What can be used as a place for tow. How to wind flax on a thread: detailed instructions. In addition, plumbing thread has a number of advantages
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As paradoxical as it may sound, most plumbers manage to seal threaded connections... with tow, or, to put it into common language, with flax fibers. Flax with sealant, just flax - the imagination of the workers of the "plumbing field" is limitless. However, this approach cannot be explained otherwise than by inertial thinking. Tow, being a natural fiber, inevitably breaks down over time. The use of tow was justified in the days of ordinary metal pipes, the main method of joining which was welding - and tow was present only at the junction of the pipe and the mixer. The number of threaded connections for metal-plastic pipes is many times greater, and the service life is much longer. As a result, there is a huge probability of leaks in threaded connections after a few years.
To avoid troubles, we recommend that you clarify with the contractors what specific sealing materials they plan to use before starting work. As you already understood, flax and its derivatives are unacceptable - require the use of modern polymer sealing materials, only they guarantee the reliability, tightness and durability of the thread. A small digression: if you urgently need to change the faucet, you don’t want to run for a supply of polymer sealant, and you plan to carry out the work personally, you can use an ordinary thin packaging bag from the nearest supermarket (not paper), simply winding it around the thread. However, let’s return to professional materials: Italian, German, Polish materials, Chinese and naturally domestic brands are quite widely represented on the market. There is not much difference between them.
The main difference between new polymer sealing materials compared to traditional ones is the stability of their properties throughout their entire service life, high reliability, ease of use and tightness of joints. Polymer seals can be divided into two types: pipe winding and plumbing anaerobic sealants. They differ in “form factor” and method of application.
When choosing a material for sealing threads, you should take into account the conditions in which installation will take place (ambient temperature above 15C or below), operating conditions of the connection (heating, hot or cold drinking water, presence of antifreeze in the system), connection materials (metal-to-metal, plastic -metal and also type of metal), accessibility of the connection (easy access or difficult, the need for subsequent access to the connection). To put it simply, for threaded connections that you do not plan to disassemble in the future (for example, heating), it is better to use an anaerobic sealant, but for systems that are periodically disassembled (faucets, showers, water filters, and water supply systems in general) It is better to use pipe winding. However, you can get by with just one type of polymer seal.
How to use a polymer seal? The diagrams for winding and sealant are different, so we will present them sequentially. So, if the choice fell on winding: it is necessary to clean the thread from obvious dirt, for which it is enough to wipe with a rag, then pull the recommended amount of thread out of the box and cut it with a built-in knife, the thread should be wound randomly, crossing the turns of the thread, crosswise (in the middle of the thread, it is advisable to wind several more than at the edges), then use keys to connect the threaded elements as tightly as possible. Connections assembled on threads can be checked for leaks immediately after twisting. Another option is to use FUM tape (tape made of fluoroplastic sealing material) - we wrap it tightly around the thread and cut off the edge, the rest is as described above.
If you decide to use a sealant, then: it is highly advisable to degrease the threads by wiping them with a rag moistened with an alcohol solution, glass cleaning fluid, etc.; Next, we take a brush and carefully coat the threaded grooves, cover with a layer of gel the entire outer and initial turns of the inner surface of the thread in an amount sufficient to fill the threaded gap as a whole. After the composition is applied, it is necessary to twist and unscrew the connection several times without disconnecting the fittings. Running back and forth promotes proper distribution of the compound in the thread and eliminates air inclusions. No twisting force is required; contact of several threaded turns is sufficient for sealing.
Connections assembled on an anaerobic gel at room temperature can withstand low pressure media sufficient to test for leaks after 1 hour. The system can be fully launched within 1 day. Heating the connection with a hairdryer can speed up the sealing process significantly. The main symptom is hardening and decreased transparency of the gel in the thread gap.
The author’s subjective opinion is that pipe winding is somewhat easier to use and saves a lot of time.
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Replacing fum tape
New technologies have long been introduced in plumbing work, and fum tape has replaced winding flax. But there are situations when there is neither winding flax at hand, nor, especially, fum tape. How to get out of this situation, literally, dry? How replace fum tape?
