House, design, repair, decor. Yard and garden. Do it yourself

When installing the new sewage in the house of the old building, it is necessary to make the transition from the cast iron on plastic 110 mm. Causes are different. The most commonly disretened by old cast iron products to further operation. But the complete replacement of vertical pipes (risers) is often stuck to the resistance of neighbors. This is where new plastic structures with old and rusty cast-iron have to be allowed.

As the pipes are connected

Old cast iron sewer systems come into disrepair. Plastic products came to replace them (Photo No. 1). They are advantageous from cast-iron pipes and have a number of advantages:

• plastic products have a smaller resistance and clogged much less often;
• plastic light weight and installation;
• you can mount it with your own hands;
• for mounting, you do not need to have special equipment;
• mascasters and seals in the form of cords are almost not used;
• plastic products are not afraid of corrosion;
• the service life of plastic products is measured by about 50 years.

The disadvantages include:

• if you drain hot water for a long time (60 ° C and higher), the pipes can be sworn;
• very low sound insulation capacity.

When moving from cast iron on plastic 110 mm, it is recommended to use special adapters and cuffs. They are made of plastic. If the cast iron tube has a fool, you need to purchase an adapter. Connection process Consider on the example of a riser with conclusions by 110 and 50 mm.

First are cleaned by squabbles. Of these, it is necessary to remove all dirt and rust, lubricate the rubber cuffs with a sealant (photo No. 2) and connect pipes. A plastic product in a slur is desirable to be administered to a depth of 3-8 cm. Such a connection is able to serve at least 8 years. You can use it immediately after docking.

Connection of new plastic pipes With old cast-iron without squabs, there are somewhat differently:

• the edge of the cast iron is leveled with a grinder;
• a rubber adapter is put on this place;
• the edge of the pipe and adapter are smeared by sealant;
• new and old products are joined.

Adapters and cuff must accurately approach the diameters of pipes.

The connection can be made by the method of zackecan. For this method, a linseed winding is needed. The order of work is:

• plastic pipe at the place of the joint is wounded by several layers of a plumbing winding;
• a narrow spatula or screwdriver winding is clogged into the slot between the pipes;
• the cast iron is labeled by several layers of polymer composite composition of water, cement, PVA glue;
• you can use the pipeline after a day.

Such joints are quite pretty good quality and high reliability. You can use this method under the bathroom or under the sink (photo number 3).

Currently, it is often used new Material - Sanitary silicone. This is a very effective connection method. To connect pipes, you need to perform the following operations:

• the place of the junction must be carefully dried construction phenomenon;
• pipes are joined at a depth of 3-8 cm;
• silicone is introduced into the remaining cracks using a gun;
• the joke should dry well for 3-5 hours.

During drying, the system of sewage is not recommended.

Sometimes you have to combine several ways to connect. If the product is formed when the product is connected, the rubber gaskets can be used with the zackecan. Corrugated plastic products are connected to the cast iron using a linen winding along with the cutting of the junction with plumbing silicone. When performing a zackecan, it is possible to use silicone instead of cement-polymer composition. It is well sealing the place of the junction.

Conclusion on the topic

Wear sewage systems In the houses of the old building - the phenomenon is quite common. Instead of cast-iron elements, plastic structures are put.

It turns it quite simple. The most difficult thing in this business is dismantling the cast-iron system. When moving the cast iron-plastic DU 110 with a cuff or without it, it may take to disassemble the riser. For this work, you may need Bulgarian. But most often the riser does not touch, but only the tubes from the bath, washing, toilet and washbasin change (photo No. 4). The junctions between the pipes are treated with construction silicone. For work, you should purchase cuffs, sealant, press fittings, plastic adapters. Everything can be done own hands. The main thing is not to rush and all operations are neat.

Hey! Today I will tell you how to make the transition from the cast-iron pipe to the plastic.

This article will help you independently calculate cast-iron sewage for repair. After that, a plastic pipe can be installed in the cast-iron socket.

