Silencer corrugation device
The car muffler corrugation is one of the most important parts of the muffler, playing the role of an elastic joint in the exhaust system. The need for its installation is due to the fact that the inevitable result of the operation of a car engine is the occurrence of vibrations, which, among other things, are transmitted to the exhaust system. It is to dampen these vibrations that an elastic muffler corrugation is needed.
In addition to its most commonly used name, the following designations can be found a little less often: corrugated element, vibration compensator and flexible connections. All this indicates one of the important elements of the car, necessary to reduce detonation. In addition, the design of the muffler corrugation can significantly reduce the technological load on the exhaust tract. This is a kind of fuse that prevents the destruction of the car's exhaust system. Therefore, the place of installation of the corrugated element is usually a downpipe or other area where there are increased vibration loads.
Briefly summarized, the muffler corrugation performs the following functions:
- acts as an elastic connecting element between the parts of the car exhaust system; — compensates for the vibration that accompanies the operation of the engine; - dampens vibrations that occur when starting the car.
The muffler corrugation device can be very different. It can consist of two or three layers, and also have a single or double reinforced braid. It depends on how it will cope with the functions assigned to it, as well as its durability. It depends on the integrity of the corrugation whether exhaust gases will enter the car interior, and therefore your comfort during the ride. In addition to this violation of the integrity of the vibration compensator can lead to overheating of the muffler, and hence a decrease in the quality of the entire exhaust system.
Since the corrugation accounts for the maximum number of loads, it is most often subject to ruptures and breakages when compared with other elements of the exhaust system. The design of the muffler corrugation mainly implies the possibility of mechanical failures, for example, due to collision with obstacles. Although the material of this compensation element is usually high-alloy steel, which ensures its high strength and durability, mechanical damage is by no means uncommon. In addition to collisions with obstacles and other shock loads, the corrugated element may fail due to the poor condition of the engine mounts, wear of the muffler mounting rubbers. A clogged catalytic converter is the most common cause of muffler corrugation failure. There are frequent cases when damage to the corrugated element, as well as other elements of the exhaust system (burnout of the exhaust pipe and manifold gasket, as well as the appearance of a crack in the manifold), can occur due to failure of the catalyst, if the vibration compensator is installed before him. If the catalyst is clogged, then the exhaust gases do not find an outlet, as a result of which the pressure rises and the corrugation collapses. In addition, the muffler corrugation may fail due to the presence of salt and reagents on the roads. Another, quite common, reason is the presence of special additives in fuel that increase its octane number.
A sign of its failure is a sharp noise during operation in the front of the machine or under the hood. Moreover, with its complete failure, the noise can be deafening. The second sign is the appearance of the smell of exhaust gases in the car.
In addition, a significant loss of vehicle power is possible, which is manifested in modern models, where leaks in the exhaust system lead to improper operation of the oxygen sensor.In this case, it is necessary to immediately replace the silencer corrugation so that the vibration does not lead to the destruction of the exhaust system.
It should be said right away that the device of the muffler corrugation does not imply its repair. Only a complete replacement is possible.
At the same time, it is necessary to pay attention to the state of the catalyst, since damage to these elements is in most cases interrelated.
When repairing, it will undoubtedly be more cost-effective to install a new muffler corrugation than to change the entire exhaust pipe. You should not buy the cheapest corrugations, as this is far from the best option and such vibration compensators will not serve you for a long time. To install the corrugations, an experienced welder is required who will not overheat it and will not burn through. Therefore, it is best to entrust this work to a serious car service.
Years of work experience
muffler corrugation
The silencer corrugation, or sometimes called a bellows, is usually installed directly on the exhaust pipe, after the catalyst, but in some exhaust systems its position is after the exhaust pipe (resonator). The corrugation is necessary to reduce vibrations transmitted from the engine to the exhaust system and, as a result, to the car body, as well as to prevent breakage of exhaust parts. By reducing the vibration on the exhaust system, good conditions are created for its longer operation, in particular, even if the car ran into an obstacle with the exhaust or reversed unsuccessfully, then most likely you will damage the corrugation, rather than break the exhaust system or manifold, the repair of which will cost significantly more expensive.
