DIY stainless steel thermos lid repair

The principle of the thermos lid is very simple. You press a button, the valve opens and the contents of the inclined thermos are poured through the opening into another container. The push-button is returned to its place by means of an internal valve spring.

Some manufacturers complicate thermos button deviceby adding small details to the design that allow the button to work more softly, to ensure a better tightness of the lid. But the more parts there are in the assembly, the higher the likelihood of failure of any little thing, which will affect the operation of the valve as a whole.

The lid valve also has a number of disadvantages, which are caused by possible clogging of the overflow, accumulation of deposits and, accordingly, the appearance of unpleasant odors.

Thermos users get out of the situation in different ways. Someone at a chosen frequency cleans the lid of a thermos with a button, soaking the device in a solution of baking soda, others load the lid into the dishwasher, and others completely disassemble the structure and mechanically clean each component part.

All bonnet valve parts are made of food grade plastic. On the one hand, you get a guarantee that no harmful substances will get into the liquid, but on the other hand, the strength of the plastic is low, the valve mechanism and the button wear out quickly.

In case of damage that is not associated with deformation of the valve and it is only necessary to restore the connection of the structure or install the dropped part in place, the repair can be done by hand. Therefore, if the button in the thermos has broken, do not rush to buy a new one, but try to disassemble the cover using our advice.

Consider three options for a cover with a button. The first design is the simplest, with a minimum of details and everything is intuitive.

Here, the repair of the thermos button will consist in the usual disassembly and cleaning of the valve from deposits:

1. We unscrew the pressure ring counterclockwise. We apply enough force, but without the use of locksmith tools. The ring is rather fragile and if there are signs of sticking of the part, then soak the lid in hot water for a couple of minutes.
2. We take out the valve from the body.
3. We push out the valve mechanism to do further disassembly.
4. We get three large fragments of the mechanism, it remains to get to the spring, button and other auxiliary parts.
5. We increase the set of parts during further disassembly of the button itself (usually it is fixed with fasteners).
6. Carefully push out the valve stem so as not to damage the retaining ring, we still need it for the further assembly of the cover.

And here we have in front of us all the details that should be washed from deposits. As we can see, there is practically nothing to break here, only if the spring or retaining ring does not burst from wear. These replacement parts can be picked from other machines or purchased from a hardware store.

VIDEO INSTRUCTION

The next version of the cover is complicated by the presence of a second button, but even here the manufacturers have provided for the possibility of disassembly. Rather, they did not begin to seal the mechanism, as is the case when the marketing specialists of companies want to sell as many products as possible.

1. In this case, pry off the cover with a thin metal blade or other object.
2. The device has hidden latches that can be damaged if you manipulate it too sharply. Be careful.
3. As soon as you remove the cover, all parts will be freely available. To make reassembly easy, we advise you to take a photo of the assembled parts.

And that's why it was necessary to clean the valve.These are deposits that have accumulated over a year of operation of the thermos. Follow these simple rules, and your health will be completely safe, and the thermos will last for many years.

Faced a similar problem.

I asked my spouse to sew a cover.

The inside of the cover is made of flannel fabric.

Outside - from black leatherette.

Between these “shells” I placed a “insulation” made of cut-to-size parts of an old gymnastic rug.

The upper edging of the cover is made of denim, inside which a cord is threaded to tighten the cover.

I have been using it on winter fishing for over 10 years.

It keeps the temperature perfectly and does not rattle in the backpack.

Protects the thermos body from damage.

Drill at least two holes with a diameter of 3 - 5 mm in the outer part of the thermos body and blow out the polyurethane foam into them. The foam will fill the voids and since it is a good heat insulator it will retain heat well.

There are several options to repair an all-metal Chinese thermos:

First, by opening the lower cover of the upper shell, get to the nipple and restore the vacuum by pumping out air with a powerful compressor. I will say right away that not every household compressor can do this, then it will be necessary to flatten and seal the nipple in order to maintain the vacuum in the inner flask of the thermos. This is the most efficient repair method.

The second way is to open the bottom cover of the case, cut out the bottom and, having selected the required size for a thermos flask, simply insert it inside the non-working one. Then fix it there with polyurethane foam and close the housing cover. This option is also quite effective and a thermos with a new flask will still serve.

