PENSOTTI PNCC-32N Instruction Manual page 29

Length of
Pipe In Feet
10
20
30
40
50
60
70
80
90
100
125
Natural Gas flow is given in thousands of BTU/hr. - One cubic foot of natural 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
Length of
Pipe in Feet
10
20
30
40
50
60
80
100
125
150
LP Gas flow is given in thousands of BTU/hr. - One cubic foot of LP gas - 2516 BTU
This chart refers to low pressure LP, after regulation Standard nominal pressure at the burner for
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.
INSTALLATION INSTRUCTIONS
Natural Gas
1/2" 3/4"
108 230
75 160
61 129
52 110
46 98
42 89
38 82
36 76
33 71
32 68
28 60
Liquid Propane
1/2" 3/4"
275 567
189 393
152 315
129 267
114 237
103 217
89 185
78 162
69 146
63 132
Liquid Propane Gas is 11" of water column.
Pipe Sizing Chart
Size of Schd. 40 Black Iron Pipe in Inches
1" 1-1/4"
387
280
224
196
177
159
149
140
133
126
117
a 20' long run.
Gas Pipe Sizing Chart
Size of Schd. 40 Black Iron Pipe in Inches
1" 1-1/4"
1071 2205
732 1496
590 1212
504 1039
448 913
409 834
346 724
307 630
275 567
252 511
1-1/2"
793 1237
569 877
471 719
401 635
364 560
336 513
317 476
239 443
275 420
266 411
243 369
1-1/2"
3307
2299
1858
1559
1417
1275
1086
976
866
787
2"
2259
1610
1335
1143
1041
957
896
840
793
775
700
2"
6221
4331
3465
2992
2646
2394
2047
1811
1606
1496
26