5
INSTALLATION
Figure 5-1: Single-Tube
Mounting dispersion tube without
condensate drain
• Connection can be made to the humidifier
with vapor hose or hard piping.
• Hard piping should have a minimum
I.D. of 1½" (DN40).
• A minimum pitch of 2"/foot (15%) back to
the humidifier should be maintained.
• Short sweep 90° elbows are not
recommended; use two 45° elbows
12" (300 mm) apart or long sweep 90°
elbows instead.
• Thin-walled tubing will heat up faster than
heavy-walled pipe, causing less steam
loss at start-up.
• Insulating hard piping will reduce the steam
output loss caused by condensation.
• When mounting the humidifier above the
level of dispersion tube, see Figure 4-2 on
Page 4.
Mounting dispersion tube with
condensate drain
• Mount dispersion tube level.
• Orient dispersion tube so that tubelets are
pointed straight up.
• The dispersion tube must be pitched a
minimum of 1/8"/ft (1%) back to the
humidifier when using a condensate drain.
• Condensate drain tubing must be
pitched a minimum of 1/4"/ft (2%) back
to the humidifier.
• Condensate drain is not provided when
steam flow is 34 lbs/hr (15 kg/hr) or less.
Figure 5-2: RAPID-SORB
®
with condensate wasted to floor drain
Notes:
*
When steam flow is 34 lbs/hr (kg/hr) or less, condensate drain tubing is not provided
by DRI-STEEM. A minimum pitch of 2"/ft (15%) back to the humidifier must be
maintained in the dispersion tube when there is no separate condensate drain.
**
Condensate drain tubing material must be suitable for 212 °F (100 °C) water.
OM-351-1
Movable duct plate (can be mounted
within limits of 2.5" [65 mm]).
3.25"
(85 mm)
1/4"/ft (2%) pitch
1/8"/ft (1%) pitch
2"/ft (15%) pitch
Insertion length
3.25"
OM-224-s
1 1/2" (DN40)
vapor hose
or rigid piping
Failing to follow these recommendations may
result in excessive back pressures being
imposed on the humidifier. This may lead to
dispersion tube(s) spitting, steam blowing
through water seals, or leaking gaskets.
When the distance between humidifier and
the dispersion tube(s) exceeds 20 feet (6 m),
consult factory for recommendations.
3.25"
(85 mm)
3.25
"
(85 mm
)
3.25
"
(85 mm
)
2.5"
(65 mm)
3.25
"
(85 mm
)
3.25"
(85 mm)
Mounting
nut
Mounting nut
High temperature resin tubelets
1/2" O.D. (DN15) stainless steel
(condensate drain)*
1/4" NPT
(DN8) coupling*
Mounting a RAPID-SORB
dispersion panel
For RAPID-SORB mounting dimensions,
please see the drawing at right.
Dispersion tube
Orificed tubelets
Air gap
5" (125 mm) min
.
6" (150 mm) min.
Mounting bracket
Escutcheon plate
Air flow
Duct
Slip coupling or hose cuff
Pitch 1/8" per foot
(1%) (minimum)
Header
1"x1.5" SST channel
Open drain
¾" (DN20)
condensate drain**
tube by others
High temperature
resin tubelets
Insertion length
2.5"
(65 mm)
VMOM-0600.PDF 5
11/19/2009 9:59:10 AM
