Flange Pressure and Temperature Ratings, B16.5
The following table is the maximum allowable non-shock pressure and temperature ratings for various flanges:
Flange Pressure and Temperature Ratings, B16.5 |
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ANSI Class Temperature oF |
Maximum Allowable Non-Shock Pressure PSIG | ||||||
150 | 300 | 400 | 600 | 900 | 1500 | 2500 | |
-20 to 100 | 285 | 740 | 985 | 1480 | 2220 | 3705 | 6170 |
200 | 260 | 680 | 905 | 1360 | 2035 | 3395 | 5655 |
300 | 230 | 655 | 870 | 1310 | 1965 | 3270 | 5450 |
400 | 200 | 635 | 845 | 1265 | 1900 | 3170 | 5280 |
500 | 170 | 605 | 805 | 1205 | 1810 | 3015 | 5025 |
600 | 140 | 570 | 755 | 1135 | 1705 | 2840 | 4730 |
650 | 125 | 550 | 730 | 1100 | 1650 | 2745 | 4575 |
700 | 110 | 530 | 710 | 1060 | 1590 | 2655 | 4425 |
750 | 95 | 505 | 675 | 1015 | 1520 | 2535 | 4230 |
800 | 80 | 410 | 550 | 825 | 1235 | 2055 | 3430 |
850 | 65 | 320 | 425 | 535 | 640 | 955 | 2655 |
900 | 50 | 230 | 305 | 460 | 690 | 1150 | 1915 |
950 | 35 | 135 | 185 | 275 | 410 | 685 | 1145 |
1000 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
- This table is in accordance with ANSI B16.5 (2003) maximum allowable non-shock pressure (psig) and temperature ratings for Group 1.1 Materials. There are several notes associated with this, and other tables in ASME B16.5 that need to be verified by the engineer prior to specification. For example, A105 is permitted for use over 800°F but not recommended.
- Based on American Society of Mechanical Engineers - ASME B16.5
Tags: Pipe Flange