2 pipe steam horiz pitch problem

Steamhead (in transit)

from Alfred King, one of the Dead Men, via Garth Nisbet who scanned it.

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NRTDave

2 pipe steam horitontal piping pitch problem

I am installing a unit heater in a garage with a pitch problem. Have 9lbs of steam to pipe over 90' away but due to obstructions can NOT pitch steam supply toward heater. Can I 45 over existing pipe obstructions and down again without problems?

My condensate return is the same. Unit is lower than drainage return main. I was thinking of lifting the condenssate up 3' into a new return and then pitch it back to the main return.

Unknown

9lbs of steam

Wowie,, that`s a lot of pressure,, any particular reason for it being that high?
It will take 1.2lbs steam pressure to lift condensate 36" high,, above what the heater needs.
Can you install an F&T right before you upturn into these 45`s?
Then you`ll need a vacuum breaker, vent, inverted bucket trap and a swing C/V(after the trap),, but Frank(Steamhead) will know more.

Dave