Mounting Of The Meter Into The Pipeline, Pressure Check - aqua metro DOMINO ARD Instructions De Montage Et Mode D'emploi

Only in case of modifying an existing plant:
• Rinse previously the installation and put it out of service.
• Close the valves shutting the insertion section.
• Make sure that a starting-up by other persons is impossible while mounting.
• When handling matters hazardous to people protect absolutely eyes, skin and clothes.
• Place a collecting trough under the installation.
• No chemicals, oils or other matter dangerous to the environment may reach neither the water nor the soil.
• Cut the pipeline and prepare it for the insert of the flow meter.
• In case of welding, cutting and grinding pay attention to the risk of fire/deflagration. Remove inflammable matter and liquids from the
place of operation.
• Prepare the pipe section for the length prescribed for the measuring unit.
• When using copper- or thinwalled steel-tubes fasten the meter additionally.
• Install the strainer/pre-filter, if necessary a distance piece.
• Put the installation into operation. Open the shut valves slowly.
• Proceed to a pressure and tightness check.
• Rinse the installation properly.
• Remove the pressure and put the installation out of service.

Mounting of the meter into the pipeline, pressure check

• When mounting the meter into the pipeline pay attention to point "Preparation for the mounting".
• Remove protection plugs on the meter.
• Measurement of heavy fuel oil with ARD../1223-A2 or ARD ../1228-A2:
If a strainer with a mesh width of max. 0,5 mm is installed, the safety filter may be removed from the meter inlet. Insert the meter into
the pipeline in the prescribed position and flow direction.
Meter with threaded ends
On ARD 4XXX (synthetic) tighten the flange screws with a max. torque of
• DN 25 = 30 Nm (3 kgm)
• DN 40 = 60 Nm (6 kgm)
Retighten the screws of measuring chamber, both nominal diameters with 6 Nm (0,6 kgm).
If another pressure test is done after mounting the meter, following pressure is admitted for a short period:
Nominal pressure Test load
(PN)
10 bar 16 bar
16 bar 25 bar
25 bar 40 bar
40 bar 60 bar
DOMINO ARD, AMD, PMD
565043
Meter with flanges
565044
565051
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