AAES, Inc. - USA
A7227 Lawndale

AHouston, TX 77012
APhone: (713)928-5311
AFax: (713)928-5309
A



PRESSURE AND TEMPERATURE RATINGS

Maximum Allowable Non-Shock Pressure, psig.
ANSI/ASME B 16.34-1988

Class 900, 1500, & 2500

Service
Temperature

Class 900
Class 1500
Class 2500
°F
°C
WCB
(a)
WC1
(b)
WC6
(c)
WC9
(c)
C5
WCB
(a)
WC1
(b)
WC6
(c)
WC9
(c)
C5
WCB
(a)
WC1
(b)
WC6
(c)
WC9
(c)
C5
-20 to
100
200
300
-29 to
38
93
149
2220

2025
1970

2085

2035
1955

2250

2135
2020

2250

2150
2030
2250

2250
2185

3705

3375
3280

3470

3395
3260
3750

3560
3365
3750

3580
3385
3750

3750
3640

6170

5625
5470

5785

5660
5435
6250

5965
5640
6250

5965
5640
6250

6250
6070
400
500
600
204
260
316
1900
1795
1640
1920
1865
1815
1975
1925
1815
1945
1920
1815
2115
1995
1815
3170
2995
2735
3200
3105
3025
3290
3210
3025
3240
3200
3025
3530
3325
3025
5280
4990
4560
5330
5180
5040
5400
5330
5040
5400
5330
5040
5880
5540
5040
650
700
750
343
371
399
1610
1600
1510
1765
1705
1595
1765
1705
1595
1765
1705
1595
1765
1705
1595
2685
2665
2520
2940
2840
2660
2940
2840
2660
2940
2840
2660
2940
2840
2660
4475
4440
4200
4905
4730
4430
4905
4730
4430
4905
4730
4430
4905
4730
4430
800
850
900
427
454
482
1235
805
515
1525
1460
1350
1525
1460
1350
1525
1460
1350
1490
1315
1060
2060
1340
860
2540
2435
2245
2540
2435
2245
2540
2435
2245
2485
2195
1765
3430
2230
1430
4230
4060
3745
4230
4060
3745
4230
4060
3745
4145
3660
2945
950
1000
1050
510
538
566
310
155
845
495

1130
670
410
1130
805
595
780
575
420
515
260

1405
825

1885
1115
685
1885
1340
995
1305
960
705
860
430

2345
1370

3145
1860
1145
3145
2230
1660
2170
1600
1170
1100
1150
1200
593
621
649
 
290


340


310
205
135
   
480


565


515
345
225
800


945


860
570
370

Hydrostatic
Shell
Test Pressure

3350
3150
3375
5575
5225
5625
9275
8700
9375

Valve
Closure
Test
Pressure

Fluid
2442
2294
2475
4076
3817
4125
6787
6365
6875
Gas
80
80

80

Notes: (a)—Permissible, but not recommended for prolonged usage above about 427°C (800°F).
(b)—Permissible, but not recommended for prolonged usage above about 454°C (850°F).
(c)—Not to be used over 1100°F.
* For welded end valves only. Flanged end ratings terminate at 538°C (1000°F).