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Duo-ChekValves
Size
A
B
C
D
Weight
in mm in mm in mm in mm in mm lbs. kg.
2"
50 4
1
⁄
8
105 2
3
⁄
8
60 1
15
⁄
16
49 – –
6 3
2
1
⁄
2
" 65 4
7
⁄
8
124 2
5
⁄
8
67 2
11
⁄
32
60 – – 10 5
3"
80 5
3
⁄
8
137 2
7
⁄
8
73 2
29
⁄
32
74
1
⁄
4
6 13 6
4" 100 6
7
⁄
8
175 2
7
⁄
8
73 3
53
⁄
64
97
5
⁄
8
16 17 8
5" 125 7
3
⁄
4
197 3
3
⁄
8
86 4
13
⁄
16
122
7
⁄
8
22 27 12
6" 150 8
3
⁄
4
222 3
7
⁄
8
98 5
49
⁄
64
146 1
3
⁄
8
35 35 16
8" 200 11 279 5 127 7
5
⁄
8
194 2
1
⁄
8
54 70 32
10" 250 13
3
⁄
8
340 5
3
⁄
4
146 9
9
⁄
16
243 2
3
⁄
4
70 106 48
12" 300 16
1
⁄
8
410 7
1
⁄
8
181 11
3
⁄
8
289 3
1
⁄
4
83 172 78
14" 350 17
3
⁄
4
451 7
1
⁄
4
184 12
1
⁄
2
318 3
1
⁄
4
83 200 91
16" 400 20
1
⁄
4
514 7
1
⁄
2
191 15
381 4
7
⁄
16
113 275 125
18" 450 21
5
⁄
8
549 8 203 16
7
⁄
8
429 5
3
⁄
8
137 315 143
20" 500 23
7
⁄
8
606 8
5
⁄
8
219 18
13
⁄
16
478 6
5
⁄
16
160 435 197
24" 600 28
1
⁄
4
718 8
3
⁄
4
222 22
5
⁄
8
575 8
1
⁄
4
210 620 281
26" 650 30
1
⁄
2
775 14 356 24
1
⁄
4
616 8
203 1555 705
30" 750 34
3
⁄
4
883 13 330 29
1
⁄
4
743 9 229 1230 558
36" 900 41
1
⁄
4
1048 15
1
⁄
4
387 35
889 11
15
⁄
16
303 2017 915
42" 1050 48 1219 17 432 41 1041 15 381 2800 1270
48" 1200 54
1
⁄
2
1384 20
5
⁄
8
524 47 1194 16
3
⁄
4
425 3920 1178
54" 1350 61 1549 21
1
⁄
4
540 51
1
⁄
2
1308 19
3
⁄
4
502 6172 2800
60" 1500 67
1
⁄
2
1715 26
660 56 1422 – – 7800 3538
66" 1650 74
1
⁄
4
1886 31 787 65
1
⁄
4
1657 – – 12000 5443
72" 1800 80
3
⁄
4
2051 36 914 68 1727 –
– 14000 6350
StyleG InstallationDimensions
StyleGwaferstylebodyvalvesaredesignedwithflangeless
bodies with relatively short face-to-face dimensions. They
are clamped betweenmating flanges which are connected
by studs and nuts.
Duo-Cheks areavailable in accordancewithDIN, BS, JIS,AS and ISODimensions.For other sizes and pressure classes contact factory.
Class 125 face-to-face dimensions 2-
½
"-12" are thinner than the requirements ofAPI 594.
ASMEClass 150
Size
A
B
C
D
Weight
in mm in mm in mm in mm in mm lbs. kg.
2"
50 4
1
⁄
8
105 2
1
⁄
8
54 2
1
⁄
16
52 – –
4 1.8
2
1
⁄
2
" 65 4
7
⁄
8
124 2
1
⁄
8
54 2
15
⁄
32
63 – –
6 2.7
3"
80 5
3
⁄
8
137 2
1
⁄
4
57 3
1
⁄
16
78
5
⁄
8
16
7 3.2
4" 100 6
7
⁄
8
175 2
1
⁄
2
64 4
102 1
25 12 5.4
5" 125 7
3
⁄
4
197 2
3
⁄
4
70 5
127 1
5
⁄
16
33 15 6.8
6" 150 8
3
⁄
4
222 3
76 6
1
⁄
16
154 1
15
⁄
16
35 20 9
8" 200 11 279 3
3
⁄
4
95 8
203 3
7
⁄
16
54 40 18
10" 250 13
3
⁄
8
340 4
1
⁄
4
108 10
254 3
3
⁄
8
70 65 29
12" 300 16
1
⁄
8
410 5
5
⁄
8
143 11
15
⁄
16
303 3
9
⁄
16
83 110 50
14" 350 17
3
⁄
4
451 7
1
⁄
4
184 12
1
⁄
2
318 3
1
⁄
16
83 183 83
16" 400 20
1
⁄
4
514 7
1
⁄
2
191 15
381 4
1
⁄
4
113 255 116
18" 450 21
5
⁄
8
549 8 203 16
7
⁄
8
429 5
3
⁄
8
137 315 143
20" 500 23
7
⁄
8
606 8
3
⁄
8
213 18
13
⁄
16
478 6
3
⁄
16
160 380 172
24" 600 28
1
⁄
4
718 8
3
⁄
4
222 22
5
⁄
8
575 8
1
⁄
4
210 575 261
30" 750 34
3
⁄
4
883 12 305 29
1
⁄
4
743 9
9
⁄
16
229 1070 486
36" 900 41
1
⁄
4
1048 14
1
⁄
2
368 35
889 12
5
⁄
16
303 1962 890
42" 1050 48 1219 17 432 41 1041 15 381 2800 1270
48" 1200 54
1
⁄
2
1384 20
5
⁄
8
524 47 1194 16
3
⁄
4
425 3920 1178
54" 1350 61 1549 21
1
⁄
4
540 51
1
⁄
2
1308 19
3
⁄
4
502 6172 2800
60" 1500 67
1
⁄
2
1715 26
660 56 1422 –
– 7800 3538
66" 1650 74
1
⁄
4
1886 31 787 65
1
⁄
4
1657 –
– 12000 5443
72" 1800 80
3
⁄
4
2051 36 914 68 1727 –
– 14000 6350
ASMEClass125 (Cast Iron valvesonly)
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