TriangleTube Prestige Cascade System User Manual
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Gas Piping
SECTION VII – GAS PIPING
Natural Gas - Pipe Sizing
Refer to Table 11 for Schedule 40 metallic pipe length
and diameter requirements for natural gas, based on the
total of all PRESTIGE Solo Boiler inputs (divided by
1,000 to obtain cubic feet per hour required).
- Table 11 is based on Natural Gas with a specific
gravity of 0.60 and a pressure drop through the gas
piping of 0.30”w.c.
- For additional gas piping sizing information, refer to
ANSI Z223.1. For Canadian installations refer to
CAN/CSA B149.1.
Propane Gas - Pipe Sizing
Contact the local propane gas supplier for recommended
sizing of piping, tanks and 100% lockup gas regulator.
Table 11: Gas Piping Sizing – Natural Gas
Length of Pipe in
Feet
Capacity of Schedule 40 Metallic Pipe in Cubic Feet of Natural Gas Per
Hour (based on 0.60 specific gravity, 0.30" w.c. pressure drop)
SCH 40
1-1/4"
1-1/2"
2"
2-1/2"
3"
10
1060
1580
3050
4860
8580
20
726
1090
2090
3340
5900
30
583
873
1680
2680
4740
40
499
747
1440
2290
4050
50
662
1280
2030
3590
75
533
1024
1637
2895
100
877
1400
2470
150
704
1120
1980
200
602
960
1700
250
534
851
1500
300
771
1360
400
660
1170
500
585
1030
600
530
937
700
862
800
802
= Not applicable for multiple Solo 399 Boilers