The third and most ineffective way is, by opening the housing cover, remove the nipple and through the resulting hole fill the entire space between the walls of the housing with something insulating, such as rubbed foam or cork. But after such a repair, it will be possible to store only cool drinks or water in it, but hot tea will cool down very quickly, so the thermos will almost completely lose its properties.

In general, there are several repair options - choose, in any case, you do not need to throw out a stainless steel thermos, its parts can be used in everyday life, since food stainless steel is a high-quality and expensive material, from which it will be possible to make all sorts of almost eternal containers (cups, mortars, flasks , vases, ashtrays, etc.).

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Dimon42

Registered: 03/12/09
Posts: 3626
Location: Vladivostok Balyaeva

Edited by Dimon42 (30/11/11 05:29 PM)

ovv

Registered: 02/01/10
Posts: 191
Location: Ussuriysk

Dimon42

Registered: 03/12/09
Posts: 3626
Location: Vladivostok Balyaeva

ovv

Registered: 02/01/10
Posts: 191
Location: Ussuriysk

Turbiner

Registered: 13/02/09
Posts: 706
Location: Vladivostok

teletubbie

fisherman

Registered: 15/11/04
Posts: 11060
Location: Vladivostok

Dimon42

Registered: 03/12/09
Posts: 3626
Location: Vladivostok Balyaeva

In response to:
Check the sealing gum on the bottom of the plug before discarding. And if she cranks - replace it.

Chabach

Registered: 17/01/10
Posts: 1165
Location: Vladivostok Churkin

LOTOS

Registered: 11/01/11
Posts: 1959
Location: SPASSK-DALNIY

In response to:
a Chinese liter thermos, a metal flask, the space between the flask and the body was filled with construction foam, the cooling time of the tea doubled.

Has the body not blown up? Foam is a harsh thing. Increases in volume at times.

teletubbie

fisherman

Registered: 15/11/04
Posts: 11060
Location: Vladivostok

In response to:
There is foam that does not increase in volume when solidified.

poseidon2

Registered: 23/06/08
Posts: 11051
Location: o. Russkiy

In response to:
In response to:
There is foam that does not increase in volume when solidified.

in a beer mug does not expand when solidified

baranovsk

Registered: 23/12/10
Posts: 1252
Location: Vladivostok

In response to:
From the old thermal underwear I sewed a type of cover, I put a thermos into the sleeve cut off from the "fur coat", then into this cover, boiling water on ice until evening, after a day - normal tea, and then it becomes cold.

Perhaps more effective will be a cover made of a tourist rug (it can be made of neoprene, if accidentally lying around). It is possible from construction insulation (porous, sold in rolls), but it is flimsy for wear.

LOTOS

Registered: 11/01/11
Posts: 1959
Location: SPASSK-DALNIY

LOTOS

Registered: 11/01/11
Posts: 1959
Location: SPASSK-DALNIY

LOTOS

Registered: 11/01/11
Posts: 1959
Location: SPASSK-DALNIY

In response to:
Can you tell us more about the process of removing the plastic bottom?

here is the finished device .. but I didn’t want to shoot, but it was scrolling .. I cut it off slightly with a nutcase, I took it off when I put it in place, glued the cut and along the perimeter of the electrical tape .. although I think if I lowered the bottom into boiling water, I would take it off without an incision

KIKO

Registered: 11/03/10
Posts: 2445

baranovsk

Registered: 23/12/10
Posts: 1252
Location: Vladivostok

Edited by baranovsk (05/12/11 01:47 PM)

Dimon42

Registered: 03/12/09
Posts: 3626
Location: Vladivostok Balyaeva

In response to:
Dima, I heard that you can't pour boiling water under a gum (cork) in a thermos. It can blow up a little and micro cracks will appear. And the KIRDYK thermos.

And so it was, he just did not have time to instruct the person.

