Principles of arrangement of silent sewage

A significant level of discomfort is created by noise. And it is not at all necessary that the noises be pronounced. Even quiet, but constant sounds, for example, the flow of water in pipes, can lead to disorders of the nervous system.

Modern residential buildings create comfort to people thanks to plumbing, heating, sewage. But this comfort is limited, if a silent sewage system is not provided, as well as noise insulation of other communications.

Is there a sewer without noise?

Plastic pipe production technologies, which enjoy a high level of popularity in construction, are being consistently improved.

If at the first stages of production were produced products with frankly low noise-canceling characteristics, now the situation changes. On the market, so-called silent tubes are increasingly being seen.

What are silent sewers? These are products for the production of which, along with traditional materials, materials are used that can dampen sound waves.

The structure of the silent pipe for sewage is formed from several working layers:

• polyethylene (hard);
• mineralized polypropylene;
• polyvinyl chloride (mild).

According to various estimates, a three-layer sleeve with a similar structure reduces the noise level from the fluid flowing in pipes to at least 20 dB. This value fully complies with European standards (DIN EN 14366).

An integral component of the silent sewer pipelines are special support clamps.

With these parts, polymer pipes are fixed to the mounting base. The clamp itself is an uncomplicated product - a metal hoop. But along with it, a soft polymer insert is used, the material of which effectively dampens mechanical vibrations.

Principles of low noise system

Of course, quiet household sewage does not become one only because of the replacement of conventional trunk lines on the line of silent pipes. This option is one of several that can be used to combat unwanted sounds.

If isolate standard sewer pipe sound-absorbing material and replace the rigid support fixture with a soft insert, you can already get a good result.

Considering that the existing sewage system is completely and difficult to remodel is expensive, it is reasonable to limit the creation of insulating boxes. In combination with insulating material, this approach will give a double effect.

If the sewage system is built from scratch, in this case, it is worthwhile to carefully approach the installation procedure. Proper installation, working with shaped elements - these criteria also give a good effect of silence during the future operation of the system.

Option # 1: socketless connection

For example, it is recommended to connect the socketless pipes together:

1. Cut off the ends of polypropylene pipes (cut angle 90º) to level, clean burrs.
2. To use as a shaped part a sewer mounted collar.
3. Remove the sealing cuffs from the inside of the gland sleeve and put them on the pipes.
4. Above the sealing cuffs apply a water-based lubricant.
5. Insert the nozzles (applying some force) into the mounted coupling to the stop.

The same principle is performed bell pipe connection, connection with tees and corner fittings. In most cases, socket mounting takes into account the creation of thermal expansion compensators.

Option # 2: socket connection

Connections of pipes and fittings that are performed without the use of a mounted coupling, arranged on the pipeline section up to 3 meters in length (horizontal section), require compensation for thermal expansions.

That is, during installation, it is necessary to remove the pipe back to 10 mm after inserting it into the socket until it stops. The effect of thermal expansion can be ignored only in the socket-to-socket connections between the fittings.

The method of creating a socket connection:

1. Clean the pipe, the inner part of the socket, the area of ​​the sealing ring.
2. Ensure that the fitting of the socket sealing ring meets the installation requirements (no twisting, damage, dents).
3. Lubricate the water-based pipe fitting.
4. Insert the socket all the way into the socket and then push it back 10 mm.
5. Install a strap near the junction.

We should also consider the method of mounting silent sewer pipes (for example, Skolan brands). Here pipeline laying requires to perform in such a way as to exclude physical stresses and the possibility of linear expansion.

Fix now popular polymer sewer pipes can be standard clamps, but under the wrap clamp must always use the lining on the basis of the profile rubber.

Recommended principles of mounting clamps:

1. On the horizontal line, the distance between the clamps is 10 times the diameter of the pipe.
2. On a vertical line, the distance between the clamps is no more than 2 meters.
3. On risers compulsory installation of rigid and floating fastening clamps.
4. Rigid fastenings on socketless pipes are arranged above the fitting in the area of ​​the lower nozzle.
5. Floating fixing clamp is provided by incomplete tightening of the tightening screws.
6. Floating mount arranged near the rigid fasteners on the side of the socket inserted into the socket.

Subject to following the marked principles when installation of sewer system, really get the permissible noise characteristics of household sewage at 12-20 dB.

Subtleties of installation, affecting the noise level

In no case can not be used as a lubricant elements of the compounds of engine oils or similar lubricants. All of them have a negative effect on the structure of rubber seals.

