Flaring differences between R22 and R410a

[alan_man]

Hi there, as the title suggests I'm curious to find out the major differences between flaring pipework for the two refrigerants R22 and R410a (for pipes 1/4 to 5/8 for domestic split systems). I've done plenty of work with R410a however have not dealt with flaring pipes for R22. Most R22 systems Ive dealt with have already been installed, and since I've been asked to re-install a working split (where the existing pipes were damaged during transport) I'd like to find out abit more. All I know is since there is a lower operating pressure with R22, the flare does not have to be as "deep" and the copper pipe does not to be as thick compared to pipework for R410a. Is a person able to use the R410a flaring block for R22 flares? Can the pipe to be flared be left more in the flaring block so the flare isnt as large? Thanks in advance

[B G Scott]

The flare size is dictated by the fittings and as far as I am aware the standard dimensions of SAE flare fittings have not change.
If however you have some odd fittings made for metric pipe check a test flare on both the female and male fittings this should indicate any discrepancies.
As far as I am aware your standard flare block and standard method of producing flared fitting should be the same for R22 as it is for R410A

[alan_man]

ok will do the check next time I have a chance, would you know if the flare angles between the two are the same?

[Quality]

All refrigeration flares are 45 degrees

[Bigfreeze]

Theres no difference in the flares or their method of making them.

[paul_h]

No practical difference, I reflare and flare 410a and R22 systems everyday (reflare old leaking R22 systems, flare new r410a installs)

[alan_man]

Ok great, thanks for all the help guys really appreciated