As a conclusion
It is worth paying close attention to the malfunction of the corrugations and immediately take action. Ultimately, everything can end up with a breakdown of the entire exhaust system, and replacing one part is much cheaper than a full repair. It is possible to do the work on your own or go to a car service.
But in addition, during experimental installation, one should not only follow the rules, but also drive carefully. In addition, the life of the driver himself, his other participants and road passengers depends on this.
See how to connect the car radio in the car and what specific points to pay attention to. How to check the generator with a multimeter without removing it from the car
How to check the generator with a multimeter without removing it from the car.
Is it necessary to hang an exclamation symbol on the car http://voditeliauto.ru/voditeli-i-gibdd/pdd/znak-nachinayushhij-voditel.html for a novice driver.
Video - do-it-yourself muffler corrugation replacement:
Mandatory reading:
- Liquid glass for a car
- Factory marriage of the car. Who will protect?
- Winter trouble washer and wipers
- recycling fee and car recycling, the realities of the car market
- Strike at AvtoVAZ
- Bus driver
- New inspection card from 2012
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What it is
Often in auto repair shops, corrugation is mentioned as a circumstance of a malfunction in the exhaust system of a car. So what is a muffler corrugation? By appearance it will look like an elastic tube with an iron weave in the form of a multilayer mesh. This elastic detail is an integral part of the exhaust system of any modern car.
It is an intermediate link between the intake and exhaust pipes of the muffler.
Unfortunately, the muffler corrugation is located in such a place that after the collision with an obstacle that hits it, it may be necessary to replace the corrugation. In addition, the need to replace it appears due to natural wear and tear after a certain number of work cycles.
Corrugation for cable, dimensions, prices
Corrugated pipes for electrical networks are available in sizes from 16 mm to 65 mm. When choosing a size, it should be borne in mind that these products have two diameters - outer and inner. If you are going to lay several conductors - wires or cables - the diameter must be selected so that there is a gap of at least half the radius. This requirement is based on the fact that with group laying (it is necessary, by the way, to take a special cable), it will heat up more and the presence of an air gap will contribute to better heat dissipation.
The price of corrugated electrical pipes depends on many factors.
Size selection
The choice of corrugation diameter also depends on the area where it will be laid:
- to lighting fixtures - 16 mm;
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to sockets and switches - at least 20 mm;
- from the main junction box to the next box, from the shield - at least 25 mm;
- the connection between two electrical panels is at least 32 mm, and it is better to have a spare second line;
- passage through the floor overlap - with a rigid corrugation of at least 40 mm in diameter;
- laying low-current cables (telephone, internet, antenna, etc.) - from 25 mm.
The diameter of the corrugation for laying the cable is selected depending on the number and cross section of the wires. Data for copper conductors are given in the table.
Table for selecting the diameter of the corrugations for cables and wires, depending on the cross section and number of wires
This information is for reference, but you can navigate it. You can take a larger, but not a smaller diameter.
Prices
Generally speaking, the cheapest is corrugation for PVC cable, in the middle range - PP and HDPE, the most expensive of all - metal corrugated. Moreover, the option with broach is slightly more expensive than without it.
