10
4.7
Evaluation
Performance of the Parker Balston Nitrogen Generator is highly dependent on the temperature
of the inlet air. The data on the flow rate presented in this bulletin is based on an inlet air
temperature of 68°F (20°C). If the temperature of the inlet air at the point of use for this system
varies from 68°F (20°C) by more than 5°F (3°C), the factory must be consulted for flow and
purity information.
The performance and operating conditions of the Parker Balston Nitrogen Generator should be
monitored on a routine basis, as dictated by the application. This routine system check should
include correcting any changes in the flow meter reading, confirming operating and outlet
pressure gage reading stability, checking the downstream flow meter (if applicable) to ensure
flows are consistent with the rated capacity of the generator. If these readings have changed
significantly from their original settings, adjustments must be made as described in the
Adjustment Procedure section of this bulletin.
4.8
Poor System Performance
Poor system performance relative to pressure or flow rate (e.g., compressor malfunctions or
plumbing leaks) will result in variations in the purity of the outlet gas. Poor system performance
relative to temperature, dewpoint, or hydrocarbon content of the inlet compressed air may also
result in variations of the system performance. These types of performance issues should be
eliminated from the compressed air delivery system to assure consistent performance of the
Parker Balston Nitrogen Generator.
4.9
Shutting Down
Proper shutdown of the Parker Balston Nitrogen Generator can be accomplished by simply
closing the (customer supplied) inlet air gate valve (see figures 4 or 5). If this valve is left open,
the system will continue to consume compressed air. Closing the outlet flow control valve will
not prevent air consumption because the membrane module permeate port is open to
atmosphere.
5.0
Maintenance
To avoid system damage and/or personal harm, isolate the Parker Balston Nitrogen from
the compressed air supply and fully depressurize prior to performing Generator any
maintenance activities. All maintenance activities for the N2-200 Nitrogen Generator
should be performed by suitable personnel using reasonable care. The service personnel
will verify the safe state of the generator after the maintenance or repair is completed.
Safety risks that may affect the service personnel are identified with the necessary
protective measures when applicable.
The primary maintenance tasks required by the Parker Balston Nitrogen Generator are:
changing the pre-filter cartridges (6 months), changing the final membrane filter (6 months), and
replacing the activated carbon filter (6 months). See figure 6 for the locations of the various
maintenance items. A summary of the replacement part numbers and recommended service
frequency is shown at the end of this Maintenance section in table 6.
Replacement pre-filter cartridges, final membrane filter cartridges, and activated carbon filters,
may be ordered through your local representative. Parker also offers a convenient Filtration
Maintenance Kit (P/N MKN2-200) which contains one grade DX coalescing filter, one grade BX
coalescing filter, one Carbon Tower, and one GS grade membrane filter conveniently
packaged into one kit.
