In seeing Tim’s post, I was thinking "which refrigerant is it in pink, again? "
Soon, it would seem, none of them…
Hm. So now, like HGTV, everything is turning Battleship Gray…
Not sure what to make of that.
R-410, That one has been sitting there for 6 years apparently.
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I thought that looked like a 6-year rust circle…
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Still seems wrong, that the only correct way to draw it from a cylinder is as a liquid, no matter how much I understand why.
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The recovery tanks are gray on the bottom & yellow on the tops, or they are supposed to be.
They have them in 30 lb, 50 lb, 125 lb, 250 lb, 440 lb(not common much at all) & 1000 lb tanks.
Here is a 125 lb tank, it weighs empty about 60 lbs but hold the max 80% of 125 lb which is 100 lbs
Here is a pic of a 250lb tank. They weigh about 80-85 lb empty. Again 80% of 250.
Here is few 1000 lber’s. They are about 350-375 lbs empty.
Then there are the not so mobile recovery tanks. This one holds if I remember right about 10,000 lbs. During this pic it had 6,000 lbs or so of R-134a.
Then there is the new (virgin) refrigerant
25 lb for R-410a, 30 lb, 50lb (getting rare), 100lb drum of either R-11 or R-123, 125 lb cylinders, 200 lb drum of R-11 or R-123, then there is the 1000 tanks & massive 3350 lb tanks. Rarely if you have so much they can bring a tanker, they did that at DFW Airport for their Central Plant.
Normal 30lber, This one is R-134a
Then 125, yep R-134a again.
Then the 1000 lb tanks, Again R-134a. They do come in darker blue from former DuPont.
Then there is the 3350 lb cylinders. These were made in the 40’s. They have about 1” thick steel walls. And this one was from Chemours (former DuPont) of course is R-134a.
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Completely off topic, but earlier today I watched a video on how to turn one of those 30 lb tanks into a media Blaster tank, lol!
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Most if not all the blend refrigerants should be charged as a liquid. The blend will then be off if its not done that way. Then you have a large glide on your drip point & evaporation point.
However with R-134a or any single refrigerant, we almost always charge with vapor until we are above freezing. Once we are above freezing, we pour the coals to it so to speak.
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Those just make fun of residential scale cylinders.
On the 134a, automotive side, I discovered that with a good gauge set, and a properly vacuumed system, everything off, I can usually get the entire first can to liquid charge into the high pressure port leaving nothing but residual pressure in the 12 oz can. I can’t imagine any liquid getting back past the valves into the compressor this way, but I’ll often hand turn the compressor a turn or two before starting the car, just in case.
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