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Description
vaso expansion caldera viessmann 7828646Das Ausdehnungsgef ist eine grundlegende Komponente in Heizkesseln. Seine Hauptfunktion besteht darin, die Volumennderungen des Wassers beim Erhitzen aufzufangen und so bermige Druckanstiege zu vermeiden, die den hydraulischen Kreislauf beschdigen knnen. Dieses Ausdehnungsgef von Viessmann, Modell 7828646, ist darauf ausgelegt, den Druck stabil zu halten und den Kessel vor mglichen Lecks oder inneren Schden zu schtzen. Welches Problem lst dieses
Das Ausdehnungsgefäß ist eine grundlegende Komponente in Heizkesseln. Seine Hauptfunktion besteht darin, die Volumenänderungen des Wassers beim Erhitzen aufzufangen und so übermäßige Druckanstiege zu vermeiden, die den hydraulischen Kreislauf beschädigen können. Dieses Ausdehnungsgefäß von Viessmann, Modell 7828646, ist darauf ausgelegt, den Druck stabil zu halten und den Kessel vor möglichen Lecks oder inneren Schäden zu schützen.
Welches Problem löst dieses Ersatzteil?
- Instabiler oder zu hoher Druck im Heizkreislauf.
- Wasserverlust durch Lecks, verursacht durch Überdruck.
- Fehlfunktion oder Ausfall des Kessels durch nicht abgepufferte Wasserausdehnung.
Modelle:
Kompatibel mit Viessmann-Heizkesseln der Vitopend-Serie und verwandten Modellen, die das Ausdehnungsgefäß mit dem Code 7828646 verwenden.
| Viessmann Vitopend 100 WB1B | Viessmann Vitopend 100 WH1B |
| Viessmann Vitopend 111 WH1B | Viessmann Vitopend 200 |
| Viessmann Vitodens 100-W | Viessmann Vitodens 111-W |
| Viessmann Vitodens 200-W | Viessmann Vitopend 222-W |
Eigenschaften:
- Teileart: Ausdehnungsgefäß für Heizkessel
- Kompatible Marke: Viessmann
- Codes: 7828646 (Viessmann)
- Kapazität: 8 Liter
- Maximaler Betriebsdruck: 3 bar
- Ungefähre Maße: 100 mm (Durchmesser) x 340 mm (Höhe) x 300 mm (Tiefe)
- Anschlussgewinde: 13 mm (3/8")
Empfehlung:
Bitte prüfen Sie vor dem Kauf, ob der Code 7828646 mit dem Ihres aktuellen Ausdehnungsgefäßes übereinstimmt oder ob Ihr Viessmann-Kesselmodell zu den kompatiblen gehört, um eine perfekte Passform zu gewährleisten und Rücksendungen zu vermeiden.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 2324 reviews
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Product Reviews
★★★★★ 5
Powerful, Convenient, and Worth Every Penny
Color: Black
This frother is exactly what I needed to take my morning coffee to the next level. It’s powerful, easy to use, and the fact that it’s USB-C rechargeable is a total win.
☕ Smooth, Frothy Results in Seconds
It whips up foam quickly and consistently, whether I’m using regular milk, oat milk, or blending bulletproof coffee. The speed settings make it easy to control the froth level, and it’s strong enough to mix protein powders and other drinks too.
🔋 Rechargeable & Long-Lasting
One charge lasts a surprisingly long time — I’ve used it daily for over a week without needing to plug it in again. The USB-C charging is super convenient and charges it fast.
🧼 Easy to Clean & Maintain
Cleanup is a breeze. Just rinse the whisk head under warm water immediately after use and it’s good to go. The extra whisk head is a nice bonus in case you ever need a backup.
✅ Pros:
Strong frothing power with multiple speeds
USB-C rechargeable with great battery life
Easy one-button control
Includes a backup whisk head
Quiet, efficient, and compact
❌ Cons:
Doesn’t include a stand (but that’s clearly noted and not an issue for me)
Overall:
This frother delivers on everything — performance, convenience, and durability. If you want café-quality drinks at home without breaking the bank, this is a solid pick.
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Reviewed in the United States on June 9, 2025
★★★★★ 5
Great Frother
Color: Black
Before I purchase anything, I like to reach out to the seller first and find out more about the warranty. Elisa responded very quickly and explained the warranty to me. She also told me how to register my frother once I received it.
My frother was delivered in the evening so I used it the following day. I didn't need to charge it because it already had a charge. It was easy to use and frothed my 2% milk and my flavored creamer perfectly. I am very happy with it, so far.
To sum it up: 1) Elisa was responsive and genuinely seemed to care about her customers, which gave me confidence in making this purchase.
2) Frother works great with milk and milk products.
3) I'm glad I won't have to be replacing batteries. All I have to do is plug it in and I'll be good to go. Plus, the charging cord comes with it.
If you are having doubts let me reassure you, you won't be sorry if you purchase it. I really think you'll like it.
Edit #1: I have had this frother for less than 6 months. This is the 2nd time I have had to charge it; pretty impressive, huh? Each charge lasted for about 2 months! Unfortunately, when I went to use it the following day it was completely dead. The charge did not hold and I was unable to use it. I have read reviews about this happening, but, like most people, I didn't think it would happen to me. Well, it did. I contacted the seller and I will update with the end result. I really do like this frother and I am hoping the seller will do the right thing.