When buying, you need to pay attention to the same wall thickness, color uniformity
Different materials, colors, wall thickness and different prices
Corrugation for cable is sold in coils of 50 and 100 meters, less often it can be found in meters, but then the price is slightly higher. In general, the price depends not only on the material, but also on the wall thickness. The cheapest is light PVC corrugation for cable, but sometimes it looks more like just a film. From what it can protect, it is difficult to say. If you are concerned about quality, it is better to purchase everything related to electrics not in construction supermarkets such as Leroy, etc. and in specialized ones. The quality there is usually better, and the prices, if higher, are justified. In order for you to have an idea about the possible spread of prices, in the table we will summarize several types of corrugations with a brief technical description.
| Name | A type | External diameter | Inner diameter | broach | Price per meter | IP | Purpose |
|---|---|---|---|---|---|---|---|
| PVC corrugation | light | 16 mm | 11.4mm | Yes | 2.4 rub | ||
| Corrugated HDPE pipe black | DCS | 15.7mm | 11.3mm | Yes | from 7.5 rub/m | 55 | for concealed laying |
| Corrugated HDPE pipe black | DCS | 19.5mm | 14.5mm | Yes | from 8.9 rub/m | 55 | for concealed wiring |
| Pipe HDPE red double-walled | tough | 50 mm | 41.5 mm | Yes | 78.5 rub/m | 44 | for concealed laying |
| Heavy HDPE pipe | heavy | 31 mm | 23.4mm | Yes | from 9.7 rub/m | 55 | hidden gasket |
| Pipe PPL (polypropylene) corrugated | light | 19.7mm | 14.8mm | Yes | from 28 rub/m | 55 | open, concealed gasket |
| Corrugated pipe polyamide | black | 21.2 mm | 16.8mm | No | from 52 rub/m | 68 | open, concealed laying, UV resistant |
| Corrugated pipe polyamide | gray | 21.2 mm | 16.8mm | Yes | from 48 rub/m | 68 | open, hidden gasket |
Expert answers
Benefits of the March cat:
) I'll see what you get here ....)))
Kolyan Kuznetsov:
I know what they do on the accent in this situation, they cut off the corrugation, put a spider and make firmware., cut off the standard exhaust pipe at the engine, weld another, and a spider (splitter) is already cooked to it, and already two plugs come from it
Antagonist
try looking for the original. I'm taking everything here, dig: .exist
Alexander:
pick and boil. Welding will cost you another 500 rubles. True, you will probably have to pay for taking pants. better not take it off yourself, in the service if the bolts break, they themselves will drill and cut the thread. you can also cover it up, only for a day or two. red forces. sealant + cord asbestos + fiberglass on top and bind with a knitting wire
Waldemar:
I got a Toyota today, they just changed it .... I haven't even picked up my car yet... I have the original-36 thousand worth .. they changed it for 20 EURO + 10 for work ... total-1200 rubles ....
Botanist:
Wrap an asbestos cord on top of a self-made clamp and everything is okay.
BorodA:
Yes, if for a while, then bondage from asbotcloth is an option .... And then shoot and look for a domestic analogue ...
Oleg Kushnirina:
such corrugations are sold, they cost about $ 12 here, buy and weld., the sizes are different, this is how they did it on Renault Kango
cat513:
Sir! Firstly, you need to indicate the region, model and year of manufacture of the car. And secondly ... Maybe it's been so long in Australia. But there it is ... Papuans, and here on the Volga I change it in a maximum of an hour!
Olga Gubanova:
Let them lie! ! If the hands have 25-30 minutes .
Olga Voronina:
It is quite possible if there is a queue, but in principle they did it for my brother, everything took from about 1.5 hours
Alena:
Truth! It takes about 2 hours to do it right.
Vladimir Shlyakhtin:
True, they are lying!
Lerych:
During the rally, an hour is given between the stages for car maintenance. During this hour, mechanics manage to replace a lot of things, but replacing the entire muffler takes 10 minutes! So nothing is so impossible…. it all depends on the mechanics!
Sergey Sizoy:
you cut off the pipes with a grinder, grind off the burrs from the inside, and put on the corrugation, only a little longer than it was. tighten with clamps. how long could this take? Well, if you first sit down, think about which of your friends has a grinder? then inspect the place of the proposed repair, measure the length and diameter with a ruler, sit down again to think whether such an algorithm is suitable, then go to a car shop on Saturday, find out that there are no corrugations properly, think about what the hell with it ..? and then think, there is no pipe! , and go to another car shop, buy corrugation there, call on a friend with a grinder, wait out the downpour that has begun. . then when the puddles dry, then crawl under the car, understand that it is terribly inconvenient - to do it without a lift ... in short, YEARS can be spent on this matter ..