It turns out that we encounter such substitute material at every step today. For replacing fum tape An ordinary plastic bag, in which products are packaged in a store, be it bread, meat, fish or vegetables, is quite suitable. Any products in supermarkets and stores are packaged in such bags, but you should not use rustling dumpling or frozen packaging for these purposes.
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There are 8 comments left on this post.
It’s all so simple, but sometimes there’s an emergency and there’s nothing at hand.
More than once I found myself in situations where nothing was at hand, but I didn’t think of this, thanks for the advice!
I can’t imagine a reliable connection without Tangit. However, something happened. Then yes.
how to replace fum tape
Polyethylene is good advice.
This is an option for an EMERGENCY situation, but it is better to use fum tape. It was, I know.
I don’t argue with you that it’s better, of course, to use fum tape, but when you don’t have it at hand, but you need to get the job done, then this way you can get away with the situation.
Good advice! Sometimes you have to play the role of a brilliant plumber.
Everything ingenious is simple! Thanks, we'll use it.
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What can replace fum tape?
Fum tape can be replaced with flax + Unipak paste. These kits are sold at any plumbing store. The paste is needed to prevent the flax from rotting in contact with water. Previously, this paste was replaced with Surik primer
And also with Tangit Unilok thread
The highest quality connection in critical places is a connection using flax with paste.
Fum tape appeared relatively recently, and before, tow was used with all its might, and even now, when the tape has suddenly run out and you don’t want to go to the store, it’s quite possible to use tow. True, the tow now is not of very good quality (there is too much obvious straw in it), but even in this case, if you use it together with Unipak paste, and in extreme cases with ordinary paint, the connection will be reliable. It should be taken into account that when winding tow together with paint, it will be problematic to unwind such a connection.
You can replace fum tape with simple plumbing flax, because before the advent of fum tape, no one tried to wrap connections with anything other than flax. And to this day, all plumbers prefer linen rather than some kind of tape. Linen is much more reliable and costs much less than these imported bells and whistles.
How to replace fum tape at home
When choosing FUM tape or flax strands for thread sealing, it is wise to consider the third option - modern and more convenient. However, if in practice the question has become tough - which is better, fum tape or tow - then the answer will depend on several factors: what thread is sealed, in what system, where, what is its peculiarity. Let's talk today about the advantages and disadvantages of these classic sealants and analyze their scope of application.
Tow and plumbing - how it works
Plumbing flax, tow, flax strands - all these are names for the same thing. Tow flax is a sealant used for household needs for more than 50 years. They compacted flax in the USSR, and they do it in the new Russia as well. Flax was not affected by any cataclysms: the transition to a market economy, the appearance of metal-plastic on the market, the demand for innovative sealants. Perhaps it will survive flax and renovation.
There is an opinion among ordinary people that the sealing of threads on linen, if not last century, certainly smells like mothballs. There were cases when, upon seeing tow in the hands of a master, customers widened their eyes and advised not to do this again. They say there are better materials in stores. However, professionals know that they need to work with any sealant, because the need for it may arise unexpectedly.
Linen is a skein in the form of a braid, from which the required length is cut to seal the thread of a specific diameter. It is difficult to calculate the exact amount of flax for the mixture. They do this by eye, based on previous experience. We can say for sure that linen is suitable for carving in any condition: dirty, wet or old. Those. For systems that have seen the world, for example, in old houses, linen is irreplaceable.
Tow for pipes is also popular due to its low price. The cost of 100 grams of sanitary flax starts from 50 rubles and depends on the quality of the material. However, not all so simple. By itself, a strand of flax is useless. You can't just wind flax and assemble the joint. Additional impregnation is required to enhance the sealing properties. Impregnation paste is applied on top of the flax wound on the thread and protects against corrosion, swelling, and rotting. Together with impregnation, the price of flax has already reached 150 rubles per 100 grams.
The usual form of flax production - in braids - causes complaints from consumers. Flax fibers get in the way, cling to clothes, stick to the impregnation and spoil the appearance of the joint. Some manufacturers today produce flax in a bobbin. A reel costs more than 200 rubles for 80-100 grams. Which, of course, reduces talk about the availability of flax to nothing.
