PRESSURE/TEMPERATURE RATING
|
Maximum
Temperature Of
|
Working
Pressure, psig
|
|
Carbon
Steel
|
316
SS
|
|
-20
to 100
200
300
|
285
260
230
|
275
235
215
|
|
400
500
600
|
200
170
140
|
195
170
140
|
|
650
700
750
|
125
110
95
|
125
110
95
|
|
800
850
900
|
80
Note
A
---
|
80
65
50
|
950
1000 |
---
--- |
35
20 |
|
|
VALVE
SEATING/UNSEATING TORQUES
|
Valve |
Half-Rated |
Full-Rated |
|
Size |
at 150 psi. |
at 285 psi. |
|
|
in.-lb. |
in.-lb. |
|
3 |
812 |
1,540 |
|
4 |
11,165 |
2,210 |
|
6 |
2,209 |
4,190 |
|
8 |
3,144 |
5,965 |
|
10 |
4,585 |
8,700 |
|
12 |
9,434 |
17,900 |
|
14 |
11,753 |
22,300 |
|
16 |
14,809 |
28,100 |
|
18 |
19,773 |
37,520 |
|
20 |
25,797 |
48,950 |
|
24 |
28,037 |
53,200 |
|
30 |
70,000 |
112,000 |
|
36 |
100,000 |
160,000 |
|
40 |
122,000 |
214,000 |
|
42 |
135,000 |
220,000 |
|
46 |
173,000 |
303,000 |
|
48 |
182,000 |
320,000 |
|
54 |
193,000 |
|
|
60 |
320,000 |
|
|
See notes B,C
|