Edit #2: I received the new frother within a week. Like the previous one, it came with a charge. Elisa, the customer service rep, was responsive, which I appreciated. It's nice to have my frothy coffee again; I really missed it. I hope this frother lasts longer than 6 months, but if it doesn't, I hope Elisa will help me again. So, in a nutshell, this company offers great customer service and backs up their product. Fingers crossed I won't have to reach out to them again concerning a frother that won't charge.
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Reviewed in the United States on February 19, 2024
★★★★★ 5
Beyond worth it!
Color: Black
Before this, I used battery powered frothers and couldn’t keep up with replacing the batteries. As soon as the batteries began to lose their charge, the frothers weren’t powerful enough. Somehow, this doesn’t begin to lose its charge until the charge runs out. I’ve spent a fraction of the price buying this as I did on batteries. I got this in Aug 2024. It’s amazing and incredibly powerful. In a year, I charged it 3 times.
If you don’t get the froth you’re looking for, I’d suggest you watch a video on how to froth correctly. I learned there’s a proper technique that really improves the outcome. It made a world of difference for me.
The charge time advertised is not correct. It lasts much much much longer on one charge. After the charge died, I charged it for maybe an hour and then I used it to whisk thick body butter. When washing it, I got it too wet. The motor wouldn’t stop running, so I called it a loss and put it outside to let it run until it stopped. It ran for hours. Sometime during the night it shut off. The next day, I pressed the on button again and it ran the entire day.
It has a warranty, but I never registered mine, so I don’t mind paying for a replacement since it is so inexpensive.
I’m writing this review now because I liked it so much that I just purchased another one to replace it. I hope this helps.
If you’re unsure:
It is incredibly powerful, but has two speeds, so one will work for any frothing needs.
The price is unbeatable, much less than you’ll spend on batteries.
The charge lasts unbelievably long and stays just as powerful until the charge runs out.
It is detachable, so washing it is really simple. Just wipe the top part.
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Reviewed in the United States on September 2, 2025
★★★★★ 4
Mostly good, with one design flaw - See Update - Five stars for new version!
Color: White
*I bumped my rating from 3 to 4 stars because of the customer service. The seller's response to customer reviews is excellent. This particular model (MF05) still gets 3 stars from me, but the new version (MF09) is definitely a 5 star product. See update below.*
Second Update: I received the new version (FoodVille MF09), and really like it. It solves the variable speed problem. Three speeds are still available, however, each has its own on/off switch, so no more cycling through. It also comes with an additional hook attachment for mixing powders with liquid, as well as a charging stand. It is a few dollars more, but most definitely worth it! Buy the MF09 version, https://amazon.com/FoodVille-Rechargeable-Stainless-Cappuccino-Bulletproof/dp/B0872RLB4V/ref=sr_1_1?dchild=1&keywords=foodville+mf09&qid=1595520925&sr=8-1 I recommend buying from this seller (FoodVille). They are very attentive and customer oriented. I will be leaving a 5 star review for that frother!
Update: FoodVille contacted me to let me know they have a new version of this frother that addresses the variable speed issue I've complained about. They are sending me the new frother, and I will post a review on the updated version soon. The new version is FoodVille MF09, so be sure to check it out as it sounds better than the MF05 I have purchased and reviewed here. In addition to fixing the speed issue, they have included a charging dock.
I've had this frother for a few months now. Overall, it works as well as my Aerolatte hand-held that died. I like that it is rechargeable, since I went through quite a lot of batteries before. My problem with this is the way you have to cycle through the speeds, rather than just selecting the one you want. This is a problem because sometimes I'll need to stop it before I'm finished and then when I resume it is on the next faster speed, which causes the milk to fly out of the glass before I can get back to the lower setting. I have ruined at least one shirt with stains from the flying milk. Also, because of where the on/off button is, and because of its sensitivity, I sometimes turn it off accidentally, which of course causes the milk to slosh everywhere getting back to the lower setting. I really wish you could just pick a speed, even if that means just a high and a low. I'm thinking of going back to a single speed frother. All but the lowest speed seems to be too strong to froth milk anyway.
So, it works, it has good battery life, but cycling through the speeds has been a problem for me. I'll keep using it for now, but may be in the market for something different soon.
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Reviewed in the United States on April 2, 2020
★★★★★ 5
Perfect for home baristas
Color: White
I recently purchased this milk frother, and it has completely elevated my daily coffee routine. It’s incredibly easy to use—just pour in your milk, press a button, and within seconds you have perfectly smooth, creamy foam. Whether I’m making a latte, cappuccino, or even a matcha, the texture comes out consistently rich and velvety every time.
What I love most is how quiet and fast it is compared to other frothers I’ve tried. It heats the milk evenly without burning it, and the foam holds its shape beautifully. Cleanup is also a breeze thanks to the non-stick interior—just a quick rinse and wipe, and it’s ready to go again.
The design is sleek and compact, so it doesn’t take up much counter space, and it looks great next to my coffee setup. Overall, this frother delivers excellent performance, convenience, and quality. I’d highly recommend it to anyone who enjoys café-style drinks at home.
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Reviewed in the United States on March 19, 2026
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