Must be. I typically use silver solder, or silver braze. But, many
refrigeration systems I use, have flare fittings.

Christopher A. Young
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"Limp Arbor" wrote in message
...
Was watching and old episode of ATOH the other day and Rich was with
an AC guy in Florida. They were installing AC in a garage. To make
the connections the guy just flared the pipe and tightened them down.

I know on cars brake lines will leak if you don't double-flare them.
Is the pressure in an AC system that much lower that a single-flare
won't leak?