Milton CAT G200LG4 200kW_250kVA LG Installation Guide User Manual
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TABLE 1 — VAPOR CAPACITY OF PROPANE STORAGE TANKS
To Use: Go to the First column and pick the required kW load and then pick the minimum ambient temperature
(40º, 20º or 0º F) that the generator would be operating in. The third column (tank capacity) will give the required
tank size to continually produce the given fuel flow.
Propane storage tanks can provide either a liquid or a vapor supply to the generator. The above chart is for vapor
withdrawal only and provides the kW output or amount of vapor that can be withdrawn at a given temperature
while keeping the temperature of the liquid above the boiling point. If the withdrawal rate is too high, the LP tem-
perature goes below the boiling point, the pressure drops to zero and no vapor can be withdrawn. A primary regu-
lator is also required at the tank to reduce the line pressure to the generator to 5-14 inches of water column.
Propane Conversions: 36.38 ft
3
= 90,500 btu = 1 gal • 1lb = 21,500 btu = 8.56 ft
3
Figure 1.6 — Propane Storage Tank
Operating
Max kW
Minimum
Hours @
Tank Capacity
Length
Dia
Overall
Vapor
Temp
Max
kW
(Gallons)
Inches
Inches Ht.
Inches
30
40
24
20 20 35 120 57 24 33
10
0
67
35
40
26
25 20 36 150 68 24 33
12
0
72
60
40
26
40 20 38 250 94 30 39
20
0
74
80
40
26
50 20 40 325 119 30 39
25
0
77
100
40
31
60 20 51 500 119 37 46
30
0
100
150
40
35
100
20
53
850
165
41
50
50
0
105
170
40
36
120
20
51
1000
192
41
50
60
0
103
Section 1 — General Information
Liquid-cooled Generators