Purification Systems
Page 19
3rd Edition, Rev 0 Chg 6
3.3.3
Maintenance
3.3.3.1
Replacing the Cartridge
1. Depressurize system before starting any maintenance, by opening the condensate drain valve.
2. Unscrew plug (3) on top of the filter.
3. Extract old cartridge. (6)
4. Dry inside of the housing (5) with a clean cloth. Check for corrosion. Replace if necessary.
5. Lubricate threads, O-rings and threaded portion of replacement cartridge with petrolatum.
6. Insert new cartridge and secure in place with plug (3).
3.3.3.1.1
Chamber Replacement Interval
The maximum number of load cycles for the P31 filter assembly is 6,500 if operated at 5,000 psi (300
bar) or 20,000 if operated at 3,200 psi (225 bar).
If the number of load cycles of four per hour (i.e. the condensate is drained every fifteen minutes) is not
exceeded then the maximum number of operating hours before the filter must be replaced is 11,625 hours
at 5,000 psi (300 bar). To avoid exceeding the maximum number of load cycles the operating hours
should always be recorded.
NOTICE
The used filter cartridge must be disposed of in accordance with local, State, and Federal regulations.
^
WARNING
The P31 Filter System is subject to dynamic loading. It is designed for a certain number of load cycles. A
load cycle equates to an abrupt pressure loss caused by draining the condensate.
The filter assembly must be replaced after reaching the maximum number of load cycles, otherwise the
housing may fail due to material fatigue.