The two main disadvantages of flax are its nature and application technology. Flax is organic, plant material. And how plant material rots or decays over time. Impregnated tow lasts longer than the one without treatment, but still the compound on flax has a very specific and very short shelf life - 3-5 years. Such connections should be regularly inspected and checked for leaks.
When it comes to application, linen requires a trained hand and experience. First, the difficulty lies in the exact amount of linen tape. Secondly, they wind it strictly along the thread, getting into each turn. Thirdly, the end of the strand is also secured in a special way at the beginning of the thread - so that when twisted it does not roll or slip. To secure flax to the threads, notches are specially made or fittings with ready-made, factory-made notches are chosen. It is not recommended to use flax on plastic, metal-plastic, or thin-walled threads. In general, with a wide variety of sealants on the market, the use of flax raises a lot of questions.
What can be used instead of tow? Synthetic sealants. They last longer and are less hassle. Let's look at an example of such a sealant - FUM tape.
FUM tape is a synthetic sealant based on fluoroplastic. As the name implies, it is a tape produced in a reel. The cost varies from 30 to 160 rubles and above and depends on the quality of the material, width and thickness. To seal the thread, the FUM is selected individually, depending on the diameter.
FUM tape, unlike flax, is most effective on plastic pipes and small threads. Many craftsmen note that they use FUM for diameters no larger than 1 inch, because... Otherwise, tape consumption cannot be called economical.
To apply FUM tape, it is first stretched into a thread, wound onto each thread several times, and then the entire width of the tape is applied to the thread and secured. They begin to assemble the connection and do it very carefully so that the tape does not get lost or break. If you have never had to deal with this kind of sealant before, we advise you to practice “idle” - try the winding a couple of times, and then get to work. By the way, this way you will quickly understand how to replace tow with ribbon or some other material.
The moment of choice of tape is important. If flax is judged by its appearance, then FUM should be tried. High-quality tape stretches well and does not tear. But you can understand this by already purchasing the sealant - on site. It is unlikely that a store or market will allow you to test a product without paying.
Besides plastic and thin-walled threads, where else is fum tape relevant?
For gas supply systems and non-standard liquid media
For high temperature systems
For repairing rubber rings and gaskets in faucets, shower heads
What is important to know when buying tape?
Ineffective in heating systems because cannot withstand multidirectional loads and pressure changes
Demanding on the quality of the thread - before winding, the thread is checked for the presence of burrs, notches, and roughness that can damage the tape
It is capricious and shows results only in the hands of a professional - to work with FUM tape, you need experience not only in application, but also in choosing a good material
FUM tape or tow? These sealants have a lot in common - low price, popularity in the market and in the professional environment, availability in any region. But they also have serious disadvantages in common: not the most convenient application, limited scope of application, high consumption. If there is a large amount of work to be done - installation of communications in a private house, installation of equipment and plumbing - it is better to choose the latest generation of sealants: polymer thread, anaerobic gel. With them you will do everything 3 times faster due to the high speed of application and instant sealing.
anaerobic sealants as an alternative to traditional sealants
The difference between fum tape and electrical tape?
In this article, as in the video, I will try to break down a rather complex and interesting topic regarding the best way to pack threads. Apart from a few less common thread sealers that many have never heard of, there are three main competitors on the market for the hearts of plumbers and anyone who has ever threaded their home. These are LINEN, FUM-TAPE and THREAD.
In Soviet times, such a question did not arise, since the Soviet industry simply did not offer anything else besides flax. Now, for many years, disputes between supporters of the “classical” approach, that is, adherents of flax and their “more modern” colleagues who use fum tape and plumbing thread, have not subsided. Which one is right?
The fact is that among these three sealing materials there is no clear favorite and outright outsider. Each seal is good in its own way, and also has its negative sides. Let's sort them out.
Plumbing linen
Positive sides of flax:
- Absolutely reliable connections. Centuries of experience in using this seal speaks of its absolute reliability. If you wind the flax onto the thread correctly, then you don’t need to worry about the tightness.
- Low price. This is the cheapest sealant; the ratio of the number of wound threads to the money spent is clearly in favor of flax.
