General Design Specifcations
Items
American Std.
British Std.
Shell wall thickness and general valve design
API 600
BS 1414 (Gate valve)
BS 1873 (Globe valve)
BS 1868 (Check valve)
Pressure-temperature ratings
ASME B16.34
BS 1560
Face-to-face dimensions
End-to-end dimensions
ASME B16.10
BS 2080
End flange dimensions
Gasket contact facing
ASME B16.5*
BS 1560
Welding end dimensions
ASME B16.25
BS 1414 (Gate valve)
BS 1873 (Globe valve)
BS 1868 (Check valve)
*MSS SP-44 for Nominal size 22 and ASME B16.47 Series B for Nominal size 26 and larger, for end flange dimensions.
Valve Shell Materials
Besides ASTM A216 WCB, the standard material, KITZ cast steel valves are optionally available with the materials listed below:
ASTM Specification
Material Designation
Working Temperature*°F(°C)
KITZ code
A216WCB
Carbo steel
100(538) Maximum
-
A217WC1
C-1/2Mo
1C
A217WC6
1 1/4Cr-1/2MO
1100(593) Maximum
6C
A217WC9
2 1/4Cr-1MO
9C
A217C5
5Cr-1/2MO
1200(649) Maximum
5C
A217C12
9Cr-1MO
12C
A352LCB
Carbon steel
-50(-46)Minimum
BL
A352LCC
Carbon steel
CL
A352LC1
C-1/2MO
-75(-59)Minimum
1L
A352LC2
2 1/2 Ni-100
-100(-73)Minimum
2L
A352LC3
3 1/2 Ni-150
-150(-101)Minimum
3L
For ASTM A351 Austenitic Stainless Valves, refer to KITZ Cat.No.E-150.
*Refer to ASME B16.34 for details of ASTM A216, A217 and A352 Pressure-temperature ratings.
 The minimum working temperatures of ASTM A352 are based on ASME B31.3.
Pressure-Temperature Ratings(For reference only)
Valves-Flanged and Welding End: Standard Class
ASTM Material Standard-to ASME B16.34 2009
Temperature
Class 150
°C
WCB
(a)
WC6
(b)
C5
(c)
C12
(c)
LCC
(d)
bar
bar
bar
bar
bar
-29 to 38
19.6
19.8
20.0
20.0
19.8
50
19.2
19.5
19.5
19.5
19.5
100
17.7
17.7
17.7
17.7
17.7
150
15.8
15.8
15.8
15.8
15.8
200
13.8
13.8
13.8
13.8
13.8
250
12.1
12.1
12.1
12.1
12.1
300
10.2
10.2
10.2
10.2
10.2
325
9.3
9.3
9.3
9.3
9.3
350
8.4
8.4
8.4
8.4
8.4
375
7.4
7.4
7.4
7.4
7.4
400
6.5
6.5
6.5
6.5
6.5
425
5.5
5.5
5.5
5.5
5.5
450
4.6
4.6
4.6
4.6
4.6
475
3.7
3.7
3.7
3.7
3.7
500
2.8
2.8
2.8
2.8
2.8
538
1.4
1.4
1.4
1.4
1.4
550
 
1.4 (e)
1.4 (e)
1.4 (e)
 
575
 
1.4 (e)
1.4 (e)
1.4 (e)
 
600
 
 
1.4 (e)
1.4 (e)
 
625
 
 
1.4 (e)
1.4 (e)
 
650
 
 
0.9 (e)
1.4 (e)
 
(a)
Upon prolonged exposure to temperatures above 425°C, the carbide phase of steel may be converted to graphite.
Permissible, but not recommended for prolonged usage above 425°C.
(b)
Use normalized and tempered material only. Not to be used over 595°C. The deliberate of any element not listed in ASTM A 217,
Table 1 is prohibited, except that Ca and Mg may be added for deoxidation.
(c)
Use normalized and tempered material only. The deliberate of any element not listed in ASTM A 217,
Table 1 is prohibited, except that Ca and Mg may be added for deoxidation.
(d)
Not to be used over 345°C.
(e)
Flanged-end valve ratings terminate at 538°C.