25
STEAM INJECTION INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Field piping
From steam source
Separator
Trap (see Note 7 on Page
Condensate drain
12" (305 mm)
min.
Secure and seal escutcheon plates
Dispersion tube with
noninsulated steam jacket
Level
Airflow
DC-1066
Piping downstream from strainer should be
same size as strainer.
4" (100 mm) min.
Drip
3/4" pipe thread (DN20)
Duct
Minimum duct width 9" (229 mm)
SINGLE-TUBE HUMIDIFIER
Secure end of tube to duct using
support bracket (0.42" [11 mm]
dia. holes in top, bottom, and
end of bracket)
Isolation valve (by others)
Install strainer within
3' (1 m) of humidifier
(see Note 4)
Steam valve and actuator (see Note 4)
NOTES:
1. To avoid metal fatigue, allow for dispersion tube thermal expansion.
2. Dashed lines indicate provided by installer; right-hand discharge shown.
3. Dri-calc is DriSteem’s free sizing and selection software available at www.dristeem.com.
4. Steam valve and strainer sizes are provided by Dri-calc (Note 3).
5. See “Piping notes” on Page 23, and see Pages 14 and 15 for more information about trap types and trap
piping.
mc_050911_1600
FIGURE 25-1: SINGLE-TUBE HUMIDIFIER WITH HORIZONTAL DISPERSION TUBE
AND HORIZONTAL SEPARATOR INSTALLED IN A HORIZONTAL AIRFLOW