- Possibility of adjustment. The connection between flax and paste, even after a few years, can be slightly adjusted, tightened, unscrewed a little, but no more than 45 degrees. In this case, the tightness will not be broken.
Negative sides of flax:
- The speed of working with flax is very low.
Seals: flax, FUM tape, thread, sealants
In the time spent on one winding with flax, you can wind several threads with thread or a fusel. If a site requires tens or hundreds of threads to be packed, this can easily result in a half-day time difference. And time is money. If you need to wind up one or two threads, then this point is not important.
- Dirty hands. The fact is that flax is used in conjunction with sealing paste. Read more about pasta in this article. This paste is very soiled and you need to wipe your hands after each use.
Fum tape
Positive aspects of fum tape:
- Speed of work. Winding the threads with fum tape is the fastest option.
Negative sides of fum tape:
- Requirement for experience. Despite the apparent simplicity of using fum tape, it is very insidious and requires experience and knowledge in winding. A beginner will most likely not be able to wind it correctly the first time. Also, for different types of threads there are different types of fum tape, differing in width and thickness, this also needs to be taken into account.
- Unreliability. People will argue with me, but in my opinion, the connections on the fum tape are the most unreliable. I think that this fact is mostly caused by the reasons from point 1.
- Impossibility of adjustment. If, during operation or repair of pipelines and connections, the connection on the fum tape is slightly damaged, moved, or twisted, it will inevitably leak. Which will not happen when using flax with paste and thread.
Plumbing thread
Positive aspects of the thread:
- Thread is good for everyone. This is the most modern material with few disadvantages.
- Available for beginners. Even someone who has never packed threads in their life, after reading the instructions or watching a video on YouTube, will be able to seal the threads tightly the first time using thread. She forgives mistakes and handles very well.
- The possibility of adjustment is very large. A threaded connection wound with thread can be adjusted up to 180 degrees without loss of tightness.
Negative properties of the thread:
- Price. Thread is a very expensive sealant. For home use when winding one or two threads per year, this is not so important. For a professional who winds dozens of threads a day, this can be very expensive.
- The need for a knife. The thread is usually very strong and cannot be broken by hand. You should always have a knife or scissors at hand, which affects the winding time.
Conclusions:
- A thread- for home use and for those professionals who do not save money.
- Linen- for professional use.
- Fum tape- for temporary connections.
Dear master! Is it possible to use penofol instead of tow, flax, and jute in the construction of a house made of timber? At first glance, the advantages are obvious. Penofol is elastic, waterproof, windproof, good insulation, easy to use. And why not use it as a spacer between the beams? And what are the contraindications? Thank you in advance.
Evgeny Vladimirovich, Pereslavl district, Krasnogor village.
Hello, Evgeny Vladimirovich from Krasnogor!
Penofol is an insulation material made from two main components, namely polyethylene foam and aluminum foil. Whatever type, type or brand it is.
Polyethylene foam is not a natural material and, despite the almost unanimous statements of manufacturers and sellers about its complete environmental friendliness, in my opinion, it is not.
As an example, I always cite the well-known dust (DDT), full nameethane, which at one time was advertised as completely harmless. I remember how they generously sprinkled clothes in closets to prevent moths, how they diluted water and then watered the greens in the beds in order to destroy all sorts of bad agricultural pests. In short, it was a panacea for all, or almost all, troubles and misfortunes.
A little over fifty years have passed and I don’t remember this substance being used so widely anywhere. It is so harmful to the human body and capable of accumulating in it that it is used only in the most extreme cases to combat mass epidemics. When “I don’t care about fat, I wish I could live.”
Neither you, nor I, nor anyone else can say with 100% certainty in about twenty years or so that polytilene, which does not completely decompose during the entire time it was produced, does not have bad properties that are not currently known.
I am not a supporter of rejecting technical progress when using ever newer materials in construction, but I still give preference to the old ones, tested for many decades, or even hundreds of years.
With the correct construction technology, tow (linen, jute, hemp) is the most durable and environmentally friendly cushioning material-insulation between wooden crowns in residential construction. At the same time, they must be completely dry (as well as the wood of logs, beams, etc.), and on the outside, on the street side, ideally they should be covered with drying oil or other types of coatings that protect the insulation from absorbing atmospheric moisture.
