Ansul INERGEN - Page 82

PIPE PRESSURE (Continued)
Schedule 80 Welded – Maximum Pressure (psi) (Continued)
Grade Grade Grade Grade Grade
A-106C* A-53B, A-106B A-53B A-53A, A-106A A-53A
Diameter (Seamless) (Seamless) (ERW) (Seamless) (ERW)
in.
SE 21000 SE 18000 SE 15360
SE 14400 12240
1.0 5717 4900 4182 3920 3332
1.25 4833 4142 3535 3314 2816
1.5 4421 3789 3234 3032 2576
2.0 3855 3304 2820 2644 2248
2.5 4032 3456 2949 2765 2350
3.0 3600 3086 2633 2469 2098
4.0 3145 2696 2301 2157 1834
5.0 2831 2427 2071 1941 1650
6.0 2739 2347 2003 1878 1596
8.0 2435 2087 1781 1670 1420
Schedule 160 Threaded Pipe – Maximum Pressure (psi)
Grade Grade Grade Grade Grade
A-106C* A-53B, A-106B A-53B A-53A, A-106A A-53A
Diameter (Seamless) (Seamless) (ERW) (Seamless) (ERW)
in.
SE 21000 SE 18000 SE 15360
SE 14400 SE 12240
0.5 6500 5571 4754 4457 3789
0.75 6440 5520 4710 4416 3754
1.0 5749 4928 4205 3942 3351
1.25 4554 3904 3331 3123 2654
1.5 4664 3998 4312 3198 2719
2.0 4828 4138 3531 3310 2814
2.5 4017 3443 2938 2755 2342
3.0 4044 3466 2958 2773 2357
4.0 4023 3448 2942 2758 2345
5.0 3964 3397 2899 2718 2310
6.0 3918 3358 2866 2687 2284
8.0 3925 3364 2871 2691 2288
Schedule 160 Welded Pipe – Maximum Pressure (psi)
Grade Grade Grade Grade Grade
A-106C* A-53B, A-106B A-53B A-53A, A-106A A-53A
Diameter (Seamless) (Seamless) (ERW) (Seamless) (ERW)
in.
SE 21000 SE 18000 SE 15360 SE 14400 SE 12240
0.5 9350 8014 6839 6411 5450
0.75 8720 7474 6378 5979 5083
1.0 7985 6844 5840 5475 4654
1.25 6325 5422 4627 4337 3687
1.5 6212 5324 4543 4259 3620
2.0 6066 5199 4437 4159 3535
2.5 5478 4696 4007 3757 3193
3.0 5244 4495 3836 3596 3057
4.0 4956 4248 3625 3398 2889
5.0 4719 4045 3451 3236 2750
6.0 4552 3902 3329 3121 2653
8.0 4412 3782 3227 3025 2571
* This grade pipe may be difficult and expensive to get. Consult pipe supplier before accepting flow calculation maximum down stream pressure results.
Maximum Pipe Pressure Chart
SECTION V
UL EX-4510 12-1-01 Page 5-25