Dimon42

Registered: 03/12/09
Posts: 3626
Location: Vladivostok Balyaeva

In response to:
You don't need to go to the trash heap! I had such a case, and since the thermos was very dear as a memory of a good person, I did the following:
Flip and drill 4 holes through 90 degrees (large)
Between them are small 2-3 pieces
You drive a foam sealant into the big ones, so that from the small ones you can climb
You put the bottom up for a couple of days near the battery
You cut off what has come out
Keeps you warm even better!

I tried to remove the bottom cover, but there is only access to the spout, and there is no space between the flask and the walls of the body, the edge is seamed on the machine. I understand that you need to drill the flask (first) ?.

Edited by Dimon42 (06/12/11 11:49 AM)

teletubbie

fisherman

Registered: 15/11/04
Posts: 11060
Location: Vladivostok

In response to:
I bought a second metal thermos in the Freken Bock store, so as not to carry my fisherman there when I was going fishing at my dacha. It costs 1000 rubles, yesterday I took it for a fishing trip, for testing - as a result, by the end of the day - the water is slightly warm, the thermos is new, the lid fits snugly, so drill and froth?

baranovsk

Registered: 23/12/10
Posts: 1252
Location: Vladivostok

Edited by baranovsk (06/12/11 05:20 PM)

briz

Registered: 18/05/11
Posts: 1154
Location: Vladivostok

In response to:
As for China, you are wrong, in 2003 you took a Chinese thermos, so it is still normal, boiling water all day, but which you bought now, it does not hold. I will walk with the old one, I just stopped satisfied with the volume, the liter is not enough for the whole day. And maybe who knows where the Chinese thermos are? In my opinion, now everything is Chinese. In the spring I bought a cool lamp in Amsterdam, and brought it home, began to consider it - made in PRC / True, it works and looks like normal

In the Eldorado thermos of the TERMOS company, I have a brown metallic, keeps boiling water on the ice for a day, the second is hot, the third has not been tried. The main thing is that the cork is not a machine, but twisted.

Made in China. The price is about 2000 rubles.

Edited by briz (06/12/11 07:19 PM)

Yashin

Registered: 28/11/10
Posts: 619
Location: Ugolnaya station

briz

Registered: 18/05/11
Posts: 1154
Location: Vladivostok

KIKO

Registered: 11/03/10
Posts: 2445

baranovsk

Registered: 23/12/10
Posts: 1252
Location: Vladivostok

Sorry, if not in that section. I have a Biostal thermos. The valve button started to sink in. It opens, but it is problematic to close, it doesn’t snap back (the red one should have gone up). Maybe someone disassembled this miracle device. And then suddenly I’ll break it, sorry. I’ll take off the photos tomorrow.

Try to keep it in warm water for a long time (it helped me, though I have a thermos from another office)

I am afraid that when you do disassemble this valve, you will be shocked by the “virgin purity” of its insides.

It was with such a thermos that I did not deal, but I had to disassemble the Chinese valves - there are 15 pieces of parts there, although it looks simple
To begin with, hold the side edges of the plug with one hand, and with the palm of the other hand resting on top, where the button is, try to unscrew the upper part of the valve in a counterclockwise motion. It will be easier to figure it out further.

Along the way, a question, sorry. If there are different brands of thermos with valves, then all of them (thermos) do not keep heat well? Mine for 1.5 liters is enough for 2 hours, then the water is warm.

Most thermoses keep the temperature normally. If it does not hold metal, then there can be two reasons: 1-violation of the vacuum between the walls of the flasks. Those. air got there. 2-inaccurate arrangement of the flasks among themselves, it is possible for the walls of the inner to come into contact with the outer. But this was a very long time ago, when the technology of metal flasks was just being developed. This was the case with Ashinskiy and Samara thermos flasks in the 90s.

Thank you. Thermos brand Vitesse. I did not keep warm from the very beginning, it turns out-a marriage. Previously, there was a Tourist of 1.5 liters, they were very pleased with it. Unfortunately, it was lost by chance. The new one costs 800 rubles.

