Van Air Systems PLD 8-14.5 / 36-14.5 - Manual (Page 6)

PAGE 6
1450
PSIG
25.4
22.1
19.2
16.6
14.3
12.3
10.6
9.1
7.8
6.6
5.6
FIGURE 4-A BED LEVEL DETAIL
4.4 BED LEVEL GUIDE
4.5 DESICCANT CONSUMPTION
MODEL
PLD8-14.5
PLD12-14.5
PLD16-14.5
PLD20-14.5
PLD24-14.5
PLD30-14.5
PLD36-14.5
C
Dim. To
MIN LEVEL
30-5/8"
30-1/4"
31-3/8"
29-3/4"
31"
34"
35-7/8"
MODEL
PLD8-14.5
PLD12-14.5
PLD16-14.5
PLD20-14.5
PLD24-14.5
PLD30-14.5
PLD36-14.5
CERAMIC
BEAD
14 LBS
32 LBS
50 LBS
83 LBS
119 LBS
186 LBS
318 LBS
GASDRY
PEAK
44 LBS
136 LBS
215 LBS
355 LBS
511 LBS
794 LBS
1361 LBS
GASDRY
MAX
48 LBS
148 LBS
235 LBS
387 LBS
557 LBS
866 LBS
1484 LBS
B
Dim. To
Pre-Bed
45-5/8"
51-1/4"
52-3/8"
50-3/4"
52"
55"
56-7/8"
DRYER DIMENSIONS (INCHES)
D
Dim. To
MAX LEVEL
15-5/8"
9-1/4"
10-3/8"
8-3/4"
10"
13"
14-7/8"
A
Dim. To
Grid
51-5/8"
57-1/4"
58-3/8"
56-3/4"
58"
61"
62-7/8"
GASDRY
PRIME
57 LBS
178 LBS
282 LBS
464 LBS
669 LBS
1039 LBS
1781 LBS
DRYING
The level of the desiccant bed should be maintained as
close to the MAXIMUM level as possible. The bed level
should not be allowed to fall below the MINIMUM level, or
dehydrator performance will be effected. Reference Figure
4-A for levels and quantities.
With the fill port cover removed, use a measuring stick to
determine the distance from the top of the fill opening to the
top of the desiccant bed. Reference Figure 4-A. Add
desiccant as required to bring desiccant bed to MAXIMUM
level.
CAUTION
Never fill the vessel above the MAXIMUM LEVEL.
Filling the vessel above the MAXIMUM level may effect
the performance of the dehydrator.
The desiccant bed level should be checked regularly.
Section 4.5 DESICCANT CONSUMPTION will help to esti-
mate the amount of desiccant that the dehydrator should
use based on operating conditions.
Consumption is rate based on average conditions. Actual
conditions can vary.
4.5-A GASDRY PRIME DESICCANT
This general purpose tablet is recommended for instal-
lations where inlet gas temperature is 100
o F or lower.
Depending on the pressure and temperature, GasDry
Prime can provide a residual moisture content below 6
#/MMSCF.
Chart 1 shows the level of dryness that GasDry Prime will
provide at different conditions.
Chart 2 shows an approximate consumption rate for
GasDry Prime at several conditions. Use the charts for
guidelines to calculate the approximate consumption
rate of the desiccant.
CHART 1
INLET
TEMP
100 o F
95 o F
90 o F
85 o F
80 o F
75°F
70 o F
65°F
60 o F
55°F
50°F
100
PSIG
224.7
193.1
165.9
141.6
120.8
102.5
86.6
73.2
61.7
51.4
43.0
750
PSIG
40.9
35.4
30.6
26.3
22.6
19.3
16.5
14.0
11.9
10.1
8.5
1000
PSIG
32.8
28.5
24.7
21.2
18.3
15.7
13.4
11.5
9.8
8.3
7.0
1100
PSIG
30.7
26.6
23.1
19.9
17.2
14.7
12.6
10.8
9.2
7.8
6.6
1200
PSIG
28.8
25.0
21.7
18.7
16.2
13.9
11.9
10.2
8.7
7.4
6.3
1300
PSIG
27.3
23.7
20.6
17.8
15.3
13.2
11.3
9.7
8.3
7.0
6.0
1400
PSIG
26.0
22.6
19.6
16.9
14.6
12.6
10.8
9.2
7.9
6.7
5.7
MOISTURE CONTENT OF GAS (LBS. H2O/MMSCF)
AFTER DEHYDRATOR WITH GASDRY PRIME
NOTE
MMSCF is 1,000,000 STANDARD CUBIC FEET
lbs./in
of bed
1.9
4.2
6.7
11.0
15.9
24.8
42.4
lbs./in
of bed
1.5
3.2
5.1
8.4
12.2
18.9
32.4
lbs./in
of bed
1.6
3.5
5.6
9.2
13.3
20.6
35.3