What are the difficulties in this task:

1. According to the diameter standard, the cast iron pipe is more plastic.
2. Disassemble the connection without knowing the matchmakers is impossible. The jokes look like a single whole.
3. The cast iron tube is easily breaking, with a hammer it is necessary to work extremely gently.
4. The cast-iron ignion is boosted with gray or cement. With different checks - different way dismantling.
5. When chasing is gray, you will need a burner and gas mask.

Standards of diameters

We will analyze the situation, on the example of the cast-iron sewage tee in the San. node

The fact is that it is this tee that changes most often when repairing, even if it is working. It takes much more space than plastic. And this is important, since with a plastic tee, the toilet can be set closer to the wall and further from the door. Well, i.e., sitting on the toilet can be read by the encyclopedia.

Tool

The minimum that we need:

1. Plastic cuff
2. Sealant
3. Lubricant
4. A hammer
5. Flat screwdriver
6. In the case of sulfur, burner and gas mask

Step 1. Cancellation

The method of decontamination of the cast iron pipe depends on how it is assembled:

1. at cement
2. or on "sulfur"

1. Cement

It is necessary to take a small chisel or a flat screwdriver and gradually, slowly, knock on a small piece of cement. Rentally put in place between the pipe and the socket. Beat back in a circle.

Under cement - cabelk. Cabinet is such a strand of flax, soaked with oil, which prevents flax rot. Skay the cablyus as much as possible.

After that, we try to stir up the pipe. In the case of a tee, it is quite simple to settle it: in the tap of the tees insert some lever: a bar or a long key. If the tee is not stirred yet, then you knock the cement further. Do not take a big lever to rip by force. A high probability to break the fool, in which they were going to mount a new pipe. Be careful. The work is painstaking and does not tolerate a rush.

2. sulfur

Attention: fire. To begin with, you need to provide complete fire safety. You will work with open fire, remove all that can light up. Prepare water, in case something still set fire. Air. Provide full air vent. Although winter, at least a summer heat, open the window and the door so that there is a draft. Otherwise, there will be nothing to breathe. I recommend to wear a gas mask or at least a coal respirator.

I assume that it can be heated with a construction hairdryer. The melting point of sulfur is approximately 450 ° C.

After being carried out and fire safety, we turn on the burner and begin to heat the fallen evenly. I extremely not recommended, put the burner in one place and leave. With uneven heating, the cast-iron fool can burst. At least I try to avoid similar experiments.

It is not necessary to wait until sulfiate. It is enough to simply soften with heating. Insert the lever into the tower of the tee and move the tee. As soon as he moved - disconnect the burner and, shading him there, shift it into stron.

In the case of cement chasing, the same: as soon as the tee moves, start it to shake it.

Before finally remove the tee, immediately prepare a rag or another plug for the pipe. From above, we can pull the water, and the smell of sewage to breathe anything.

Step 2. Clean and put the cuff

After we dropped out the cast-iron pipe and removed the old plot, we must take care of the cleanliness of the termination.

We clean and dry it in so that there are no hillocks left.

Then we rinse the cast-iron socket with a sealant and insert the cuff (the sealant is not always needed).

I am a cuff in the mountains. Suite we throw about 30 seconds. They are soft become and easier to put them!

Veneered vitalix1974. , in the comments on YouTube

On the inside of the cuff we apply lubricant.

Step 3. Insert the plastic tube

And now it remains only to insert a plastic tube into the cuff.

It happens that the pipe does not want to pass into the cuff,

in this case, you can slightly knock on the plastic termination to drive the pipe into our cuff. Use a plate or plywoodTo distribute the load with a climbing hammer. Do not knock right on the plastic tube. It can be broken so.

Successful to you transitions!

Hello, dear reader! Cast iron pipes gradually disappear from our apartments and houses. Taking this opportunity, many during repairs are trying to replace them with more modern and light products from the polymer. And often the question arises: how to carry out the transition from cast iron on plastic or water supply.

The need to implement such a transition arises:

• when replacing the cast-iron sewage tee, which takes too much space;
• when inserted into a cast-iron riser of a plastic tee;
• when installing polymer wiring to new plumbing;
• when replacing cast iron batteries;
• during the construction of a private house, when it is necessary to "crash" into the central pipeline;
• when installing new or replace old meters.

Advantages and disadvantages of such a compound

The benefits of the transitional connection of PVC products to cast iron include:

1. high specifications plastic products, the absence of rust in them, ease and simplicity in the installation compared to cast-iron pipes;
2. less labor-intensive process of accession in comparison with the docking of cast iron products;
3. the ability to connect with your own hands;
4. the variety of ways to install polymer pipes with cast iron, each of which brings a reliable result;
5. lack of need to acquire expensive equipment, use welding, etc.;
6. large selection and connecting elements.

The disadvantage is the difference in the temperatures of the heating of these materials. Plastic products are heated faster, while they begin to deform, which leads to the looping of certain types of compounds and loss of their strength.

For this reason, with time, the detachable compounds of cast iron and plastic lose their reliability.

Perform work yourself or call the masters

It all depends on the complexity of the connection. Replacement of cast iron riser in apartment houseFor example, only a specialist invited managing Company. The plastic supply of the cast-iron channel to the plumber can be made by almost any man independently.

More complex work, including disassembly of cast-iron pipes, it is better to entrust professionals.

Approximate cost of work

The cost of its services master calls after inspection of the front of work. The price of mounting works depends on the number of points of the connection of the segments of the pipeline, their complexity. De mounting work Estimated by the number of route meters. Dismantling the cast-iron tee will be evaluated separately.

On average in Moscow, the price of work on the replacement of iron sewage (1 point) begins from 1200 rubles. Dismantling of cast-iron sewer pipe - from 380 rubles. For the temporon meter.

Connection methods

The choice of the method of the compound is due to the presence or absence of the crush in the cast-iron segment.

If there is no clock or it is damaged and it cannot be used, the optimal solution will be a threaded connection through a polymer adapter, in which there will be a thread at one end to connect with a plastic sleeve.

Along with this way there are other technologies. Consider every method in more detail.

Application of rubber strip

If the cast-iron canal with a socket, use an easy way to connect through rubber gaskets. They are rubber stepped cuffs of various diameters.

• The inner part of the crop is carefully cleaned.
• Lubricate the edges of the crop and the outer surface of the cuff with a sealant.
• The seal is placed tight in the cross.
• Then there is inserted there plastic input until it stops at least 3 cm. The junction is processed once again with a sealant.

Such a method is used often when connecting a liner from washing.

The transition using a rubber cuff is shown on this video:

Using a plastic adapter with a rubber seal

Such a compound is used when there is no Casting Pipe Tube.

1. Crop the end of the pipe smoothly with a grinder.
2. They put on it the rubber ring, then the cuff.
3. All this is missing sealant.
4. Next arise with plastic adapter.
5. The adapter is installed ring and the socket of the polymer pipe is dressed.

Use press fitting

Fitting compound, and at the same time the most time consuming. Its reliability is provided by a threaded connection of the transition clutch with a cast-iron pipe. The transitional coupling has a thread on one end, on the other - the fool for supervision compound with a polymer sleeve.

• At the end of the cast iron pipe, the chamfer is cut off, after which they cut a thread cut down to 5 cm.
• Carve a thread is carried out by winding a pacular or tape-FMU using a plumbing paste.
• Hand screwed the adapter on the thread so that the fitting is not cracked. In the future, after the start of operation, you cheat it with the key.
• In the fallen on the other end of this clutch, a plastic pipe with a crimp cuff is inserted and an obmol is a special manual press.

This video demonstrates a threaded connection:

Zackeck winding of flax

The zackecan has long been applied to the field connection of sewage pipes.

1. The inner part of the cast-iron termination is cleaned, making its surface as smaller.
2. Insert into it until the end of the plastic tube, wrapped with a linen winding, lubricated plumbing paste.
3. Using a simple screwdriver, fits the winding of the gap. Fill the seal free space for two thirds.
4. The remaining place is closed with cement mortar with the addition of PVA glue.
5. Leave a solution for a day at the junction site.

Currently instead cement mortar Silicone sealant is increasingly used, which due to its plasticity does not allow the compound to lose strength when temperature drops. This is especially important when moving from cast iron on plastic, given the difference in their heating temperature.

