SHF - 8103 Red Bluff Rd - Pasadena TX 77507

832 456 2000

NPT PRESSURE RATINGS, ANSI/ASME B31.3

NPT Pressure Ratings, ANSI/ASME B 31.3
SIZE
DESIGNATOR
NPT
SIZE
316 STAINLESS STEEL
BRASS
CARBON STEEL
MALE
FEMALE
MALE
FEMALE
MALE
FEMALE
PSIG
BAR
PSIG
BAR
PSIG
BAR
PSIG
BAR
PSIG
BAR
PSIG
BAR
1
1/16
11000
757
6700
461
5500
378
3300
227
11000
757
6700
461
2
1/8
10000
689
6500
447
5000
344
3200
220
10000
689
6500
447
4
1/4
8000
551
6600
454
4000
275
3300
227
8000
551
6600
454
6
3/8
7800
537
5300
365
3900
268
2600
179
7800
537
5300
365
8
1/2
7700
530
4900
337
3800
261
2400
165
7700
530
4900
337
12
3/4
7300
502
4600
316
3600
248
2300
158
7300
502
4600
316
16
1
5300
365
4400
303
2600
179
2200
151
5300
365
4400
303
20
1 1/4
6000
413
5000
344
3000
206
2500
172
6000
413
5000
344
24
1 1/2
5000
344
4600
316
2500
172
2300
158
5000
344
4600
316
32
2
3900
268
3900
268
1900
130
1900
130
3900
268
3900
268