Gauge Question

[ilgreco1974]

Hey Guys,
can a R134A or r22 gauges set be utilised for r404/r507?
Is it also possible to use 6mm copper tube (1/4"=6,35mm)to build a vapor phase system with a 1/3hp compressor?
Thanks a lot
:)

[fatty]

If you have a comparator I think thats how you spell it then yes or if you know the pressures Well I used mine with 507 also metric copper pipe is normaly for plumbing and is not as high a quality as the air conditioning copper

[hatemi]

If your hoses have fittings that fit to regular schraeders then yes you can use them:) You don't need the P/T char thats on the gauges since you can use some other chart for any given refrigerant and convert the preasures to temps with that.

Metric tubes work as well as any other as long as they are somewhat the same size.

[ilgreco1974]

Thanks!