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Piping work
WARNING
The mass of this device is 7 to 23 kg according to the model number.
Ensure to take complete precautions and care while handling for transportation or installation.
For safe handling, two or more persons are required while handling this device.
Accidental dropping of the device on the foot might cause injury.
CAUTION
Do not flush when the device is mounted in the pipe. Doing so might cause damage due to entry of
foreign matter and cause faulty operation or errors in measurement.
When connecting flanges, tighten with the specified torque.
Otherwise gas could leak from the pipe, causing injury.
Handling precautions
•
When connecting to piping, be sure to check before installation that there is
no inclination or displacement of the pipes. Failure to do so might cause leak-
age or measurement error.
•
Be sure to flush (cleaning the inside of pipe) before installation this device to
eliminate any foreign matter which might exist inside the pipe.
•
When installing, pay special attention to the flow direction.
Flow direction
Flange
Flange
(Example: MVF100_S)
Gasket
Gasket
Spacers
To mount this device, sandwich it between two pipe flanges (wafer mounting).
Note that spacers should be used to prevent displacement during mounting. The
use of spacers enables proper alignment of the piping and this device. Be sure to
use the spacers.
Notes for mounting
MVF _ _ _ _ C
• Attach the spacers to the inside of both flanges.
• Be sure to place the spacers into both grooves between the wafer and the flange so
that the wafer and the pipes are correctly aligned.
spacers
Wafer
Groove
flange
The number of spacers varies depending on
the model.
MVF050_S
: 4
MVF050_C
: 8
MVF080_S/MVF100_S/MVF150_S
: 6
MVF080_C/MVF100_C/MVF150_C
: 12
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Chapter 3. INSTALLATION, MOUNTING, WIRING
