2
INSTALLATION
16
OPTIFLUX 4000
www.krohne.com
10/2021 - 4003872405 - QS OPTIFLUX 4000 R08 en
Nominal
size
[inch]
Flange
class
[lb]
Bolts
2
Max. torque [in-lb]
1
PFA
PTFE
ETFE
PU
Hard
rubber
Soft
rubber
1/10
150
4 x 1/2"
39
-
-
-
-
-
1/6
150
4 x 1/2"
39
-
-
-
-
-
1/4
150
4 x 1/2"
39
-
-
-
-
-
3/8
150
4 x 1/2"
39
39
-
-
-
-
1/2
150
4 x 1/2"
34
34
-
-
-
-
3/4
150
4 x 1/2"
-
50
-
-
-
-
1
150
4 x 1/2"
67
67
67
-
-
-
1 1/4
150
4 x 1/2"
97
97
97
-
-
-
1 1/2
150
4 x 1/2"
138
138
138
-
-
-
2
150
4 x 5/8"
225
225
225
-
-
158
3
150
4 x 5/8"
380
380
380
-
-
283
4
150
8 x 5/8"
300
300
300
-
-
207
6
150
8 x 3/4"
540
540
540
-
-
328
8
150
8 x 3/4"
-
979
979
818
818
418
10
150
12 x 7/8"
-
1104
1104
923
923
601
12
150
12 x 7/8"
-
1478
1478
1237
1237
676
14
150
12 x 1"
-
1835
1835
1538
1538
909
16
150
16 x 1"
-
1767
1767
1481
1481
1141
18
150
16 x 1 1/8"
-
2605
2605
2183
2183
1100
20
150
20 x 1 1/8"
-
2365
2365
1984
1984
1618
24
150
20 x 1 1/4"
-
3419
3419
2873
2873
1479
28
150
28 x 1 1/4"
-
2904
2904
-
3
*
2155
32
150
28 x 1 1/2"
-
4560
4560
-
*
-
36
150
32 x 1 1/2"
-
-
3
*
-
*
-
40
150
36 x 1 1/2"
-
-
*
-
*
-
1
The specified torque values are dependent on variables (temperature, bolt material, gasket material,
lubricants, etc.) which are not within the control of the manufacturer. Therefore the values should be re-
garded as indicative only.
2
F= ASTM gr B7 Studbolts - F=0.14 - Carbon steel flanges
3
Information * ; please contact the support service department
INFORMATION!
Other sizes / pressure ratings on request.
CAUTION!
•
Pressures are applicable at 20
°
C / 68
°
F.
•
For higher temperatures, the pressure ratings are as per ASME B16.5.