Gas Information; Table 13 - Gas Flow Rates - Nordyne M1B, M1G, M1M Installation Instructions Manual

GAS FLOW RATES
CUBIC FEET PER
TIME FOR
ONE REVOLUTION
(SECONDS)
1
10 360
12 300
14 257
16 225
18 200
20 180
22 164
24 150
26 138
28 129
30 120
32 113
34 106
36 100
38 95
40 90
42 86
44 82
46 78
48 75
50 72
52 69
54 67
56 64
58 62
60 60
62 58
64 56
Table 13. Gas Flow Rates (Cubic Feet per Hour)
CAPACITY OF BLACK IRON GAS PIPE (CU. FT. PER HOUR)
FOR NATURAL GAS (SPECIFIC GRAVITY - 0.60)
NOMINAL BLACK IRON
PIPE DIAMETER (IN.)
½
¾
1
1 ¼
1 ½
Cubic Feet Per Hour Required =
NOTE: The cubic feet per hour listed in the table above must be greater than the cubic feet
per hour of gas fl ow required by the furnace. To determine the cubic feet per hour of gas fl ow
required by the furnace, divide the input rate of the furnace by the heating value (from gas
supplier) of the gas.
Table 14. Capacity of Black Iron Gas Pipe (cu. ft. per hour)

GAS INFORMATION

REVOLUTION
OF GAS METER
5 10
1,800 3,600
1,500 3,000
12,86 2,571
1,125 2,250
1,000 2,000
900 1,800
818 1,636
750 1,500
692 1,385
643 1,286
600 1,200
563 1,125
529 1,059
500 1,000
474 947
450 900
429 857
409 818
391 783
375 750
360 720
346 692
333 667
321 643
310 621
300 600
290 581
281 563
LENGTH OF PIPE RUN (FT)
10 20 30
130 90 75
280 190 150
520 350 285
1,050 730 590
1,600 1,100 890
Heating Value of Gas (Btu/Cu. Ft.)
for Natural Gas w/ Specifi c Gravity = 0.60
GAS FLOW RATES
CUBIC FEET PER
TIME FOR
ONE REVOLUTION
OF GAS METER
(SECONDS)
1
66 55
68 53
70 51
72 50
74 49
76 47
78 46
80 45
82 44
84 43
86 42
88 41
90 40
92 39
94 38
96 38
98 37
100 36
102 35
104 35
106 34
108 33
110 33
112 32
114 32
116 31
118 31
120 30
40 50 60
65 55 50
130 115 105
245 215 195
500 440 400
760 670 610
Input To Furnace (Btu/hr)
REVOLUTION
5 10
273 545
265 529
257 514
250 500
243 486
237 474
231 462
225 450
220 439
214 429
209 419
205 409
200 400
196 391
191 383
188 375
184 367
180 360
176 353
173 346
170 340
167 333
164 327
161 321
158 316
155 310
153 305
150 300
70 80
45 40
95 90
180 170
370 350
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