from personal experience,makinsmoke wrote: ↑Mon Jun 03, 2019 9:47 pm I was comparing compression and flare fittings on McMaster Carr a couple of weeks ago. The standard brass flare fittings had no mention of being good for steam service, in fact the max working temp was below 400 degrees if I recall.
The standard brass compression fittings were rated for steam service and had a higher max working temp.
I thought that a little odd, as Allen and others have spec’d brass flare fittings in the smokebox for decades.
I can dig up the actual info if anyone cares.
Brian
I will never use brass compression fitting in steam service again. it did not see to take too many heat cycles to start seeing leaks.
I have no issues with off the shelf hardware brass flare fittings.