Installation
3-10
Algas-SDI Operations & Maintenance Manual P/N 52632
Table 1 – Sizing Chart for Liquid Propane Supply Lines to Vaporizers
(use schedule 80 steel pipe or approved equal)
Capacity of Units
Distance in feet from Storage to Vaporizer
MMBTU
GPH
100
200
300
400
500
750
1000
2000
20.0
220
1 ¼”
1 ¼”
1 ½”
2”
2”
2”
2”
2 ½”
30.0
330
1 ¼”
1 ½”
2”
2”
2”
2”
2 ½”
2 ½”
40.0
440
1 ¼”
1 ½”
2”
2”
2”
2”
2 ½”
2 ½”
50.0
550
1 ½”
2”
2”
2”
2”
2”
2 ½”
2 ½”
60.0
660
2”
2”
2”
2”
2”
2 ½”
2 ½”
2 ½”
80.0
880 2” 2” 2” 2” 2”
2
½”
2
½”
3”
100.0
1100
2”
2”
2”
2”
2 ½”
2 ½”
2 ½”
3”
150.0
1640
2”
2”
2”
2 ½”
2 ½”
2 ½”
3”
3”
200.0
2200
2”
2”
2 ½”
2 ½”
2 ½”
3”
3”
3 ½”
300.0
3300
2”
2 ½”
2 ½”
2 ½”
3”
3”
3 ½”
4”
400.0
4400
2 ½”
2 ½”
2 ½”
3”
3”
3 ½”
4”
4”
500.0
5500
2
½” 3” 3” 3” 3
½” 4” 4” 4”
750.0
8200
3” 3” 3” 3
½” 4” 4” 5” 5”
1000.0
10950
3”
3 ½”
3 ½”
4”
4”
5”
5”
6”
NOTE
Per NFPA 58, a storage tank shall have piping downstream large
enough to assure closure of the excess flow valve if the pipe is
ruptured. If the pipe is too small to allow this flow, it must be
protected downstream with an excess flow valve.
