Specifications

31
VAPORMIST INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Table 31-1:
Pitch of interconnecting piping, dispersion tubes, and headers for Rapid-sorb evaporative dispersion units
Airflow
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
mc_060310_1000
Dispersion:
INSTALLATION
Table 31-3:
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
mc_060210_0936-
Pitch requirements
• For Rapid-sorb with the header outside a horizontal-airflow duct, consider the following:
– 1½" (DN40) dispersion tubes: Use a fastener of sufficient length to accommodate the 1/8"/ft (1%) pitch
requirements toward the 3/4" pipe thread (DN20) header drain fitting.
– 2" (DN50) dispersion tubes: The bracket can be mounted flush to the ductwork. The 1/8"/ft (1%) pitch typically
can be accomplished in the length of the hose cuffs used to connect the tubes to the header.
• See Table 31-1 and the drawings on the following pages for pitch requirements.
mc_060210_0953-NA
Table 31-2:
Rapid-sorb tube capacities*
Tube
diameter
Tube capacity
Insulated
(High-Efficiency 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 airflow.
See DriCalc for vertical airflow 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 for
the correct calculation.
mc_060210_0935
Rapid-sorb