This photo shows how to properly produce a zackecan:

Sealing silicone

This method is very simple, takes quite a bit of time. It is used for sealing slots, the size of which does not exceed two millimeters.

• The skin must be cleaned and dried, for which the construction hairdryer is used.
• The connected end of the polymer pipe is wrapped with a plumbing thread, insert into the socket and close the slot around it with silicone.
• Silicone must be poured into depths, until the very end of the plastic.
• At the time of drying out the sealant (about 5 hours), the pipeline is better not to use.

Flange connection

This species refers to the detachable connections. Apply it when working with pipes of large diameters, where it is difficult to make a thread cutting and use the connection with threaded couplings. If necessary, it will be possible to disassemble, repair.

The procedure for the work is as follows:

1. Cropped with a grinder smoothly cast-iron pipe.
2. Clean the welcome place from Zzabrin.
3. Weld to the resulting nozzle flange.
4. On the connected plastic part, a special crimping clutch is put on, the flange part of which is attached by bolts to the flange of the cast iron. There is a seal between flanges.

What is the better way

The strongest and reliable way, as we have already emphasized, is a threaded connection on adapter couplings.

Simple to use are compounds on silicone, rubber gasket.

Flange compound is suitable in works with large pipelines, where the detachable attachments are more relevant.

GOST and regulations

The production and size of cast-iron sewer pipes is regulated by GOST 6942-98.

For plastic pipes, there are many guests and SNIPs that regulate their individual characteristics.

For each type of polymer, depending on the scope of application (sewage, heating or water supply) operate their GOSTs.

For example, the characteristics and dimensions of plastic pipe products intended for cold and hot water supply systems and the heating of buildings various destination, Adjusts GOST R 52134-2003.

Standards of diameters

For home internal sewers, cast iron pipes are used in the internal cross section of 50 mm (DN) and 100 mm (DN).

The size of the outer sewage is determined by the standp standards. In the intravadral network, a diameter of 150 mm is used, in street networks - 200, 250 mm.

Polypropylene products are manufactured according to GOST 26996-86. A certain size for the sewage sphere is not installed. But in practice the following diameters of sewer plastic pipes have developed: 32, 40, 50 and 110 mm.

For pipes from polyethylene, working diameters - 40, 50, 90 and 110 mm - determined GOST 22689.2-89.

For PVC products, the section of sewage products regulates GOST 51613-2000. His requirements: PVC pipes must have Ø from 10 to 315 mm.

In order to make drainage, pave out the outer sewer, septic tube, you will need a cross section of 110-200 mm.

Step-by-step pipe joint equipment

The work technology includes the following steps:

• Preparatory stage.
• Selection of tools and materials.
• Dismantling part of the old pipeline.
• Preparation of two pieces of pipes to the connection.
• Operation for connecting parts.
• Required tools and materials

At the first stage, they are determined with the connection site and choose the method of its implementation. They produce the necessary measurements, determine the need for materials.

Required tools and materials

Polymer pipes buy suitable size. To connect the toilet to the cross, the elements of 110 mm diameter will be required, for laying pipes to sink or bath the best option There will be plastic with a diameter of 50 mm.

In accordance with the project, the necessary connecting materials are acquired: the seal, fitting, sealant, etc.

Pick up required tool. It may include:

1. the set to dismantle the cast-iron part is the handbrake for metal or a bulgarian, a hammer-mall, a rubber lining;
2. screwdriver;
3. spanners.

For cutting threads need threadar.

For plastic connections, there will be either a manual press or a welding machine - iron.

Stroke work

If you have to make a layout, make the markup of all its plots. In the case of short wiring, there is a crash of cast-iron.

FEATURES OF MONTAGE

If you have to disassemble and remove the old part of the cast-iron from the termination, care should be taken: the cast iron is a fragile metal and the fool can crack from the impact of the hammer, strong turning into it a piece of slicer. Cleaning may require the use of a soldering lamp or burner if the connection is flooded with gray. It is not necessary to do without a respirator or gas mask.

For the cutting in the sewer riser and the transition from cast iron on plastic, compensating nozzles are used. They compensate for the deformation of the polymer when the temperature drops. And in combination with corrugated sleeves, they can give the necessary tall slope.

