Installation instructions
Piping
• Ensure that all measuring and ancillary instruments can be easily operated and values read off.
• The RUBIN Meistream / -Plus requires no inlet or outlet paths.
• The pipe diameter should not be reduced directly in front of or behind the meter.
• All regulation of the flow should be done behind the meter.
• When choosing the installation site watch the requirements for fitting position(horizontal/vertical/inclined)!
• The layout of the piping must ensure that all measuring instruments are filled with liquid at all times and that no air bubbles are present.
Dimensioning the measuring instruments and ancillary instruments
Flowmeters must be appropriately dimensioned according to the conditions of the facility. Alter the piping specifications if necessary. All
flowmeters and ancillary instruments are to be dimensioned according to maximum operating conditions. Of special importance are:
• flowrate
• operating pressure
• operating temperature
• ambient temperature
In buildings where minus temperatures may occur meters should be fully drained before the onset of freezing temperatures.
The meter must be protected from water hammer by appropriate measures.
Mounting
• Purge the piping at high pressure before mounting. Use spacers instead of counters for new or updated piping.
• The meter must be installed in the pipe free of stress.
• Flange gaskets must not protrude into the bore of the pipe.
• Ensure that the meter is installed in the pipe with the flow direction indicated on thebody matching the flow direction in the pipe.
Commissioning
• When commissioning and after every emptying procedure, open the valve slowly in order to prevent water hammer. Continuous overload
will lead to damage of the unit.
• The manufacturer's value for Q
should not be exceeded for extended periods.
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• The maximum temperature of the medium should not be exceeded.
RUBIN
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