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Pressure rating ceiling values
Temperature |
Working Pressure |
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(°F) |
Class 150 |
Class 300 |
Class 400 |
Class 600 |
Class 900 |
Class 1500 |
Class 2500 |
-20 to 100 |
290 |
750 |
1000 |
1500 |
2250 |
3750 |
6250 |
200 |
260 |
750 |
1000 |
1500 |
2250 |
3750 |
6250 |
300 |
230 |
730 |
970 |
1455 |
2185 |
3640 |
6070 |
400 |
200 |
705 |
940 |
1410 |
2115 |
3530 |
5880 |
500 |
170 |
665 |
885 |
1330 |
1995 |
3325 |
5540 |
600 |
140 |
605 |
805 |
1210 |
1815 |
3025 |
5040 |
650 |
125 |
590 |
785 |
1175 |
1765 |
2940 |
4905 |
700 |
110 |
570 |
755 |
1135 |
1705 |
2840 |
4730 |
750 |
95 |
530 |
710 |
1065 |
1595 |
2660 |
4430 |
800 |
80 |
510 |
675 |
1015 |
1525 |
2540 |
4230 |
850 |
65 |
485 |
650 |
975 |
1460 |
2435 |
4060 |
900 |
50 |
450 |
600 |
900 |
1350 |
2245 |
3745 |
950 |
35 |
385 |
515 |
775 |
1160 |
1930 |
3220 |
1000 |
20 |
365 |
485 |
725 |
1090 |
1820 |
3030 |
1050 |
20(1) |
360 |
480 |
720 |
1080 |
1800 |
3000 |
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 |
| Pressure is given in psig (1) For butt welding ends valves only. Flange ratings end at 1000°F |
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| Warning These data are given for information, we do not assume any responsibility on designs or others that will be figured out of them. For further information please refer on your valve manufacturer's design data sheets. |