Ilya Savin:
If hands grow from where it is necessary. That can be done in an hour
Why do you need a corrugation
The laying of electrical cables and wires in the corrugation is recommended for various reasons:
- When laying in combustible walls (wooden or frame), behind combustible finishes (lining, PVC boards), when attaching to wooden floors - for reasons of fire safety. In this case, non-combustible casings are chosen.
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When laying behind finishing materials - behind lining, drywall, PVC boards, etc. - for security reasons. To make it harder to damage the cable when trying to hang something on the wall. In this case, the most important indicator is the hardness of the shell.
- When laying the cable in a screed or under the floor, for finishing, the corrugation is used for several purposes. Firstly, to protect against squeezing when pouring concrete.Secondly, to be able to change the cable in case of damage without destroying the floor. Third, to protect against damage.
- For outdoor laying, the sheath is needed to protect the cable from atmospheric influences (ultraviolet) and mechanical damage.
- With open laying through the air, a corrugation with a wide temperature range (to withstand heat and frost) and resistance is required. to ultraviolet. If the cable is suspended, reinforcement is also needed to increase the load-bearing capacity.
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When laying underground, water tightness is important, as well as rigidity.
In general, corrugations, even metal ones, are not the best protection against mechanical destruction. One can only hope that, having felt that the drill has failed, it will be possible to stop in time. And in order not to get into the electrical wiring, it is better to have an exact plan for laying it with measurements and binding to the corners. After all, a cable in a corrugation, even under load, is not determined by every wiring detector. So do not forget before pouring the screed, before finishing, take pictures, sketch the distances.
What is a muffler corrugation and why is it needed in the exhaust system
Also, our experts recommend installing them on cars in which the installation of corrugations is not provided for by the standard design, for example, cars of the VAZ family and some models of foreign cars. By doing this, you significantly prolong the "life" of the exhaust system, get rid of vibrations transmitted through the exhaust tract from the engine, and save yourself from the risk of damaging or tearing off the exhaust system in the event of a collision with an obstacle. It is highly desirable to install corrugations on tuned cars with forced engines, because To. due to the high power and increased stroke of the engine on the pillows, the exhaust system is subjected to much greater loads, which leads to its faster failure. Clients often turn to our company with a request to make an exhaust tract for power plants using the engine on various types of fuel (gasoline, diesel, gas), which are installed in private houses, cottages, cottages and special cars in the kung. In this case, we always recommend installing a corrugation in order to eliminate the transmission of vibration from the generator to the walls of the house or the car body.
High-quality corrugations themselves are quite reliable and the main reasons for their failure are mechanical damage, a consequence of a clogged catalyst if it is installed after the corrugations, faulty engine mounts, especially on diesel engines where there is increased engine vibration.
Why do you need a muffler corrugation
This element can be called a kind of fuse, which provides protection for the exhaust system from vibration that occurs during engine operation. It takes on the main load and quite often it is she who fails, thereby saving all the other details, and replacing the corrugations is much cheaper than a complete repair of the entire exhaust system.
In addition, the elastic element in the form of a corrugation allows the power unit to move freely in the longitudinal plane.
As a result, the load is removed from the rest of the body parts, which is important
Video - muffler corrugation in section:
In some cases, the corrugation is placed during the tuning vehicle and allows you to stand out from the surrounding cars. From the standpoint of aesthetics, it does not add beauty to the car, but it protects it from overheating.
The characteristic highlight of the corrugations is tightness, and the ability to bend, shrink and stretch to a certain limit. It can be produced in two versions.