Cardanoff wrote:
Sorry, if not in that section. I have a Biostal thermos. The valve button started to sink in. It opens, but it is problematic to close, it doesn’t snap back (the red one should have gone up). Maybe someone disassembled this miracle device. And then suddenly I’ll break it, sorry. I’ll take off the photos tomorrow.

maybe someone will come in handy
faced a similar problem, the red ring did not snap back
the valve is disassembled like this - you need to pry (and not twist) the black ring from above with a sharp knife
you need to make a good effort, but the lid is strong - it will not break
minimum parts inside, nothing complicated
I didn't see any pornography inside, it's just that all the details were in the raid
I washed everything, put it back together
it worked like new

PS The thermos was bought back in 2007, but after 2010 it was used little, the problem with the valve was only just now.

Cardanoff wrote:
Sorry, if not in that section. I have a Biostal thermos. The valve button started to sink in. It opens, but it is problematic to close, it doesn’t snap back (the red one should have gone up). Maybe someone disassembled this miracle device. And then suddenly I’ll break it, sorry. I’ll take off the photos tomorrow.

maybe someone will come in handy
faced a similar problem, the red ring did not snap back
the valve is disassembled like this - you need to pry (and not twist) the black ring from above with a sharp knife
you need to make a good effort, but the lid is strong - it will not break
minimum parts inside, nothing complicated
I didn't see any pornography inside, it's just that all the details were in the raid
I washed everything, put it back together
it worked like new

PS The thermos was bought back in 2007, but after 2010 it was used little, the problem with the valve was only just now.

Thank you, perovsky, and I disassembled the mechanism, like in a fountain pen, there was a molding burr on the orange sleeve, cleaned with the same knife that I opened, assembled, everything works, nothing sticks, biostal thermos.

Which companies can you trust so that, as a result of use, the question does not arise why the thermos does not keep warm?

Good afternoon, dear readers of my blog! I am glad to share interesting information again and today we will try to figure out together why the thermos does not keep warm and what to do at the same time.

Several of my acquaintances complained that they were disappointed with the thermal dishes of well-known companies - they say that they have been using it for several months, and the heat almost does not hold on. Assuming that such a problem may await me in the future, I decided to take preventive measures. It turned out that the trouble can be corrected, but it is better not to allow it. However, first things first.

There was little information on the Internet - only complaints and assumptions. But there are practically no suggestions for solving the problem. Then I began to interview my acquaintances who had such dishes. Everyone noted that at first the thermos did an excellent job with its direct duties and only after a while it stopped retaining heat. At first, I relied on my assumptions, which were partially justified.

In my opinion, poor thermal insulation can be caused by:

From everything I saw, I concluded: a thermos, even completely metal, is a thing that requires delicate use. Drops, impacts, shocks can lead not only to damage to the glass bulb, but also to the disappearance of the vacuum and cracks in the valve plug.

Usually, in such cases, there is no question of what to do - of course, buy a new thermos. So I thought until recently.

But some of my friends came up creatively to solving the problem and this is what they came up with.

A stubborn acquaintance of mine did a radical, forever - as he suggests - solving the problem with the vacuum. He simply filled the space between the walls of the inner and outer cylinders with polyurethane foam. How right he was about the durability of the thermos after such a repair - time will tell. But I found this method amusing. I'll have to try it on inexpensive dishes. Anyway, now my friend's thermos is not so afraid of falling.

So far, I have not experimented, but tried to find out in advance which thermos keeps heat better - so as not to get into trouble when advising or buying such dishes as a gift.

In order to fully answer the question of how long food and drinks should remain hot in a thermos vessel, several nuances must be taken into account.

• Flask material. Traditionally, it is believed that it is in thermo glass that heat is retained longer. This is 50% true, since the glass has less heat transfer + the silver coating plays a role.
• The remaining 50% of the efficiency of a thermos is based on vacuum. And if the model is made of stainless steel, then everything is 100%. So, first of all, you need to make sure that the vessel is completely sealed and the vacuum is not broken.
• The size of the vessel also plays an important role - the larger the volume, the slower the heat will leave it. But this item is relevant, provided that the thermos is filled to the top.
• Models in the form of a siphon - with a pump - keep drinks hot for no longer than 6 hours. This is obvious, because their cork is not 100% tight.

