AMD DIrect FPB-25DPSSF18TPSI-N Manuale di installazione e istruzioni per l'uso - Pagina 7

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NATURAL GAS : PIPE SIZING CHART
Length of Pipe in Feet
1/2"
10
108
20
75
30
61
40
52
50
46
60
42
70
38
80
36
90
33
100
32
125
28
150
25
175
23
200
22
300
17
LIQUID PROPANE : PIPE SIZING CHART
Length of Pipe in Feet
1/2"
10
275
20
189
30
152
40
129
50
114
60
103
70
89
80
78
90
69
100
63
125
54
150
48
175
43
200
40
300
37
NOTE: The sizing charts above list the specific pipe sizes required for the amount of BTU's for a new gas line installations. If you
are using an existing gas line you must take into consideration the existing gas line capacities to ensure you will have proper
pressure.
This chart is for reference only, we recommend you consult with a Licensed Plumber/Gas Fitter or NFPA54 (National Fuel
Gas Code - current edition) for more details.
Table 4 Gas pipe sizing.
Rd. Flat Pan Fire Pits with Brass Snowflake Burner with TPSI Ignition
REFERENCE

GAS PIPE SIZING CHART

GAS PIPE SIZING
3/4"
1"
1 - 1/4"
1 - 1/2"
230
387
793
1237
160
280
569
877
129
224
471
719
110
196
401
635
98
177
364
560
89
159
336
513
82
149
317
476
76
140
239
443
71
133
275
420
68
126
266
411
60
117
243
369
54
105
215
327
50
93
196
303
47
84
182
280
37
70
145
224
3/4"
1"
1 - 1/4"
1 - 1/2"
567
1071
2205
3307
393
732
1496
2299
315
590
1212
1858
267
504
1039
1559
237
448
913
1417
217
409
834
1275
185
346
724
1086
162
307
630
976
146
275
567
866
132
252
511
787
112
209
439
665
100
185
390
590
90
168
353
534
83
155
325
491
77
144
303
458
2"
2 - 2 1/2"
3"
4"
2259
3640
6434
1610
2613
5236
9521
1335
2165
4107
7859
1143
1867
3258
6795
1041
1680
2936
6142
957
1559
2684
5647
896
1447
2492
5250
840
1353
2315
4900
793
1288
2203
4667
775
1246
2128
4518
700
1143
1904
4065
625
1008
1689
3645
583
993
1554
3370
541
877
1437
3160
439
686
1139
2539
2"
2 - 2 1/2"
3"
4"
6221
10140
17990
35710
4331
7046
12510
25520
3465
5695
10110
20620
2992
4778
8481
17300
2646
4343
7708
15730
2394
3908
6936
14150
2047
3329
5908
12050
1811
2991
5309
10830
1606
2654
4711
9613
1496
2412
4281
8736
1282
2083
3618
7382
1138
1808
3210
6549
1030
1637
2905
5927
947
1505
2671
5450
887
1404
2492
5084
•
Natural Gas (NG) flow is given in
-
thousands of BTU/hr. = 1 cubic
foot of NG gas - 1000 BTU
•
Nominal pressure at the burner
for Natural Gas is 3.5" of water
column. (Typical machine supply
5"-7")
•
Pipe length must include
additional length for all fittings.
Add approximately 5 feet of pipe
per fitting.
•
Natural Gas Example: A machine
with a burner that requires
440,000 BTU would need a 1 -1/4"
pipe for a 20" long run.
•
Liquid Propane (LP) Gas flow is
given in thousands of BTU/hr. =
1 cubic foot of LP gas - 2500 BTU.
•
This chart refers to low pressure LP,
after regulation, Standard nominal
pressure at the burner for Liquid
Propane Gas is 11" of water column.
•
Pipe length must include additional
length for all fittings. Add
approximately 5 feet of pipe per
fitting.
•
LP Example: A machine with a
burner that requires 440,000 BTU
would need a 1" pipe for a 20' long
run.
REV. A
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