14
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Duo-ChekValves
2"
50
8
5
⁄
8
16 6
152 6
3
⁄
4
171
2
1
⁄
2
"
65
8
3
⁄
4
19 6
3
⁄
4
171 7
1
⁄
2
191
3"
80
8
3
⁄
4
19 7
178 8
203
4"
100
8
3
⁄
4
19 7
1
⁄
2
191 8
1
⁄
4
210
5"
125
8
3
⁄
4
19 8
1
⁄
4
210 9
229
6"
150 12
3
⁄
4
19 9
229 9
3
⁄
4
248
8"
200 12
7
⁄
8
22 10
1
⁄
2
267 11
1
⁄
4
286
10"
250 16
1
25 12
1
⁄
4
311 13 330
12"
300 16
1
1
⁄
8
29 14
356 14
3
⁄
4
375
14"
350 20
1
1
⁄
8
29 16
406 16
3
⁄
4
425
16"
400 20
1
1
⁄
4
32 17
432 17
3
⁄
4
451
18"
450 24
1
1
⁄
4
32 18
1
⁄
2
470 19
3
⁄
4
489
20"
500 24
1
1
⁄
4
32 19
3
⁄
4
502 20
1
⁄
2
521
24"
600 24
1
1
⁄
2
38 21
3
⁄
4
552 22
3
⁄
4
578
26"
650 28
1
5
⁄
8
41 24
1
⁄
4
616 25
1
⁄
4
641
30"
750 28
1
3
⁄
4
44 27
1
⁄
4
692 28
1
⁄
2
724
36"
900 32
2
51 32
1
⁄
4
819 15
1
⁄
2
851
42" 1050 36
2
51 36
1
⁄
2
927 37
3
⁄
4
959
48" 1200 40
2
51 40 1016 -
-
Valve No. of
B
C
D
Size Studs Bolt Diameter RaisedFace Ring Joint*
in mm
in mm in mm in mm
ASMEClasses250 (Cast Iron valvesonly) & 300
2"
50
8
1
25 10
254 10
254
2
1
⁄
2
"
65
8
1
1
⁄
8
29 11
1
⁄
4
286 11
1
⁄
4
286
3"
80
8
1
1
⁄
4
32 12
1
⁄
4
311 12
1
⁄
2
318
4"
100
8
1
1
⁄
2
38 14
1
⁄
4
362 14
3
⁄
4
375
6"
150
8
2
51 20
508 20
1
⁄
2
521
8"
200 12
2
51 23
3
⁄
4
603 24
610
10"
250 12
2
1
⁄
2
64 29
1
⁄
4
743 30
1
⁄
4
768
12"
300 12
2
3
⁄
4
70 33
1
⁄
4
845 34
1
⁄
4
870
2"
50
8
5
⁄
8
16 6
3
⁄
4
171 7
178
2
1
⁄
2
"
65
8
3
⁄
4
19 7
1
⁄
2
191 7
3
⁄
4
197
3"
80
8
3
⁄
4
19 8
203 8
1
⁄
4
210
4"
100
8
7
⁄
8
22 9
1
⁄
4
235 9
1
⁄
4
235
5"
125
8 1
25 10
3
⁄
4
273 11
279
6"
150 12 1
25 12
1
⁄
4
311 12
1
⁄
2
318
8"
200 12 1
1
⁄
8
29 14
1
⁄
4
362 14
1
⁄
2
368
10"
250 16 1
1
⁄
4
32 17
432 17
1
⁄
4
438
12"
300 20 1
1
⁄
4
32 18
457 18
457
14"
350 20 1
3
⁄
8
35 20
1
⁄
4
514 20
1
⁄
2
521
16"
400 20 1
1
⁄
2
38 22
1
⁄
4
565 22
1
⁄
2
572
18"
450 20 1
5
⁄
8
41 25
1
⁄
4
641 25
1
⁄
2
648
20"
500 24 1
5
⁄
8
41 26
660 26
1
⁄
4
667
24"
600 24 1
7
⁄
8
48 30
1
⁄
4
768 30
3
⁄
4
781
26"
650 28 1
7
⁄
8
48 31
1
⁄
2
800 32
813
30"
750 28 2
51 34
1
⁄
4
870 34
3
⁄
4
883
36"
900 28 2
1
⁄
2
64 41 1041 20
1
⁄
2
1060
42" 1050 28 2
3
⁄
4
70 47 1194 47
1
⁄
2
1207
Valve No. of
B
C
D
Size Studs Bolt Diameter RaisedFace Ring Joint
in mm
in mm in mm in mm
ASMEClass 600
2"
50
8
7
⁄
8
22 8
3
⁄
4
222 8
3
⁄
4
222
2
1
⁄
2
"
65
8 1
25 9
3
⁄
4
248 9
3
⁄
4
248
3"
80
8
7
⁄
8
22 9
1
⁄
4
235 9
1
⁄
4
235
4"
100
8 1
1
⁄
8
29 11
279 11 279
6"
150 12 1
1
⁄
8
29 14
356 14
1
⁄
4
362
8"
200 12 1
3
⁄
8
35 17
432 17
1
⁄
4
438
10"
250 16 1
3
⁄
8
35 19
483 19 483
12"
300 20 1
3
⁄
8
35 21
3
⁄
4
552 21
3
⁄
4
552
14"
350 20 1
1
⁄
2
38 25
635 25
1
⁄
2
648
16"
400 20 1
5
⁄
8
41 26
3
⁄
4
679 27 686
18"
450 20 1
7
⁄
8
48 30
3
⁄
4
781 31
1
⁄
2
800
20"
500 20 2
51 31
1
⁄
2
800 32
1
⁄
4
819
24"
600 20 2
1
⁄
2
64 36
3
⁄
4
933 37
1
⁄
4
946
Valve No. of
B
C
D
Size Studs Bolt Diameter RaisedFace Ring Joint
in mm
in mm in mm in mm
ASMEClass900
2"
50
8
7
⁄
8
22 8
3
⁄
4
222 8
3
⁄
4
222
2
1
⁄
2
"
65
8
1
25 9
3
⁄
4
248 9
3
⁄
4
248
3"
80
8
1
1
⁄
8
29 10
1
⁄
2
267 10
1
⁄
2
267
4"
100
8
1
1
⁄
4
32 12
305 12 305
6"
150 12
1
3
⁄
8
35 16
3
⁄
4
425 16
3
⁄
4
425
8"
200 12
1
5
⁄
8
41 19
3
⁄
4
502 20
1
⁄
4
514
10"
250 12
1
7
⁄
8
48 23
1
⁄
4
591 23
1
⁄
2
597
12"
300 16
2
51 27
686 27
3
⁄
4
705
14"
350 16
2
1
⁄
4
57 30
1
⁄
4
768 31
1
⁄
4
794
16"
400 16
2
1
⁄
2
64 33
838 34 864
18"
450 16
2
3
⁄
4
70 38
3
⁄
4
965 39 900
20"
500 16
3
76 43
3
⁄
4
1111 44
3
⁄
4
1137
24"
600 16
3
1
⁄
2
89 48
1219 49
1
⁄
4
1251
Valve No. of
B
C
D
Size Studs Bolt Diameter RaisedFace Ring Joint
in mm
in mm in mm in mm
ASMEClass 1500
Valve No. of
B
C
D
Size Studs Bolt Diameter RaisedFace Ring Joint
in mm
in mm in mm in mm
ASMEClass 2500
StylesG andHStudSelection
*Available inClass 300only.
Stud dimensions apply to stylesG&H for Lug style thru-hole bolting design.
