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Chart #3
Recommended Condensate line at distributor(s)
CONDENSATE RETURN GUIDELINES FOR
MAIN STEAM LINES
1. Use vertical condensate leg of distributor
only. Do not over-tighten clamp.
2. Drip stations on steam mains must be
located at all low points in the system, at
each elevation change and or directional
change.
3. Horizontal runs of steam must have a 2”
rise per foot (10º) when flow is going
upwards from drip station and the steam
run is to fall ½” per foot (2º) when flow is
going downwards to drip station.
4. In a horizontal run of the steam main, drip
stations must be located at regular intervals
of 20 feet.
5. The drip station itself is a section of piping
connected to the bottom of the main. A full
size tee must be used to create a drip
station to allow the condensate to fall in the
drip station.
6. Vertical drop of the drip station should be
1.5 times the diameter of the steam main
but no less then 12”.
7. At the bottom of this drip station is where
the “p-trap” is installed. It is to be 2” larger
then the duct static duct pressure.
8. All distributors must be individually trapped.
-2-
Dispersion
Method
Condensate
Hose
Copper tube
Stainless Steel
tube
1 x Steam
distributor
3/8" Nortec
1328840
1/4" MED-L
Tubing
(3/8" O.D.)
3/8” tube
0.049” thick.
3 x Steam
Distributor*
3/8" Nortec
1328840
1/2" MED-L
Tubing
(7/8" O.D.)
5/8” tube
0.049" thick
*When using more than one distributor, the condensate line
should be trapped before joined together.
Full Size
Drain Tee
Figure #1
Drain Tee