Recovery Cylinder

[SkyWalker]

hi guys, came across a refrigerant reclaim cylinder with no fill values the other day only WC and TW, i couldnt find any filling factors in SI for different refrigerants so i had to use wc x 0.8 for my safe fill,

don't suppose anyone's got a table with filling factors on have they? for common refrigerants

if so the correct equation can be used, often you can safely fill more than the above equations answer.

Filling Factor X tank WC ( water capacity) x 0.8 for safe fill

Thanks guys

[Quality]

Filling Factor X tank WC ( water capacity) x 0.8 for safe fill

Thanks guys

That a safe enough method just make sure the cylinder is in decent condition and the test date does not exceed 5 years

[SkyWalker]

hi Quality, i was hoping for the "filling factor" of different refrigerants as i dont know them, not sure if you miss read?

i want to use that equation as i said but without filling factor i cant?

[Quality]

Yes sorry I did not read fully ,I am sure I have a chart for refrigerant factors as you called it I will look tomorrow and post

[SkyWalker]

hi quality, dont suppose you found that table did you?

[Quality]

I did not find but have looked high and low. If you have a safety data sheet for a particular refrigerant it should tell you the density of it which you could use for a calculation

[Tesla]

Hi SkyWalker
I need to get my Arktic license soon and would appreciate if any one could please post a link or list of the common refrigerants for filling factor or specific densities, it would be really good to find a PT chart with filling factor or densities on it. Than I could put it into my Iphone for use in the field. I do have the data for the old refrigerants but that's no good now days.
Thanks in advance Tesla

[SkyWalker]

hi tesla, did some research and found the following (as quality sugested) from BOC refrigerant safety sheets, will come in handy to me and hope others : -

Relative density, liquid 1.09 (water=1) R410a

Relative density, liquid 1.2 (water=1) R407c

Relative density, liquid 1.2 (water=1) R22

Relative density, liquid 1.07 (water=1) R404a

Relative density, liquid 1.2 (water=1) R134a

example, a cyclinder with a water capacity of 100 and you want to fill it with r407c safely

water capacity x refrigerant density x 0.8 = safe fill

so....

100 x 1.2 x 08 = 96kg safe fill amount, if we dont use the density in our equation then we are using more bottles than we need to....

100 x 0.8 = 80kg. in this example the difference is 16kg, so i think its really worth knowing refrigerant density and doing the sum.

Hope this helps =)

[Tesla]

Thanks SkyWalker
Just what I needed
Tesla

[mickel]

How do you determine the safe liquid level in your recovery cylinders? I have been talking to techs over the years and I always get different answers. I know the correct way is to calculate with a bunch of formulas from water cap. and ratios of saturated temps of liquid. I am talking real world. For example.. If you are using a 125# cylinder, I have been told to fill to net weight from 100# or 125#.

[SkyWalker]

How do you determine the safe liquid level in your recovery cylinders?

dude have you read this thread? the answer is staring you in the face?

its not "a bunch of formula" its ... water capacity x refrigerant density x 0.8 = safe fill

you get the water capacity off the bottle your filling (stamped on), and you need the liquid density of the refrigerant you intend to fill the bottle with and then you can apply the above equation in "the real world"