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Meter installation in a pressure recovery application
The most common location for a density device in an orifice plate metering system is
downstream from the orifice plate. This installation is commonly referred to as the
pressure recovery method. The pressure recovery method allows an optimal gas flow rate,
and provides easy access for checking filters and verifying the meter calibration.
Tip
Use 6-mm (1/4-in) instrument tubing for the gas input pipework. Use 12-mm (1/2-in) insertion
tubing for the gas return pipework.
Planning
Installation Manual 7