Shut-Off; Natural Gas Pipe Sizing Chart; Propane (Lp) Gas Pipe Sizing Chart - York DNH018 Installation Manual

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1 / 2 x 1 / 2 U N I O N
1 / 2 x 1 / 2 G A S C O C K
D R I P L E G
FIGURE 5 - EXTERNAL SUPPLY CONNECTION
EXTERNAL SHUT-OFF
TABLE 5: NATURAL GAS PIPE SIZING CHART
NOMINAL INCHES IRON PIPE SIZE
LENGTH
IN FEET
1/2"
10 132
20 92
30 73
40 63
50 56
60 50
70 46
80 43
90 40
100 38
1.
Maximum capacity of pipe in cubic feet of gas per hour (based
upon a pressure drop of 0.3 inch water column and 0.6 specific
gravity gas).
10
A U T O M A T I C
G A S V A L V E
1 / 2 - 1 4 N P T
3/4" 1" 1-1/4"
278 520 1,050
190 350 730
152 285 590
130 245 500
115 215 440
105 195 400
96 180 370
90 170 350
84 160 320
79 150 305
TABLE 6: PROPANE (LP) GAS PIPE SIZING
CHART
LENGTH
IN FEET
10
20
30
40
50
60
70
80
1
90
100
1.
Maximum capacity of pipe in thousands of BTU per hour (based
upon a pressure drop of 0.5 inch water column).
If flexible stainless steel tubing is allowed by the
authority having jurisdiction, wrought iron or steel
pipe must be installed at the gas valve and extend
a minimum of two (2) inches outside of the unit
casing.
i
Natural gas may contain some propane. Propane
being a excellent solvent, will quickly dissolve
white lead or most standard commercial com-
pounds. Therefore, a special pipe dope must be
applied when wrought iron or steel pipe is used.
Shellac base compounds such as gaskoloc or sta-
lastic, and compounds such as rectorseal # 5,
Clyde's or John Crane may be used.
66324-YIM-B-1004
1
NOMINAL INCHES IRON PIPE SIZE
1/2" 3/4" 1"
275 567 1,071
189 393 732
152 315 590
129 267 504
114 237 448
103 217 409
96 196 378
89 185 346
83 173 322
78 162 307
Unitary Products Group
1-1/4"
2,205
1,496
1,212
1,039
913
834
771
724
677
630