joining sewer pipes. Having made a high-quality connection, you will save yourself from unpleasant leaks and gusts of the network, frequent repairs and endless financial expenses.

Installation of sewerage in the house is a complex process that requires certain skills and abilities. The labor intensity of such work is quite high. All products must be made of the appropriate material and have accurate diameters.

It is important that there are no leaks after installation. Connection points must remain dry. If the installation of the docking zone is not done correctly, blockages may occur, which requires dismantling and laying the system again.

That is why the question of how to combine sewer plastic pipes with each other is always relevant and requires detailed consideration.

1. Sectional. Fastening is carried out using a coupling or flanges.
2. One-piece. The joints are welded together or glued, but it is also possible to install fittings.

Flange connection

This technology involves the use of rubber gaskets and cast iron fasteners. The ends of the pipes are made even, a free flange is installed on them. After that, a sealing part is inserted, on which a second metal flat disk is superimposed on top. The whole structure is fastened with bolts and nuts.

Union connection

The end of the pipe is cut off, maintaining 90 degrees. First, a coupling is put on, the central axis of which must necessarily coincide with the joint. Points are then marked on the part to indicate the location of the connector.

The inner surface of the products is lubricated with a special viscous substance. Next, the pipe is inserted into the coupling. The structure is pushed onto another cylindrical part, adhering to the notches made.

When a free-flow sewer is installed, fittings made from special corrugated pipes are used.

The above methods do not require large financial costs and the involvement of expensive equipment or tools.

One-piece mounting

To carry out butt welding, you must have special tools. In addition, electrically welded couplings are installed. The ends of the pipes together with the connecting element are heated to a certain temperature. Adhesive mounting requires the use of a special multi-component composition.

Before proceeding with gluing, you need to study the instructions of the glue well. Only the correct application ensures the reliability and tightness of the joints.

This welding method has one drawback: it requires the use of expensive equipment.

plug connection

This technique has two options:

1. Flanged.
2. Coupling.

Combine sewer plastic pipes better first way. To achieve complete tightness, you need to install a rubber gasket and fix everything with cast-iron fasteners.

The work is carried out in a certain sequence:

1. The pipe is cut off. It is important that the cut is perfectly even, and no chamfers are allowed.
2. A free flange is put on this edge of the cylindrical structure.
3. The rubber gasket is installed. Its protrusion beyond the cut should reach 10 cm.
4. A metal flat disc is placed on the sealing piece. It is connected to the response element.
5. The whole structure is fixed with bolts.

Installation of pressure and non-pressure systems requires the use of coupling connections.

To obtain a reliable and high-quality design, it is necessary to perform several technological operations:

1. The ends of the parts should be cut only at an angle of 90 degrees.
2. The coupling is mounted so that its axis falls on the center of the docking station.
3. A special mark is made indicating the position of the coupling on the product.
4. The inner surface of the connecting element and the end of the pipe are lubricated with a special viscous substance.
5. The first cylindrical product is inserted into the sleeve until it stops. The axes of these parts must match.
6. The connecting element, together with the pipe, is pushed onto the mating cylindrical product to the left notch.

This technique allows the dismantling of the pipeline. However, when re-installing, special attention must be paid to the tightness of the joint.

The nuances of an integral connection

Depending on the technology used, permanent connections are divided into several types.

in the bell

The industry produces plastic pipes of various sizes. This installation resembles a children's designer. You can assemble almost any equipment, regardless of its complexity.

This technology is performed in a certain sequence:

1. Joints are thoroughly cleaned, then equipped with rubber insulation.
2. The smooth end is covered with silicone grease or liquid soap.
3. The connection of sewer pipes must not have play. Insert them all the way and very tightly.
4. The connection depth is determined by the notch made on the inserted pipe.
5. The cylindrical structures are undocked by 1 cm. The largest penetration is taken as the basis.

Adhesive connection

PVC pipes are quite often combined with each other with a special composition. To do this, several operations are performed:

PVC pipe welding technology

This technique has gained great popularity, as the connection receives high reliability.

For welding, the edges are heated with a special iron until they begin to melt, then the ends are pressed tightly. After cooling, a solid monolithic structure is formed.

How to connect plastic to cast iron

It should be noted that complete replacement iron products have not yet occurred. The complexity of installing such a sewer is quite high. In this case, it is necessary to combine products made from different materials. Such work is carried out according to the developed technology.

Docking with bell

When the condition of the cast iron product does not cause any concern, while the surface of the socket has retained its smoothness, a special sealant can be used for joining. Works are performed in a certain sequence:

1. The surface is cleaned of rust, all dirt is removed.
2. Sealant is applied to the outer plane.
3. A rubber adapter is inserted into the socket.
4. A new cylindrical product is mounted in the cuff.

This method is considered to be the simplest. It allows you to start operating the sewage system immediately after its assembly. In addition, to perform such work, you do not need to resort to the services of professionals.

Docking without socket

When a cast iron product does not have a funnel-shaped expansion, a different connection technology is used:

The use of silicone and linen

This connection option involves the use of linen winding. This requires a number of operations:

1. Where plastic is combined with cast iron, PVC pipe is processed with sanitary winding.
2. Cylindrical products are connected to each other. The remnants of the thread with any sharp object, such as a screwdriver, are pushed into the gap formed.
3. The docking place must be covered with a polymer-cement mortar consisting of cement, PVA glue and water.

When the work is completed, you need to wait one day and only after that proceed with the operation of the sewer.

Another option for connecting cast iron and PVC involves the use of sanitary silicone. This technique shows positive result if there is a small gap in the joint, approximately 2 mm.

Products are pre-dried well. To do this, you can use a building hair dryer. A narrow gap is filled with sanitary silicone using a special gun. The strength of the joint depends on the depth of penetration of the composition: the deeper it is, the better.

Silicone dries out after 5 hours, and only after that you can start operating the drainage system.

Which connection method is considered the most reliable

The most simple and effective is the bell technology. Even a beginner can easily perform such an assembly. The tightness in this case depends on the rubber ring with which the socket is equipped. It should be directed opposite to the flow of water.

In the absence of lubrication, you can use liquid soap or detergent.

Welding the ends of pipes is considered a difficult method. To perform such work, it is necessary to have special expensive equipment. However, the reliability and tightness of the docking always remain at the highest level.

Adhesive bonding allows you to get a fairly strong joint. Before starting work, it is necessary to thoroughly clean the parts from dirt and degrease the surfaces. All actions are performed quickly and accurately, until the glue has had time to harden.

O-rings are used to secure the fittings. Such installation can be done by hand without the involvement of an assistant. This method is suitable for combining products of small diameter.

The fastening must be done so that the junction has free access to remove blockages.

To fix PVC sewer pipes, no special preparation is required, which cannot be said about metal counterparts.

Conclusion

All of the above technologies contribute to the creation of a reliable and sealed structure that does not have to be repaired often. How to connect the sewer pipes is up to you, but remember that only a well-done job can prevent leaks and blockages.