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Pressure Temperature Rating as per ASME/ANSI B16.34
 

A 182 F316    
A 351 CF3M(g)
A 351 CF8M

Notes :

(g)  
 
Not to be used over 850° F.

STANDARD CLASS
Temperature° F Working Pressure by Classes PSIG
150 300 400 600 900 1500 2500
-20 to 100 275 720 960 1440 2160 3600 6000
200 240 600 825 1240 1860 3095 5160
300 215 560 745 1120 1680 2795 4660
400 195 515 685 1030 1540 2570 4230
500 170 480 635 955 1435 2390 3980
               
600 140 450 600 905 1355 2255 3760
650 125 445 590 890 1330 2220 3700
700 110 430 575 865 1295 2160 3600
750 95 425 565 845 1270 2110 3520
800 80 415 555 830 1245

2075

 3460
               
850 65 405 540 810 1215 2030 3280
900 50 395 525 790 1180 1970 3280
950 35 385 515 775 1160 1930 3220
1000 20 365 485 725 1190 1820 3030
1050 20(1) 360 480 720 1180 1800 3000
  Gate Valve
  Globe Valve
  Non Return Valve
  Ball Valve
  Butterfly Valve
  Diaphragm Valve
  Strainer Valve
  Needle Valve
 
1100 20(1) 325 430 645 965 1610 2685
1150 20(1) 275 365 550 825 1370 2285
1200 20(1) 205 275 410 620 1030 1715
1250 20(1) 180 245 365 545 910 1515
1300 20(1) 140 185 275 410 685 1145
1350 20(1) 105 140 205 310 515 860
1400 20(1) 75 100 150 225 380 630
1450 20(1) 60 80 115 175 290 485
1500 15(1) 40 55 85 125 205 345
 

Notes :

1. 
For welding end valves only. Flanged ends ratings terminate at 1000° F.
 
SPECIAL CLASS
Temperature° F Working Pressure by Classes PSIG
150 300 400 600 900 1500 2500
-20 to 100 290 750 1000 1500 2250 3750 6250
200 260 668 910 1365 2045 3410 5680
300 235 610 810 1220 1825 3045 5070
400 220 570 760 1140 1710 2850 4750
500 205 530 710 1065 1595 2660 4430
               
600 195 505 670 1010 1560 2520 4195
650 190 495 660 985 1480 2465 4110
700 185 485 645 970 1455 2240 4035
750 180

470

 630 945 1405 2360 3930
800 180 465 620 925 1390

2320

 3860
               
850 175 455 605 905 1360 2265 3775
900 170 440 585 880 1320 2195 3660
950 165 430 575 865 1295 2155 3595
1000 160 420 560 840 1280 2105 3505
1050 160 420 560 840 1260 2105 3305
1100 155 405 540 805 1210 2015 3360
1150 130 345 460 685 1030 1715 2860
1200 100 260 345 515 770 1285 2145
1250 90 230 305 455 680 1135 1895
1300 65 170 230 345 515 860 1430
               
1350 50 130 170 260 385 345 1070
1400 35 95 125 190 285 470 785
1450 30 75 100 145 200 365 610
1500 20 50 70 105 155 260 430

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