The wiring is always starting to collect from the riser.

Frequent problems and errors when connected

Often, rubber seals are trying to insert into the socket without proper preparation of its inner part. It should be understood that any tubercle on its surface can cause leakage. The input part of the cast iron should be carefully soaked with a mechanical way.

The insufficient slope of the removal from the plumbing devices to the riser causes constant and frequent stories in the sewage system.

The cause of poor tightness of the compounds is often the absence of elementary lubricant, insulating layer, weakly or excessively tightened threaded connection.

The insertion into the sewage riser is carried out using a polymer tee. Curses when assembling a samotane sewage system should be directed against the flow of effluent.

When tightening the threaded connection, it is necessary to apply to the turns of the passage and lubricate it with plumbing paste. Putting or fum-tape wound over the thief direction.

The plastic channel does not provide complete noise insulation. You can solve the problem by installing an additional protective box.

Due to the difference in thermal expansion coefficients in the compounds of cast iron plastic, it will correctly use as a silicone seal.

The combination of several methods for docking pipes

To ensure that you protect yourself from leaks, a combination of several methods of connections is used.

Thus, the docking on the rubber gasket can be supplemented with the fracture of the slots or silicone, or cement-sandy solution with PVA glue.

Sewage adapters are the most important link of the pipeline system and are widely used when installing it. Thanks to the enormous assortment of connecting fittings, it is possible to arrange external and internal communications of any complexity.

Appointment of fittings

The role of adapters in the sewage system is difficult to overestimate. Without their help, no repair of plumbing pipes and no construction of the new line are. The fittings are particularly valuable in cases where you need to transition from the pipes of one diameter to the other pipes - more or less. Adapters are indispensable when performing repair work Inside the room, when there is no possibility to change the entire sewage system entirely, and you have to change only its particular site.

Very often, the material of pipes of generalic networks does not correspond to the material of the pipes installed in the apartment. The most common situation is as follows: the total sewer riser is made of cast iron, and the owner of the apartment plans to install plastic in its bathroom. In such cases, adapters come to the rescue, which are able to associate different pipelines in a single network and ensure the reliable and hermetic compound.

In addition to connecting heterogeneous materials, adapters allow you to form any network configuration and change the direction of existing ones. In addition, with the help of the shaped parts of the cast iron, the chemical drainage and contaminated waters can be carried out, the temperature of which exceeds 60 degrees.

Materials used

Steel, copper, cast iron and modern polymers are used as materials used for the manufacture of adapters. Plastic is the most common type of raw material, and gradually displaces metal counterparts. Polypropylene and polyvinyl chloride are used for the manufacture of polymer fittings. The use of such parts significantly simplifies the installation work and significantly reduces the time for their conduct.

High popularity and high consumer demand for plastic adapters are due to a number of indisputable benefits of such parts:

• the small weight of fittings makes it possible to easily install the overall details of external systems independently;
• a huge range of more than 100 types of plastic adapters allows you to quickly choose the desired detail;
• articles from PP and PVC are not subject to corrosive processes, which distinguishes them from metal analogues;
• fittings are characterized by high strength and long service life, which allows after their installation for a long time to forget about the repair;
• low cost and wide consumer accessibility allow you to not save on the material and for small money to form a high-quality pipeline.

The minuses of plastic adapters include the probability of deformation from exposure high temperatures, the impossibility of using plastic for taping chemical drains and low cold resistance.

Cast iron is also used to make adapters. Despite the fact that cast-iron pipelines are gradually displaced by plastic, the material is still quite widely used to repair the communications of the old residential foundation. Cast iron elements are installed at the places of locks of cast-iron and plastic pipes. Installation is carried out using a threaded connection. To ensure high tightness, fittings are equipped with rubber cuffs.

Shaped parts from cast iron also have a number of benefits.