Summing up all the facts, I came to the conclusion that thermoses of famous brands keep the temperature best of all, and it does not matter whether their glass or metal flasks. The main thing is a high-quality vacuum. First, a popular manufacturer will not risk its reputation and make a low-grade product. Secondly, by purchasing branded thermal dishes, you can always be sure that a defective model will be exchanged for you at any time, since some manufacturers give a guarantee for their products up to 100 years. For example, Stanley (USA). But this is possible only if you buy the product directly from the official representatives of the company or the manufacturer itself.

I monitored the Russian market in search of the best brand and today it is:

1. "Amet" and "Biostal", made in Russia. These firms have been familiar to the domestic manufacturer for more than a dozen years. We can say that this is an affordable quality, time-tested. The advantage of Russian brands is that they are not counterfeited, and you can always find the full address of the company on the box.
2. The famous Thermos brand for 110 years. Concerns of the brand are located in England, Canada and the USA. But at the moment, the manufacturer has moved its factories to China. Do not be afraid of the inscription "Made in China", the main thing is that the coordinates of the manufacturer are indicated.
3. The German brand LaPLAYA has fully earned its trust - today in Russia they are produced only by one official distributor company "Cold Technologies 2000".

Thermoses, which of the listed companies best keep warmth is hard to say, but customer reviews are only positive.

Never buy a thermos on the market, on hand or in metro passages - no one is responsible for the quality of goods in such places. Let's educate ourselves together, see you soon!

If you want to keep up to date, I am on instagram, where I post new articles that appear on the site.

Thank you for your attention! Best regards, Rostislav Kuzmin.

If you notice that tea or coffee from a thermos does not smell very pleasantly (some kind of dampness or something else, something so unpleasant), then do not rush to throw away the product right away. You can get rid of this problem by simply cleaning the cover with a button. This element, if not cared for regularly, is a real breeding ground for bacteria. After all, a sediment from coffee, tea leaves and other particles are stuffed into the button mechanism, which begin to rot and decompose. The result is that proverbial musty smell. In some cases, the plug simply breaks down and ceases to perform its functions. All these problems require disassembling the cover for parts for examination for breakages and for cleaning.

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Surely you are thinking: “What if you just boil the cork in boiling water with vinegar or soak it in a soda solution? Maybe this will be enough to solve the problem? " No, my friends! Disassembly is necessary! How do you remove small particles that are stuck in the lid parts? Digestion won't help here. You will have to clean every detail, every spring, and only then the result will be worthy.

Where to start: unscrew the pressure ring at the base and take out the cork. Next, we take out the button from the case and deal with its mechanism: we carefully lay out all the parts on the surface and examine for damage. To avoid damaging the retaining ring, carefully push out the valve button.

We disassemble a little of all the components and prepare a solution for cleaning. It will consist of baking soda, water and detergent. It is necessary to fill the parts with this liquid and let them stand for an hour. After that, check again for the presence of obvious deposits and extraneous elements. If any are found, then it is worth carefully, using a miniature brush, to clean them. Next, we dry all the parts and assemble the cover, returning it to its original position.

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A few tips and tricks for the care of the thermos lid:

• Perform this cleaning and inspection at least every two months to prevent damage.
• Do not drop or hit the lid area, and the whole thermos in general. This is a very fragile product that does not tolerate intense mechanical stress.
• Do not wash the cap and flask with aggressive detergents.
• Always dry the plug when the thermos is in use. Remember that it is in it that germs love to nest.

If the lid has lost its tightness and ceased to function, then there are several ways out: self-repair, repair in a service workshop, purchase of a new element or the entire thermos at once.

If your Stanley thermos is out of order, then use the lifetime warranty. The products of this American company are famous for their highest quality, strength, safety and durability. The devices are made of the highest grade food grade stainless steel, the lids are made of food grade polymers. Double vacuum insulation makes it possible to provide the necessary temperature conditions for the contents during the day and even longer.

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The volume of thermoses can be very different.But today thermoses with a volume of up to 0.7 liters are more popular. The STANLEY company offers its customers not only thermoses, but also special thermo-saving containers, flasks, thermo-insulating mugs, special utensils for travel. Ergonomics and compactness of the product makes it the best option for picnics, trips and walks in nature.