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9
COOLING MEDIUM*
AMBIENT
TEMPERATURE
MULTIPLIER
°
F
°
C
80
27
1.12
90
32
1.06
100
38
1.00
110
43
0.94
INLET COMPRESSED AIR CONDITIONS
INLET
INLET TEMPERATURES
PRESSURES
80
°
F
90
°
F
100
°
F
110
°
F
120
°
F
psig
kgf/cm
2
27
°
C
32
°
C
38
°
C
43
°
C
49
°
C
50
3.5
1.35
1.05
0.84
0.69
0.56
80
5.6
1.50
1.17
0.95
0.79
0.66
100
7.0
1.55
1.23
1.00
0.82
0.70
125
8.8
1.63
1.31
1.07
0.91
0.74
150
10.5
1.70
1.37
1.13
0.95
0.80
175
12.3
1.75
1.42
1.18
0.99
0.84
200
14.0
1.80
1.47
1.22
1.03
0.89
SIZING
Determining dryer capacity at actual operating conditions
To determine the maximum inlet flow capacity of a dryer at
various operating conditions, multiply the rated capacity from
Table 1 by the multipliers shown in Table 2.
Example: How many scfm can an air-cooled model 1000
handle when compressed air to be dried is at 200 psig and
100
°
F; ambient air temperature is 80
°
F; and a 45
°
F dew point
temperature is desired?
Answer: 1,000 x 1.22 x 1.12 x 1.2 = 1,640 scfm.
TABLE 2
Air capacity correction factors (Multipliers)
MODEL
1000
1250
1500
1750
2000
2500
3000
Rated capacity
60 Hz
1000
1250
1500
1750
2000
2500
3000
of air-cooled
50 Hz
840
1050
1250
1460
1700
2100
2500
models (scfm)
TABLE 1
Rated capacity (scfm) and pressure drop @ 100 psig inlet
pressure, 100
°
F inlet temperature, and 100
°
F ambient tem-
perature
*Air-cooled models; water-cooled models use 1.15 multiplier if cooling
water is below 35
°
C, 95
°
F.
OUTLET DEWPOINT
DEWPOINT
TEMPERATURE
MULTIPLIER
°
F
°
C
38
3
1.0
45
7
1.2
50
10
1.3
1
5
2
6
1a
1b
Upper
Shell Cap
Upper Piping
3.3 Check separator daily to be sure automatic drain
is discharging.
NOTE: Units with two stage filtration have two sets of drains.
3.4 Blow down separator weekly by pushing test
button on control panel.
3.5 Rebuild drain mechanism annually.
To facilitate service, maintenance kits are available.
Содержание 9VXRD Series
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