Gas Information; Table 9 - Gas Flow Rates - Nordyne M4RC Upflow Installation Instructions Manual

TIME FOR
ONE REVOLUTION
(SECONDS)
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
NOMINAL BLACK
IRON PIPE
DIAMETER (IN.)
½
¾
1
1 ¼
1 ½
The cubic feet per hour listed in this table 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.
40

GAS INFORMATION

GAS FLOW RATES (CUBIC FEET PER HOUR)
CUBIC FEET PER REVOLUTION
OF GAS METER
1 5
360 1,800
300 1,500
257 12,86
225 1,125
200 1,000
180 900
164 818
150 750
138 692
129 643
120 600
113 563
106 529
100 500
95 474
90 450
86 429
82 409
78 391
75 375
72 360
69 346
67 333
64 321
62 310
60 300
58 290
56 281
Table 9. Gas Flow Rates
CAPACITY OF BLACK IRON GAS PIPE (CU. FT. PER HOUR)
FOR NATURAL GAS (SPECIFIC GRAVITY - 0.60)
10 20
130 90
280 190
520 350
1,050 730
1,600 1,100
Cubic Feet Per Hour Required =
Table 10. Black Iron Gas Pipe Capacities
TIME FOR
ONE REVOLUTION
(SECONDS)
10
3,600 66
3,000 68
2,571 70
2,250 72
2,000 74
1,800 76
1,636 78
1,500 80
1,385 82
1,286 84
1,200 86
1,125 88
1,059 90
1,000 92
947 94
900 96
857 98
818 100
783 102
750 104
720 106
692 108
667 110
643 112
621 114
600 116
581 118
563 120
LENGTH OF PIPE RUN (FT)
30 40 50
75 65 55
150 130 115
285 245 215
590 500 440
890 760 670
NOTES:
Input To Furnace (Btu/hr)
Heating Value of Gas (Btu/Cu. Ft.)
CUBIC FEET PER REVOLUTION
OF GAS METER
1 5 10
55 273 545
53 265 529
51 257 514
50 250 500
49 243 486
47 237 474
46 231 462
45 225 450
44 220 439
43 214 429
42 209 419
41 205 409
40 200 400
39 196 391
38 191 383
38 188 375
37 184 367
36 180 360
35 176 353
35 173 346
34 170 340
33 167 333
33 164 327
32 161 321
32 158 316
31 155 310
31 153 305
30 150 300
60 70
50 45
105 95
195 180
400 370
610
80
40
90
170
350