TABLE I
Maximum Capacity of Piping in Cubic Feet
of Gas Per Hour
(Based on a Pressure Drop of 0.3" Water
and 0.6 Specific Gravity)
Length in | Nominal Iron Pipe Size | ||
|
|
| |
Feet | 1/2 | 3/4 | 1 |
| |||
10 | 132 | 278 | 520 |
20 | 92 | 190 | 350 |
30 | 73 | 152 | 285 |
40 | 63 | 130 | 245 |
50 | 56 | 115 | 215 |
60 | 50 | 105 | 195 |
70 | 46 | 96 | 180 |
80 | 43 | 90 | 170 |
90 | 40 | 84 | 160 |
100 | 38 | 79 | 150 |
TABLE II
Maximum Capacity of Piping in Cubic Feet of
Gas Per Hour
(Based on a Pressure Drop of 0.5" Water and
0.6 Specific Gravity)
Length in | Nominal Iron Pipe Size |
| |
|
|
| |
Feet | 1/2 | 3/4 | 1 |
| |||
10 | 175 | 360 | 680 |
20 | 120 | 250 | 465 |
30 | 97 | 200 | 375 |
40 | 82 | 170 | 320 |
50 | 73 | 151 | 285 |
60 | 66 | 138 | 260 |
70 | 61 | 125 | 240 |
80 | 57 | 118 | 220 |
90 | 53 | 110 | 205 |
100 | 50 | 103 | 195 |
125 | 44 | 93 | 175 |
150 | 40 | 84 | 160 |
175 | 37 | 77 | 145 |
*NOTE – For all practical purposes, each 90° elbow can be considered as the following equivalent in length of straight pipe:
½” – 1.6 ft. | 1” – 2.6 ft. |
¾” – 2.1 ft. |
|
TABLE III
Multipliers to be used with Tables I and II for
Specific Gravity Other Than 0.60
Specific Gravity | Correction Factors |
.501.10
.551.04
.601.00
.65.96
.70.93
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