Yes, sometimes it is used as insulation and when coven-makers do not have normal tow on hand. But I am not aware of any cases of using penofol to fill the inter-crown space.
In my opinion, this is also due to another factor. Have you noticed that in both stone and wooden houses, the waterproofing layer is placed only on the base of the foundation. That is, further from this waterproofing layer there are solid walls, creating an array. Why is this done? Then, even with local, concentrated ingress of excess moisture onto any section of the wall, this moisture is not retained in one place, but is redistributed in all directions. And over time, this moisture evaporates not from a small, but from a larger area. As a result, there is no rotting of the wood and destruction of the masonry.
If you put penofol, then layers of aluminum foil through each crown will not allow moisture that has fallen on one log (or wooden beam) to penetrate to others and be redistributed with faster further drying from a large surface area. With all the ensuing consequences.
But this is more from the realm of theory.
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Linen - separately, impregnation - separately...
Even modern editions of SNiPs, developed in the 80s of the last century, do not exclude from circulation such thread sealant as flax strand; it is also often called “plumbing tow”. However, GOSTs require flax to be impregnated with red lead on drying oil. Modern paints do not contain the previous amount of lead, which protected threaded connections from corrosion, and lead lead on drying oil is a composite product, the components of which still have to be looked for. In addition, winding flax or plumbing tow requires a certain amount. Incorrectly wound plumbing linen strand or tow poorly impregnated (especially with the wrong product) will not create the required level of protection for the plumbing connection. Assembly on linen without impregnation is prohibited; plumbing tow must be impregnated! Impregnation with plumbing silicone thread sealant is also prohibited. What are the consequences?
– Early aging of the thread: due to the fact that the tow is impregnated with plumbing thread sealant, wear or corrosion of metal parts occurs.
- Leaks.
– Rupture of connection under pressure.
But this type of sealing also has advantages:
– When tow or plumbing flax is impregnated with a special paste and experienced handling of flax, the connection will last for quite a long time.
– - cheap and widely available material for sealing threads. Tow can be found in any specialized plumbing store or market.
Flax is an environmentally friendly plant product that does not require certification, so connections on flax strands can be used to seal drinking water supply pipelines. Provided that the tow impregnation is also safe for use in sanitary conditions...
FUM-ido - plumbing code
Instead of flax or plumbing tow, a more modern thread sealant is often used -. Many people ask the question: what is better, fum tape or tow? The quality of the connection on the fum tape largely depends on the quality of the tape itself, so many craftsmen who have unsuccessfully tried to find a decent fum tape more than once prefer to use exclusively flax or tow. Cheap, low-quality winding does not stretch well and breaks easily. Even for an experienced craftsman, such a thread sealant will cause a lot of trouble. Of course, in this case, he will not have a question about what is better for him to use: fum tape or tow; most likely, he will prefer a more traditional and proven sealant. Calm, just calm...
When handling fum tape, experience with such a sealant is required, as well as with flax or plumbing tow. The correct winding of the fum tape or the thickness of the layer is selected experimentally, which is also similar to the technology for using tow. Therefore, a beginner will have to spend a lot of time sealing with FUM tape. In addition, when assembling assemblies that require positioning of parts relative to each other, a problem of inconsistency may arise, and unscrewing the fum connection means starting the whole work all over again.
– Fum tape is not used in heating systems due to the cold flow properties of fluoroplastic. Here fum tape is inferior to flax or tow.
– Does not withstand vibration loads, therefore this thread sealant is not used as a seal for pipelines subject to vibration during operation. Both tape and tow occupy the same positions here.
The advantage of this type of sealing material is its high chemical resistance. This allows the use of fum in aggressive environments and in pure oxygen environments.
The pipe will not “make you nervous”
Flax and fum tape have been used in plumbing work for several decades, so they can already be called “old-fashioned.” It is worth saying that each master decides for himself whether fum tape or the old, proven tow is better for him. An alternative to such “old-fashioned” methods using flax and fum tape is a modern method of sealing - plumbing thread impregnated with a special sealing compound. As you know, winding plumbing thread is much more pleasant and easier than using flax or fum tape for these purposes.
