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Charging cylinder conversion?
I’ve been useing a 16oz charging cylinder lately for certain repairs. The measurements on the cylinder are for r12 and r22 but I use it to carry R134a (I’ve done that from new so no other refrigerants have been in the cylinder). I can’t find anywhere if there’s a difference in volume between the different types. So far I haven’t had any issues charging an ounce less then the r12 measurements but want to find out the correct info. First post to the forums look forward to chatting!
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1 Reply
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Oh my, that’s a old method to charge. You still should weigh the charge out of your cylinder. R-12 @ 75F weighs 80.05 ponds per cubic foot. R134 is a lot lighter at 75.387. But when you look at the vapor volume/weight, it reverses. R12 is .44 pounds per cubic ft and R134 is .5743. The reason that it isn’t as efficient as R12.
I understand carrying it in a smaller container, but you still need to weigh the charge in.
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