|
PRESSURE/TEMPERATURE RATING |
|
Maximum
Temperature |
Working
Pressure, psig |
|
Of |
Carbon
Steel |
316SS |
|
-20 to 100 |
1,480 |
1,440 |
|
200 |
1,350 |
1,240 |
|
300 |
1,315 |
1,120 |
|
400 |
1,270 |
1,025 |
|
500 |
1,200 |
955 |
|
600 |
1,095 |
900 |
|
650 |
1,075 |
890 |
|
700 |
1,065 |
870 |
|
750 |
1,010 |
855 |
|
800 |
825 |
845 |
|
850 |
Note A |
835 |
|
900 |
|
830 |
|
950 |
|
775 |
|
1000 |
|
700 |
|
1050 |
|
685 |
|
1100 |
|
610 |
|
1150 |
|
475 |
|
1200 |
|
370 |
|
1250 |
|
295 |
|
1300 |
|
235 |
|
1350 |
|
190 |
|
1400 |
|
150 |
|
1450 |
|
115 |
|
1500 |
|
85 |
|
|
VALVE
SEATING/UNSEATING TORQUES |
|
Valve |
Half Rated
at 740 psi |
Full-Rated
at 1480
psi |
|
Size |
in.-Ib. |
in.-Ib. |
|
6 |
13,000 |
26,000 |
|
8 |
16,000 |
32,000 |
|
10 |
25,000 |
50,000 |
|
12 |
52,500 |
105,000 |
|
14 |
62,500 |
125,000 |
|
16 |
75,500 |
151,000 |
|
18 |
93,000 |
186,000 |
|
20 |
118,000 |
235,000 |
|
24 |
170,000 |
340,000 |
See notes B,C
|