15
promesstec GmbH
I Niedersachsenstraße 4 I D-48465 Schüttorf I Tel.:+49 (0)5923/ 90 229 0 I Fax:+49 (0)5923/ 90 229 29
E-Mail: [email protected] I Internet: www.promesstec.com
When a threaded connection is used, it is essential to check the thread on the sen-
sor, while it is being tightened, to prevent it from moving round a slight amount.
During installation, beware of:
-
dropping the meter onto the ground and damaging the measuring tube or
electronics
-
contamination of the electrodes (do not touch the electrodes, otherwise they
get contaminated)
-
when additional sealing is used, avoid its interference in the flow profile of the
detector between the flanges and the pipeline, otherwise the flow measure-
ment error may be increased
Tightening torques
It is absolutely necessary to tighten the bolts and nuts equally by alternating sides
and in the order shown in figure applying the maximum torque according to the table:
Diameter
nominal
PN 10
PN 16
DN
Screws
Tightening torque
[Nm]
Screws
Tightening torque [Nm]
Rubber
PTFE
Rubber
PTFE
10
4 x M12
10
15
4 x M12
10
15
15
15
20
15
20
20
20
25
20
25
25
20
25
20
25
32
4 x M16
20
25
4 x M16
20
35
40
20
25
20
35
50
20
45
20
45
65
20
46
20
46
80
8 x M16
20
48
8 x M16
20
48
100
20
50
20
50
125
20
80
20
65
150
8 x M20
24
90
8 x M20
27
90
200
27
115
12 x M20
35
80
250
12 x M20
35
95
12 x M24
55
100
300
50
100
80
110
350 16 x M20
60
70
16 x M24
95
105
400 16 x M24
75
120
16 x M27
140
150
