Protecting Components While Brazing w/ WetRag
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- เผยแพร่เมื่อ 12 ก.ย. 2019
- In this video, we demonstrate a clean and easy way of protecting components while brazing. We show how to use WetRag from Refrigeration Technologies in lieu of a wet towel.
When brazing, we need to protect components that can be easily harmed by the torch, such as the TXV, the liquid line filter drier, or a service valve. In many cases, we could cover those points in wet towels, but we can also apply WetRag heat-blocking putty to surfaces to keep from conducting heat inside sensitive components or scorching the paint. You can also apply WetRag to the face of the unit if your brazing torch gets close though to the unit.
WetRag is reusable and can last for several uses; if it gets dehydrated, you can just add a bit of water to it. Once you have brazed your joints, you can simply return the WetRag to its container.
A brazing torch can cause a lot of damage to valves, compressors, and driers, and scorching the paint can cause corrosion. WetRag is an essential tool for brazing because it's easy to use in tighter areas, molds around components easily, and protects components from heat.
Refrigeration Technologies: www.refrigtech.com/
Read all the tech tips, take the quizzes, and find our handy calculators at www.hvacrschool.com/
I use wet rag all the time works for me. Holds heat back way better then actually rags. I like the viper spray as well doesn’t pop like nu-calgen.
Welding and Brazing is a Art. Once the load heated is at melting point of the solder I work fast as possible wicking around with the given flame temperature.
I prefer as hot as possible, Being carefull not to blow a hole. Have seen many holding a low temp flame over 45 seconds transferring heat toward components burning them while waiting for the solder to melt. I can do it in 10 Seconds. :-) Even though that one joint wicked a little less it is perfect.
Never heard of it. I’ll look next time at the parts store. Thanks brother
Good stuff guys!
Definitely going check it out
Thanks a lot sir for good information....
and that is why I use stay brite#8 whenever I can, you get to avoid damaging other components and won't anneal the copper.
I literally use a wet rag lol! Grab a box of rags out the shop every other day lol
What psig for the oxygen and acetylene do you feel most comfortable using? Bryan, also on the Viper Wet Rag how long do you recommend letting the wet rag cool, before putting it back into the jar? Thanks for your informative videos.
Wet tag is great on smaller lines but I had trouble using it while brazing in shutoff valves on 1-1/8" lines. The pile of Wet Rag was too big and the heat applied started to dry it out. I'll still use it on smaller lines but might stay away from it on bigger lines.
What regulator are you using?
👍
What size brazing tip are u using?
What size brazing tip is that?
Do they work well for brazing txv?
I prefer to use a wet wypall paper towel or a wet wash cloth.
I thought the wet rag was to be used in place of an actual rag. You seemed to use it for protecting paint by the way you applied it, especially on the liquid line at the evaporator.
While it can protect the paint, using it applied specifically on the copper like you would an actual rag should minimize the heat transfer past it. If it is loose, like on the evaporator joint, it does little to block the heat transfer.
Used properly it can be a good substitute for rags.
Una pregunta, a cuantos PSI debe circular el nitrógeno dentro del circuito para efectuar la soldadura ?
FRIGOAZUL REFRIGERACION rozadilla 4
Maybe it’s the video but it seemed like a very aggressive flame for 3/8 copper to me.
Try a turbo torch thay work good and you only have one tank just use a number 14 or 11 tip and a wet rag
Troy B
I learned to solder using oxy/acetylene torches starting in 1979.
Turbo torches have always struck me as a non precision tool. I know my torches are heavy but they are quicker and more precise.
I had to braze the lines to the evap coil and AC unit today. Why is it that my braze was all in a big puddle and wasn’t spreading out evenly like you show in the video?🤔🤔
Not enough heat.
@@carlosa.3703 I realized that after doing over and over! You're right, thanks
I'm not a fan of that wet rag. It always seems to be too soggy and fall apart too easy.
Hmmm. Nitrogen?
1 in 17 alum evaps a leaker at install
1 in 12 alum evaps leak within warranty. BDP product
1in 7 alum evap coil leak close to the 15 year mark.
#4050-06 sealer is a crapshoot ..
It looks exactly like the wet toilet paper that I’ve been using for decades. And you could reuse it all day long and just keep adding more toilet paper to it exactly the same. I got a buy some wet wag 👍and do a side-by-side comparison with toilet paper 🤣
J T Sounds like the quilted Northern it’s better I should give that a try 👍😂 and I always can use the leftovers
I agree refrigeration technologies has good products but it is very hard to find their products at any distributors here in the Midwest. I have to get my products on-line one from California and New York. Does anybody know if you can buy their products directly from them since the distribution is hit & miss?
Johnstone Supply and United Refrigeration
Refrigeration Technologies those distributors are 60 miles away, the closest four distributor to me are 30 miles away, unfortunately they don’t carry your product. The only reason I order it on-line is there is no freight charge, although the prices are comparative to the distributors you mention, Johntone and URI would charge $26.00 shipping. Thanks for responding
@@superiorcomfortheatingairl3373 Send me a list of the distributors and I will work on getting the product stocked for you.
Refrigeration Technologies If you Google HVAC Distributor in St Joseph Missouri the four distributors will come up, but I am really impressed with AC Pro and SupplyHouse (maybe you can get Supply House won’t stock the cans of coil cleaner just the 1 Gallon Bottle). If you do get hooked up with any of the four distributors throw a T-Shirt or Hat my way. I love the Viper Logo, you be surprised on the comments I get from customers especially when I do a leak search and they see the snake on the soap bottle, it can turn into a great conversation
@@superiorcomfortheatingairl3373 Baker would be your best chance locally. They have our products in distribution. You will just need to ask the branch to bring it in. Other than supplyhouse, you should try trutechtools.com. They carry pretty much everything we offer.
You didn't remove the sensing bulb you have to be kidding me
If properly isolated and heat applied properly, removing the bulb is not necessary.
In situations where you can't do that, removing the bulb is recommended. If you are new to brazing it is also a good idea to remove it.
If you always remove it you will never damage it. The five minutes it takes to remove and install the bulb is CHEAP insurance. One damaged valve would be expensive. The time and materials plus the lost revenue from the job you could have done while replacing the txv. But of course I look at it and decide to leave or remove the bulb on a casa by case basis. I always remove the electronic sensor for the eev regardless.
overdone and you know that
All this unnecessary bs