• The life of pig-iron adapters is much higher than the timing of the service of steel and plastic products and reaches 80 years.
• After dismantling, the fittings made of cast iron can be reused, which cannot be made with plastic and steel counterparts.
• High tightness joints. Sometimes on the particularly problematic areas of the pipeline, the places of compounds are labeled with polymer sealants, after which they are pressed using a lock nut.
• Unlike steel and plastic fittings that are attached to pipes with welding or crimping, cast-iron adapters are mounted due to the threaded method. It greatly simplifies the installation and makes it available even for a beginner plumbing. In addition, in the event of the need to eliminate the block, the plastic fitting must be uninstalled, and the cast-iron is enough just to unscrew.

By minuses include a high weight of cast-iron products, the presence of a high linear expansion coefficient inherent in iron, and the need for a periodic inspection of compounds to stretch the weak nuts.

Metal adapters are used to connect steel pipelines and are made of copper and copper alloys of low carbon steel. Some models have a coating of zinc or nickel. This allows you to improve their anti-corrosion properties and increase the service life. The connection of metal adapters with pipes occurs with the help of a threaded method, and the fitting thread can be cut both inside and outside.

The advantages of such parts are broad consumer accessibility, simplicity of installation and a large range of products. The minuses include the susceptibility to corrosive processes, which is why such adapters often "drag" to the pipe and dismantle this connection is very difficult.

Classification

On the modern market The shaped elements of adapters are presented quite wide. In addition to manufacturing material, fittings differ in each other at the place of installation and functional accessories. At the place of installation, adapters are represented by eccentric and concentric models. The first are designed for mounting on horizontal pipelines, and the second are used on vertical highways.

However, the main feature according to which the classification of adapters occurs is their functional destination.

• Coupling. This fitting is used to form a pipeline from the pipes of the same diameter. The size of the coupling internal cross section corresponds to the outer diameter of the pipe. Couplings can be released both with external and internal threads or be compression (capable of attaching with the help of crimp).

The compensation clutch is a type of connecting and serves to ensure the integrity of the compound under the influence of thermal linear expansion. It is often used in systems with large discharge volumes. hot water, leading to a change in the size of pipes in length and width.

• The transitional coupling ensures the transition of the pipeline from the pipes of the larger diameter to the smaller.
• The removal is used in cases where it is necessary to change the direction of the pipeline. Products are produced in different versions Rotary angles, the most common of which are corners of 30, 45, 60 and 90 degrees. Many models have deviation from the central axis towards the rotation of the system, which facilitates the free current of the sewage masses and reduces the probability of a blockage.
• The fitting is designed for connecting a plastic drain hose and a metal pipe into a single network.

• Cross is used in cases where two branches must be made from one pipe. Each of the sides of the Cross may have its own size of the section, and the angle of connecting pipes is 90 degrees.
• The tee, as well as the crossed, branches the network and is often used to connect the drain of dishwashers and washing machines to sewage. Fittings allow the connection of pipes at an angle of 45, 67, 88 and 90 degrees. On the inlet nozzles of the product there are rasters, equipped with sealing rings, and the exit channel is fully compatible with the socket of the main pipeline.

• The distribution is a curved fitting, with which one system is bypassing the other when they are intersected in the same plane.
• The saddker consists of two parts, crimping the pipe, and serves to perform the insertion into the main pipeline.
• Flanges are the type of adapter, with which they connect metal pipes with PVC pipes.
• Reduction - fitting that allows you to connect the elements of a sewage system that have different diameter.

• The compensator is a variety of adapter and is installed on the lower sections of the pipeline. With it, pipes are connected from different materials, the necessary bias is formed, and the hydrowards are quenched. However, the main function of this fitting is the deformation compensation of pipes and their compounds resulting from the effects of high temperatures.
• The adapter with a ball valve is installed before entering sewage network In the house and is located in the viewing hatch.
• The two-star siphon is designed to ensure ventilation and timely removal of poisonous sewer gas.

Dimensions

The adapter sizes are fully consistent with the size of the pipes involved in the formation of sewer systems. To arrange internal networks, the most common sizes are 110, 100, 50 and 32 mm. Such fittings can be mounted both using a threaded compound and with welding, in contrast, for example, from the overall products with a diameter of 250 mm, the installation of which is carried out only with the use of a welding machine. In this case, the connection is performed completely indefinitive, and it will take to dismantle the connection.