NPT High Pressure
Manufactured according to the standards ABNT NBR 6925, ANSI/ASME
B 16.3, ANSI/ASME B 16.39.
Material: malleable cast iron.
Galvanizing: hot-dip galvanized (hot immersion) in zinc bath,
which allows for uniform external and internal protection.
Threads: according to standard ANSI/ASME B 1.20.1
Thread alignment: manufactured to guarantee a maximum deviation
of 0.5o, according to the specifications of the standard.
| Pipe fittings pressure chart (NPT)
NBR 6925 |
| Temperature |
Maximum Working Pressures according
to ASME/ ANSI B 16.3 according to NBR 6925 |
Maximum Working Pressures for Unions according
to ASME/ ANSI B 16.39 according to NBR 6925 |
| |
Nominal Diameter |
Nominal Diameter |
| ºC |
1/4 to 1 |
1 1/4 to 2 |
2 1/4 to 3 |
1/4 to 4 |
| PSI |
PSI |
PSI |
PSI |
-26 to 66 |
2000 |
1500 |
1000 |
600 |
93 |
1785 |
1350 |
910 |
550 |
121 |
1575 |
1200 |
825 |
505 |
149 |
1360 |
1050 |
735 |
460 |
177 |
1150 |
900 |
650 |
415 |
204 |
935 |
750 |
560 |
370 |
232 |
725 |
600 |
475 |
325 |
260 |
510 |
450 |
450 |
280 |
288 |
300 |
300 |
300 |
230 |
 |
|
|
|
|
|
