15
T: 936-588-8350 • F: 936-588-8381 • www.craneenergy.com
Duo-ChekValves
API 6A InstallationandStudSelection
NOTES:
Dimensions for 10000 and 15000 ratings available on request.
2
1
⁄
16
"
8
5
⁄
8
16 8
203
2
9
⁄
16
"
8
3
⁄
4
19 9
229
3
1
⁄
8
"
8
3
⁄
4
19 9
1
⁄
2
241
4
1
⁄
16
"
8
7
⁄
8
22 11
1
⁄
2
292
7
1
⁄
16
"
12 1
25 14
356
9"
12 1
1
⁄
8
29 17
432
11"
16 1
1
⁄
4
32 19
483
13
5
⁄
8
"
20 1
1
⁄
4
32 23
3
⁄
4
546
Size No. of
B
C
in
Studs in mm in mm
API StudSelection - Class 2000
2
1
⁄
16
"
8
7
⁄
8
22 9
1
⁄
4
235
2
9
⁄
16
"
8 1
25 11
1
⁄
4
286
3
1
⁄
8
"
8
7
⁄
8
22 11
1
⁄
2
292
4
1
⁄
16
"
8 1
1
⁄
8
29 12
305
7
1
⁄
16
"
12 1
1
⁄
8
29 15
1
⁄
4
387
9"
12 1
3
⁄
8
35 18
3
⁄
4
476
11"
16 1
3
⁄
8
35 20
508
13
5
⁄
8
"
20 1
3
⁄
8
35 21
1
⁄
2
591
Size No. of
B
C
in
Studs in mm in mm
API StudSelection - Class 3000
2
1
⁄
16
"
8
7
⁄
8
22 9
1
⁄
4
235
2
9
⁄
16
"
8 1
25 11
1
⁄
4
286
3
1
⁄
8
"
8 1
1
⁄
8
29 12
305
4
1
⁄
16
"
8 1
1
⁄
4
32 13
330
7
1
⁄
16
"
12 1
3
⁄
8
35 18
3
⁄
4
476
9"
12 1
5
⁄
8
41 21
533
11"
12 1
7
⁄
8
48 24
1
⁄
2
622
Size No. of
B
C
in
Studs in mm in mm
API StudSelection - Class 5000
2
1
⁄
16
"
5
5
⁄
8
143 2
3
⁄
4
70 1
11
⁄
16
43 15
7
2
9
⁄
16
"
6
1
⁄
2
165 3
1
⁄
4
83 2
1
⁄
8
54 22 10
3
1
⁄
8
"
6
7
⁄
8
175 3
3
⁄
8
86 2
5
⁄
8
67 31 14
4
1
⁄
16
"
8
1
⁄
4
210 4
1
⁄
8
105 3
7
⁄
16
87 49 22
7
1
⁄
16
"
11
1
⁄
8
283 6
1
⁄
4
159 5
3
⁄
16
132 190 86
9"
13
7
⁄
8
352 8
1
⁄
8
206 6
13
⁄
16
173 285 129
11"
17
1
⁄
8
435 10 254 8
1
⁄
2
216 502 228
Size
A
B
C
Weight
in
in mm in mm in mm lbs.
kg.
API InstallationDimensions - Class 5000
2
1
⁄
16
"
4
3
⁄
8
143 2
3
⁄
4
70 1
11
⁄
16
43 14
6
2
9
⁄
16
"
5
1
⁄
8
130 3
1
⁄
4
83 2
1
⁄
8
54 16
7
3
1
⁄
8
"
5
7
⁄
8
149 3
1
⁄
4
83 2
5
⁄
8
67 24
11
4
1
⁄
16
"
7
5
⁄
8
194 4
102 3
7
⁄
16
87 40
18
7
1
⁄
16
"
10
1
⁄
2
267 6
1
⁄
4
159 5
3
⁄
16
132 115
52
9"
12
5
⁄
8
321 8
1
⁄
8
206 6
13
⁄
16
173 229 104
11"
15
3
⁄
4
400 9
1
⁄
2
241 8
1
⁄
2
216 388 176
13
5
⁄
8
"
18 457 11
1
⁄
2
292 10
1
⁄
8
257 540 245
Size
A
B
C
Weight
in
in mm in mm in mm lbs.
kg.
API InstallationDimensions - Class 2000
2
1
⁄
16
"
5
5
⁄
8
143 2
3
⁄
4
70 1
11
⁄
16
43 14
6
2
9
⁄
16
"
6
1
⁄
2
165 3
1
⁄
4
83 2
1
⁄
8
54 16
7
3
1
⁄
8
"
6
5
⁄
8
168 3
1
⁄
4
83 2
5
⁄
8
67 25 11
4
1
⁄
16
"
8
1
⁄
8
206 4
102 3
7
⁄
16
87 43 20
7
1
⁄
16
"
11
3
⁄
8
289 6
1
⁄
4
159 5
3
⁄
16
132 110 50
9"
14
1
⁄
8
359 8
1
⁄
8
206 6
13
⁄
16
173 219 99
11"
17
1
⁄
8
435 9
3
⁄
4
248 8
1
⁄
2
216 397 180
13
5
⁄
8
"
19
5
⁄
8
498 12
305 10
1
⁄
8
257 725 329
Size
A
B
C
Weight
in
in mm in mm in mm lbs.
kg.
API InstallationDimensions - Class 3000
#
"
$
.JOJNVN
'MBOHF
#PSF
#
$
.JO
Allowable leakage rates forAPI 6A (alsoAPI 6D)metal seated valves in accordancewithAPI 598.
