PEX near steam mains

Nurb

Hi everyone,
I've been trying to figure out if there's any concern running PEX (b) near steam mains, let's say within a couple inches, but not touching. The mains are insulated (1") except for the tees.

ChrisJ

If the steam piping is insulated I don't think there's an issue.
I had a few places I was close to fittings I was too lazy to insulate so I insulated the pex in those areas instead.


Chances are if the pex is even a few inches from a bare steam main it'll probably be fine, but I'd rather have some insulation between the two, one way or another.

pecmsg

I’d keep it 6 - 12” away

KC_Jones

I can put my hand within 1/4" of an inch of any steam main or radiator and not even come close to being burned, I feel heat, but no way am I getting burned even at that close range.

I think people forget how great an insulator the air is. It really is quite horrible at transmitting heat.

If the pipes are insulated it's completely fine.