Table of Contents
Advertisement
STEP 3. At the Tee, calculate the total distance to the secondary regulator. In this example, that equals 20'.
Using Table 1, look up the row for 20' and select he smallest pipe size that has the capacity for the flow of all
the brooders connected to the pipe system (560,000). The smallest pipe size is 1" with a capacity of up to
788,0000 Btu/hr over 20'.
TABLE 1
. --
LP Gas Pipe Sizing Between Single or Second Stage Regulator and Brooders Per ANSI Z223.1 National Fuel Gas Code-1992
3/8"
10 Ft.
39
20 Ft.
26
30 Ft.
21
40 Ft.
19
50 Ft.
18
60 Ft.
16
80 Ft.
13
100 Ft.
11
125 Ft.
10
150 Ft.
9
200 Ft.
8
250 Ft.
8
300 Ft.
---
350 Ft.
---
400 Ft.
---
Maximum propane capacities listed are based on 1/2" W.C. pressure drop at 11" W.C. setting - Capacities in 1,000 BTU/hr.
TABLE 2.
Brooder #
7 and 14
6 and 13
5 and 12
4 and 11
3 and 10
2 and 9
1 and 8
Note 1: The distance used is rounded down to 60.
Note 2: The actual smallest pipe size for the required capacity is ¾" from the table. However, the gas pipe size from brooders 3 and 4
to the regulator must be 1" diameter and therefore a smaller diameter pipe cannot be used. If ¾" pipe was used from the Tee to
brooder 1, the pressure drop in the rest of the system would exceed the design pressure drop of ½"W.C.
Form No. 43539510
May 2020
Tubing Size, O.D. Type L
1/2"
5/8"
3/4"
7/8"
92
199
329
501
62
131
216
346
50
107
181
277
41
90
145
233
37
79
131
198
35
72
121
187
29
62
104
155
26
55
90
138
24
48
81
122
21
43
72
109
19
39
66
100
17
36
60
93
---
---
---
---
---
---
---
---
---
---
---
---
Distance from
Regulator (ft.)
202
174
146
118
90
62
34
Nominal Pipe Size, I.D. Schedule 40
1-1/8"
1/2"
3/4"
1"
935
291
608
1,146
630
200
418
788
500
161
336
632
427
137
287
541
376
122
255
480
340
110
231
435
289
94
198
372
255
84
175
330
224
74
155
292
202
67
141
265
187
58
120
227
172
51
107
201
---
46
97
182
---
43
89
167
---
40
83
156
Flow Capacity
Distance Used from
Required (Btu/hr)
40,000
80,000
120,000
160,000
200,000
240,000
280,000
–17–
1-1/4"
1-1/2"
2"
2,353
3,525
6,789
1,617
2,423
4,666
1,299
1,946
3,747
1,111
1,665
3,207
985
1,476
2,842
892
1,337
2,575
764
1,144
2,204
677
1,014
1,954
600
899
1,731
544
815
1,569
465
697
1,343
412
618
1,190
374
560
1,078
344
515
992
320
479
923
Smallest Pipe Size and
Table (ft.)
Capacity From Table
200
½"
--
200
¾"
--
150
¾"
--
125
1"
--
100
1"
--
60
1"
--
Note 1
40
1"
--
3"
4"
19,130
39,018
13,148
26,817
10,558
21,535
9,036
18,431
8,009
16,335
7,256
14,801
6,211
12,668
5,504
11,227
4,878
9,950
4,420
9,016
3,783
7,716
3,353
6,839
3,038
6,196
2,795
5,701
2,600
5,303
58,000
120,000
141,000
292,000
330,000
435,000
541,000
Note 2
Advertisement
Table of Contents
