15
HUMIDI-TECH
®
DISPERSION
Notes:
• Use DRI-STEEM's hard pipe adapter kit to connect the steam outlet to hard pipe. Use a hose clamp to
connect the steam outlet to vapor hose. Use a hose cuff and clamps to connect the steam outlet to
tubing.
• Thin-walled tubing heats up faster than heavy-walled pipe causing less steam loss at start-up.
• Hard pipe or tubing diameter must match HUMIDI-TECH steam outlet size (DN40 or DN50).
• See the Maximum Steam Carrying Capacity and Steam Loss tables on Page 18.
• Maximum capacity of dispersion tube with condensate drain:
– DN40: 25.8 kg/h
– DN50: 38.6 kg/h
• Orient dispersion tube so that tubelets (steam orifices) point up.
• The dispersion tube must be pitched a minimum of 1% toward the drain when using a condensate drain.
Condensate drain tubing must be pitched a minimum of 2% toward the escutcheon plate. Condensate
drain is not provided when steam flow is 15 kg/h or less.
• When mounting the humidifier above the level of dispersion tube, see the drawing on Page 17.
• Failure to follow the recommendations on this page may result in excessive back pressures on the
humidifier. This may lead to dispersion tube(s) spitting, steam blowing through water seals, or leaking
gaskets.
• See the Hose Kit Sizing table on the previous page.
Mounting nut
M10
Pitch tube toward
drain 1%
Single dispersion tube with
condensate drain
DC-1449
Duct
Interconnecting plumbing
may be hose, tubing or hard
pipe. Insulate tubing and
hard pipe to reduce steam
loss.
HUMIDI-TECH
humidifier
Secure and seal
escutcheon plates
DN15 (½" O.D.) condensate drain tube.
Pitch 2% toward escutcheon plate.
DN8 (1/4" thread)
DN20 (minimum) condensate drain
tube by installer. Must be suitable for
100 °C water.
Open drain. Refer to governing codes
for drain pipe size and maximum
temperature requirements.
25 mm
air gap
Water seal
125 mm
150 mm
recommended
Pitch: 1%
Single tube with condensate drain
90° long sweep
or two 45° elbows
See the first
note below.
Pitch: 2%
Pitch: 1%
Escutcheon plates:
Dispersion tube Condensate drain
82.5 mm
82.5 mm
82.5 mm
82.5 mm
OM-351-1
VM99-C-0302-M-0302.pdf 15
11/19/2009 9:51:09 AM
