Mounting The Meter Tube - ABB FSM4000 Operating Instruction

Installation
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4.3

Mounting the meter tube

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The meter can be installed at any location in a pipeline under consideration of the installation
conditions.
Warning - Potential damage to device!
Use of graphite with the flange or process connection gaskets is prohibited. In some
instances, an electrically conductive coating may form on the inside of the measuring tube.
Vacuum shocks in the pipelines should be avoided to prevent damage to the liners (PTFE).
Vacuum shocks can destroy the meter.
1. Remove protective plates, if present, to the right and left of the measuring tube. To prevent
possible leakage, make sure that the liner on the flange is not cut or damaged.
2. Position the meter tube coplanar and centered between the pipes.
3. Install gaskets between the surfaces.
Important
For best results, make sure the flowmeter sensor gaskets fit concentrically with the measuring
tube.
4. Use the appropriate screws for the holes as per the section "Torque information".
5. Slightly grease the threaded nuts.
6. Tighten the nuts in a crosswise manner as shown in the figure. Observe the torque values
specified under "Torques".
First tighten the nuts to 50% of maximum torque, then to 80% and finally on the third time
tighten to the maximum. Do not exceed the max. torque.
Fig. 11
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22
1 3
8
4
4 2
FSM4000
5
1
3
7
6 2
G00034
D184B140U02