34
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Rapid-sorb
Table 34-1:
Rapid-sorb dispersion tube capacities*
Tube
diameter
Tube capacity
Insulated
(High-Effi ciency Tubes)
Uninsulated
inches
DN
lbs/hr
kg/h
lbs/hr
kg/h
1½
40
43.0
19.5
40.0
18.2
2
50
80.0
36.4
77.0
35.0
* Capacities shown are for horizontal airfl ow.
See DriCalc for vertical airfl ow capacities. If face height is
<22" (559 mm), tube quantity per panel may need to increase to
compensate for reduced capacity of short tubes. Consult DriSteem or
see DriCalc sizing and selection software for the correct calculation.
Table 34-2:
Rapid-sorb header capacities
Header capacity
Header diameter
lbs/hr
kg/h
inches
DN
≤ 250
≤ 113
2
50
251-500
114-227
3
80
501-800
228-363
4
100
801-1300
364-591
5
125
1301-2100
592-955
6
150
PITCH REQUIREMENTS
• For Rapid-sorb with the header outside a horizontal-
airfl ow duct, consider the following:
– 1½" (DN40) dispersion tubes: Use a fastener of
suffi cient length to ac com mo date the 1/8"/ft (1%)
pitch requirement toward the 3/4" pipe thread
(DN20) header drain fi tting.
– 2" (DN50) dispersion tubes: Bracket can be
mounted fl ush to ductwork. Typically, the 1/8"/ft
(1%) pitch can be accomplished in the length of the
hose cuffs used to connect tubes to header.
• See Table 34-3 and the drawings on the following
pages for pitch requirements.
Table 34-3:
Pitch of interconnecting piping, dispersion tubes, and headers for Rapid-sorb evaporative dispersion units
Airfl ow
Type of
interconnecting piping
Diameter of
interconnecting piping
Pitch of
interconnecting piping
Pitch of
dispersion tubes
Pitch of
header
Horizontal
Steam hose
1½" (DN40)
2" (DN50)
2"/ft (15%)
toward Rapid-sorb
Vertically
plumb
1/8”/ft (1%)
toward
condensate
drain
Tubing
1½" (DN40)
2" (DN50)
1/8"/ft (1%)
toward Rapid-sorb
Vertical
Steam hose
1½" (DN40)
2" (DN50)
2”/ft (15%)
toward Rapid-sorb
2"/ft (15%)
toward
header
1/8”/ft (1%)
toward
condensate
drain
Tubing
1½" (DN40)
2" (DN50)
1/8”/ft (1%)
toward Rapid-sorb
INSTALLATION
Dispersion: