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Figure 45: Capacity of Pipe Natural Gas (CFH)
With Pressure Drop of 0 .3"
Wc & Specific Gravity Of 0.60
Pipe Length (ft .)
Pipe Size-inches (Ips)
½
¾
1
1¼
1½
2
2½
3
4
10
132
278
520
1050
1600
2050
4800
8500
17500
20
92
190
350
730
1100
2100
3300
5900
12000
30
73
152
285
590
890
1650
2700
4700
9700
40
63
130
245
500
760
1450
2300
4100
8300
50
56
115
215
440
670
1270
2000
3600
7400
60
50
105
195
400
610
1150
1850
3250
6800
70
46
96
180
370
560
1050
1700
3000
6200
80
53
90
170
350
530
990
1600
2800
5800
90
40
84
160
320
490
930
1500
2600
5400
100
38
79
150
305
460
870
1400
2500
5100
125
34
72
130
275
410
780
1250
2200
4500
150
31
64
120
250
380
710
1130
2000
4100
175
28
59
110
225
350
650
1050
1850
3800
200
26
55
100
210
320
610
980
1700
3500
NOTE:
Use multiplier below for other gravities and pressure drops.
Table 16: Specific Gravity Other Than 0.60
Specific Gravity
Multiplier
0 .50
1 .100
0 .60
1 .000
0 .70
0 .936
0 .80
0 .867
0 .90
0 .816
1 .00
0 .775
PROPANE-AIR
1 .10
0 .740
PROPANE
1 .55
0 .622
BUTANE
2 .00
0 .547
Table 17: Pressure Drop Other Than 0.3
"
Pressure Drop
Multiplier
Pressure
Multiplier
0 .1
0 .577
1 .0
1 .83
0 .2
0 .815
2 .0
2 .58
0 .3
1 .000
3 .0
3 .16
0 .4
1 .16
4 .0
3 .65
0 .6
1 .42
6 .0
4 .47
0 .8
1 .64
8 .0
5 .15
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45
IM 1125-7 • REBEL ROOFTOPS
Содержание Rebel DPS003A
Страница 109: ...IM 1125 7 109 Addendum follows...