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11.8. Coal filter cartridge :
Coal filter cartridge removes water condensation and oil by a chemical
system not mechanical. Activated carbon and molecular sieve absorb
water and oil purifing breathing air according to DIN EN12021.
Filter has two safety systems. The first one has a hole closed when the
cartridge has put inside. It is not possibile to refill cylinders without
cartridge. The second one is designed to prevent pressurizing in the
absence of the filter cartridge. A bore provided in the filter bottom is
sealed air-tight only if the cartridge is in place. Without cartridge the
venting bore is not sealed, the air escapes into the atmosphere and
no pressure can be built up.
The filter system is subject to dynamic load. It is designed for a certain
number of load cycles, which originate from an abrupt pressure loss at
condensate drain.After 500 operating hours an inspections have to be
arranged by the operator. After reaching the max. number of load
cycles: 8000 cycles at 300Bar or 21000cycles at 225Bar the filter as-
sembly must be replaced. Approximately, with 4cycles per hour at 300
bar filter must be changed after 2000 operating hours instead at 225 Bar after 5000 operating hours..
11.9. Filter maintenance :
The cartridge in the picture removes water and oil.
Please follow the procedure as below:
•
Depressurize system before starting any maintenance work.
•
Dry inside of filter housing with a clean cloth before installing new cartridge and check for corrosion. Chan-
ge if necessary.
•
Check the O-ring and change it if damaged.
•
Change cartridge before reactiving a compressor unit.
The number of operating hours or the amount of possibile bottle fillings per filter cartridge can be determinated
taking into consideration the ambient temperature and the cartridge used.
To avoid any ranger to your health or damage to your unit, change used up cartridges in good time.Never fill used
up cartridges yourself. The filter material was chosen specifically by Nardi compressori for each kind of application. Never remove replace-
ment cartridge from packaging prior to actual use otherwise highly sensitive molecular sieve will absorb water vapour from surrounding air
and cartridge saturated.
INSTRUCTION MANUAL PACIFIC 210