Rubber loses its technical properties, cracks and structure irregularities appear on the seals. Such a seal becomes not only a source of increased noise, but at any time threatens to rush.

It must be remembered that the “straight pipe-socket” connections are always mounted with regard to the installation of the edge of the socket against the flow of drains. Under such conditions, the maximum smoothness of the inner surface of the sewage line is ensured, which in turn is accompanied by a low level of flow noise.

The noise characteristics of the sewer system are also affected by the magnitude pipe slope. It is not recommended to deviate from the established standards and norms that determine the size of the slope depending on the diameter of the sewer hose.

For pipes with a diameter of up to 50 mm, a slope of not more than 35 mm and a slope of no more than 20 mm for diameters from 50 to 100 mm is recommended. Pipelines with a diameter of 150 mm are mounted with a slope of not more than 8 mm.

Turns of pipelines, as well as branches are made by mounting with oblique tees or half-bends (angles 30-45 º). The principle of building networks in this way contributes to reducing noise sewage.

Particularly noticeable effect of noise suppression with volley discharge into the sewer. In addition, the smooth curves of turns create the best conditions in case of cleaning the system with a sewer rope.

Plastic pipelines on straight horizontal sections should be fixed with clips, support clamps, suspensions every 7-9 meters. If you deviate from these requirements, there is a risk after some time of operation to get in such areas of the region with sagging.

Pipeline sagging is a change in the flow parameters of the waste and, as a result, an increase in the noise level. In the field of socket connections, fasteners are provided by default.

Low noise sewage brand products

There are brands that have proven themselves to be of excellent quality and firmly entrenched in the domestic sewage market.

Vavin Asto and ASTOLAN

In recent years, market offerings have been surprising with an extensive choice of branded silent sewage systems. Of the examples available for installation, for example, the product under the brand name "Wavin Asto" can be noted.

The company manufactures and supplies for sale polypropylene pipes and fittingswhich basis is ASTOLAN - the material modified due to mineral additives.

Due to the modification, the engineers managed to raise the density of the walls of the sewer pipes to a value of 1.9 g / cm³ and strengthen indicators such as viscosity and specific gravity. As a result, virtually silent sewage systems “Vavin Asto” appeared.

According to representatives of the company, during the operation of the system there are no vibrational noises. Penetration of sewage sounds through airspace is also excluded.

German quality Ostendorf

Another example of a modern system without noise is sewage on the basis of pipes and shaped elements of the Ostendorf brand. The base material is the same mineral-modified polypropylene.

But the density indicators in this case are somewhat inferior - 1.6 g / cm³. At the same time, the temperature parameters of the Ostendorf sewer system are higher - up to 100 ° C, and pH values ​​are in the range of 2-12.

Branded product "Ostendorf" is characterized not only as low noise. All elements of production are characterized by a high degree of corrosion resistance, durability, resistance to the influence of aggressive media. An extensive model range of fittings and pipes ensures the creation of communications for various purposes.

Rehau and REHAU RAUPIANO Plus

Rehau systems also show a high percentage of popularity. In particular, the product REHAU RAUPIANO Plus is being aggressively advertised. The technological approach, however, is not much different from the two previous firms.

The emphasis in the fight against noise "Rehau" also do on the production of multilayer plastic pipes, strengthening the wall thickness of the corner fittings, for the manufacture of so-called "noise absorbing" clamps.

The practice of operating such sewage shows a decrease in noise of about 25-30%. If desired, similar indicators can be achieved if you perform standard work on the sound insulation of a household sewage system using available insulation materials.

With reference points of the choice of the best pipes for the device of internal sewer system will acquaint next articlecontaining a lot of useful information.

Conclusions and useful video on the topic

Some useful tips on how to reduce the noise level of the sewer system and make your life more comfortable.

The construction of a low-noise sewage system is possible, as evidenced by the numerous proposals in the field of the sanitary industry. Meanwhile, there were practically no problems with the noise parameters of the effluent as long as the good old cast-iron pipes were used.

As soon as lightweight and inexpensive polypropylene appeared in use, problems followed with silence in the house. There is something to think about as manufacturers of plastic and homeowners.

Please write comments in the box below. Tell us about how you constructed a quiet sewage system in your own house / apartment, or about the technological nuances not mentioned in the article. Ask questions, share useful information, post a photo on the topic.