In order to avoid expensive repairs, it is recommended that any motorist at least twice a year put the car in a pit or overpass and fully inspect the entire bottom, including the exhaust system.Thus, it is possible to recognize in advance the shortcomings of the nodes in the form of scratches or cracks and to detect the appearance of corrosion in a timely manner.
Double-braided corrugation is suitable for power units running on gasoline. Along with this, the braid from the inside provides protection for the inner surface from mechanical damage. The braid on the outside is more durable and helps to protect against strong compression or vibrations, which in most cases leads to element failure.
Triple braid corrugation is more rigid and high strength due to the intermediate layer, which is an elastic tube. This detail is suitable for vehicles with both gasoline and diesel engines. In addition, it is relevant for cars that have already overcome more than 100 thousand kilometers.
Along with this, three-layer details are divided into two more types:
- Innerbraid - the inner layer is a stainless steel plate.
- Interlock - the inner layer is made in the form of a braid from the same steel.
Based on this, the first type of Innerbraid corrugation is characterized by a lower price, respectively, has a short service life. Elements like Interlock help noticeably longer, but their price is higher.
Only high-quality corrugations and professional replacement guarantee a long service life.
CALL: 8-831-413-92-96 Perekhodnikova st., 27A (Proletarka) 8-831-415-92-96 Sormovskoe sh.
Why do you need a muffler corrugation?
Many car owners who are thinking of overhauling the exhaust system often ask themselves the questions “What is the muffler corrugation used for?” and “A muffler corrugation, what is it?”. Let's start with the second question, and the answer to it will automatically lead us to an understanding of why this part is installed in the car's exhaust system.
Muffler corrugation, what is it?
The muffler corrugation is a corrugated metal tube, protected from the outside by a braid made of stainless steel. Sometimes there are corrugated designs containing the same braid inside, which allows you to protect the corrugated tube both inside and out, although this version of the part will cost more. At both ends of the corrugation for the muffler, there are tubes that serve to weld (fix) the product to the exhaust system pipeline. If you look at the structure of such a part, it will immediately become clear what the muffler corrugations are for. After all, they have a certain flexibility, which is their main property and brings no small benefit in the exhaust system.
Corrugations can be installed in different places of the exhaust system.
Most common installation locations:
- immediately after the collector (receiving pipe);
- in front of the resonator (often instead of a catalyst);
- in front of the muffler.
And in all cases, such a product will play the same role, but with different accents, which depend on the place of installation.
It is important to note that the corrugation is airtight!
What is the muffler corrugation for?
The muffler corrugation plays several useful roles in the exhaust system of a car.
- reduce and partially compensate for vibrations transmitted from the engine to the exhaust system;
- reduce and partially eliminate vibrations that occur during the movement of the car;
- make the exhaust system more flexible (mobile), which greatly facilitates the installation of silencer components, especially when installing a universal or straight-through exhaust;
- increase the life of exhaust parts and fasteners in it.
Depending on the installation point of the muffler corrugation in the exhaust system, it is there that greater mobility and maximum vibration compensation will be achieved. All of the listed properties indicate that the muffler corrugation can be used as an element of muffler tuning.
Muffler corrugation, which one to choose?
If you decide to buy a muffler corrugation for your car, then choose a product of good quality and a well-known manufacturer.This part is subject to rather large mechanical and thermal loads, so its service life will directly depend on the quality of its manufacture. The corrugation braid must be 
made of high-quality stainless steel, carefully examine the corrugation that you choose, the braid should not contain damage. You can choose double (inner and outer) pleats, or only outer pleats, depending on the amount of money you are willing to spend on that exhaust component.
When buying, you should understand how to choose a muffler corrugation? Here, this part must exactly match your car, or rather the exhaust system of your car.
Here are the parameters that are important to pay attention to when choosing corrugations:
- diameter of connecting pipes;
- the total length of the product;
- braid quality.
Regardless of the car in the exhaust system of which you plan to install a muffler corrugation, in any case, it will be useful. It is put in a stock (basic), universal and straight-through (sports) exhaust.