In addition, plumbing thread has a number of advantages:
– The synthetic fibers of this sealant (plumbing threads) do not dry out from high temperatures and do not swell under the influence of moisture during plumbing work.
– Even during production, the sanitary thread is impregnated with the optimal amount of sealing compound, so you can be sure that it performs its protective function to the fullest.
– There is no need to clean the threads from sealant (from threads) in case of contamination during plumbing work.
– The material does not require special handling skills. The Record plumbing thread is easily and quickly wound in 10-15 turns, crossing the threaded projections crosswise.
– The thread can withstand pressure 2-3 times higher than plumbing threaded connections on flax.
– Forms quick-disconnect connections.
By the way, assembling a knot using plumbing thread is also several times faster than using flax, which is very important in an emergency situation, and is simply more convenient.
How to wind plumbing thread?
Probably, everyone who picks up a winding machine for the first time asks the question: how to wind plumbing thread? Everything is very simple! To wind a plumbing thread you do not need to put in a lot of effort, as is inherent in winding a thread with flax and paste. This does not require special skills or labor. Even an inexperienced craftsman will adapt after the first time and will wind the plumbing thread on the next threaded connection without any problems the next time.
Here is a small instruction that will help you figure out the question: how to wind plumbing thread.
![](https://i1.wp.com/re-st.ru/site/assets/files/1320/uplotnit_nit_info.780x0-is.jpg)
The first turn of thread is fixed closer to the edge of the thread, and the rest is applied in a cross pattern. Upon completion of winding, the connection is twisted. Thus, the wound plumbing thread will reliably seal the threaded connection.
We looked at the three most popular winding methods: linen strand, fum tape and synthetic thread. All of them have the right to use, since in each specific case it is necessary to take into account a number of features of the systems being sealed.
Linen strand | Fum tape | Thread "Record" | |
---|---|---|---|
Price | 80-100 rub./100 g. plus impregnation | 200 rub./50 linear m | 245 RUR/50 linear m |
Ease of use | Experience required | Experience required | No experience required |
conditions of use | Cannot withstand high pressure, requires impregnation, biodegradable | Do not use in conditions of elevated temperatures, does not decompose | Universal material according to the conditions of use, does not decompose |
Resistance to aggressive environments | − | + | + |
Vibration resistance | Average | Very low | High |
Cleanliness and quality of carving | With restrictions | Demanding | Unpretentious |
Preparation of material | Requires impregnation treatment | Ready to use | Ready to use |
Working temperature | Up to +150 | From °C -50 to +120 °C | From °C -60 to +150 °C |
Connection life | From several months to 5 years | Up to 13 years old | More than 15 years |
The favorite in terms of price is, of course, flax or sanitary tow. His motto could be the slogan: “Cheap and cheerful.” Being a rather demanding and not universal material, it can still claim to be a temporary thread sealant, which it is advisable to soon replace with a more modern one. However, the price of this sealing method may vary depending on the impregnation material (paint, paste, sealant, etc.). Fum tape with an average price of 3.5 rubles/linear. m is a less reliable method of sealing than synthetic thread (plumbing). It will work well for sealing cold “quiet” pipelines (without temperature fluctuations and vibrations).
The Record winding, which is a plumbing thread, is perhaps the best sealing option of all those presented. This is the most universal sealant, unpretentious and durable for plumbing work, which fully justifies its price.
However, if you need a truly durable and reliable connection, universal to all aggressive environments, what to choose? When choosing a sealant, it is also important to remember that in some cases it is better to seek help from an anaerobic sealant. For example, all windings - flax, fum and plumbing thread - are well suited for notched or roughly cut threads, but not suitable for smooth threads or for conical threads - they slip off. European threads are often found "smooth". Here, winding or thread will no longer help; you need plumbing sealant.
A reliable connection is ensured by modern anaerobic sealants, which are easy to use and much more economical than other sealing methods per fitting. You can purchase such sealants from us directly from the manufacturer or from the nearest store, the address of which can be found in the “” section.