Flomec Oval Gear, Руководство по эксплуатации

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2.8 Commissioning
Once the meter has been mechanically and electrically installed in accordance with this
instruction manual, the meter is ready for commissioning.
The newly installed meter must NOT be run until the piping is completely flushed of
foreign materials. The most common foreign matter that is present in new or modified
piping is; welding slag, grinding dust, sealing tape/compound, and surface rust. If your
piping has been designed with a bypass line it will be easy to isolate your meter from the
remainder of the system to flush out the majority of the piping. If you have not installed a
bypass line around the meter, the best solution is to replace the meter with a spool-piece
for the duration of the flushing procedure.
The other critical concern when commissioning a meter is the presence of air slugs; this is
also a concern for any systems that have been shut down for long periods of time. Do not
start up your system for the first time by opening all valves and turning on the pump.
To safely start a meter for the first time, the best procedure is to eliminate the majority of
the air volume in your piping system using the bypass line described earlier. After bleeding
the majority of the air through the bypass line, the remainder of the air can be slowly
passed through the meter by gently opening the flow control valve downstream of the
meter. If a bypass line has not been incorporated into your system, and no alternative exists
for bleeding air upstream of the meter, then the entire air volume of your piping will need
to be bled very slowly through the valve downstream of the flowmeter.
Following the start-up procedure, and during the period of initial operation, it is
recommended that the inlet strainer on your meter be inspected regularly, and cleaned if
necessary, as it is possible that not all foreign material will be completely removed from
your system during the initial flushing.