Filter Maintenance; Condensate Drainage; Filter Cartridges; Filter Service Lifetime - Bauer Junior II-B-F01 Instruction Manual

Venting bore
No cartridge
Fig. 30 Safety bore
LIFETIME
The filter system is subject to dy­
WARNING
namic load. It is designed for a cer­
tain number of load cycles, which
originate from an abrupt pressure loss at condensate
drain (1 load cycle i.e. condensate drain = 1 depressu­
rization, 1 pressurization). The filter housing has to be
inspected internally by an expert after having reached
1/4 of the determined number of load cycles. The in­
spections have to be arranged by the operator. After
reaching the max. number of load cycles the filter as­
sembly must be replaced, otherwise the housing may
burst due to material fatigue.
The max. number of load cycles for the P21 Central Filter As­
sembly is 4,000 if operated at the max. allowable pressure
difference range of 330 bar (4,700 psi). For a pressure differ­
ence of 225 bar (3,200 psi) the max. no. of load cycles is
35,000.
To avoid exceeding the max. number of load cycles the oper­
ating hours should be recorded in the service manual. On
condition that a max. number of four cycles per hour is not
exceeded (condensate is drained every 15 minutes) the max.
number of operating hours is 1,000 for 330 bar units, and
8,750 for 225 bar units.
GENERAL INSTRUCTIONS FOR FILTER MAINTENANCE
- Depressurize system before starting any maintenance
work.
- Dry inside of filter housing with a clean cloth before in­
stalling new cartridge and check for corrosion. Change if
necessary.
- Lubricate threads and O-rings as well as threaded part of
cartridge with white petrolatum DAB 9 order no. N19091
or WEICON WP 300 white order no. N19752.
- Record number of pressure bottles and/or operating
hours to ensure exact attention to maintenance intervals.
- Change cartridge before reactivating a compressor unit
after out-of-service periods of more than 3 months.
- Leave cartridge in the filter as long as unit is out of ser­
vice.
- Keep all condensate drain valves and taps closed. Keep
a minimum pressure of approx. 50 to 80 bar (700 to 1,100
psi) within the system to prevent moisture entering the
compressor piping and filter system.
20
Cartridge installed
Instruction Manual w Junior II
- The nozzle type separator of the TRIPLEX filter system is
maintenance-free besides the regular condensate drain­
age.

CONDENSATE DRAINAGE

Drain condensate from separator and cartridge chamber reg­
ularly by slowly opening drain taps (2 and 3, Fig. 28)
- before changing cartridge
- before each filling procedure
- during filling procedure every 15 minutes.
Slowly open left tap first, then right tap approx. 1/3 turn to
the left, until condensate is completely drained. The taps
close by spring pressure, if necessary tighten by hand to
make sure they are completely air-tight.

FILTER CARTRIDGES

New filter cartridges are vacuum-packed and can be stored
for two years (refer to date on the cartridge). A defective vac­
uum package cannot protect the cartridge appropriately
against environmental influences during storage. Should the
package be damaged, do not use the cartridge.
To avoid any danger 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 BAUER-KOMPRESSOREN for each kind
of application.
Pay attention to cleanliness an hygiene when changing the
filter.

FILTER SERVICE LIFETIME

The average weight (without package) of a new cartridge
and the increase in weight can be checked with appropriate
weighing scales. Due to inevitable production tolerances,
there may be small differences compared to the given data.
The number of operating hours or the amount of possible
bottle fillings per filter cartridge can be determined by the
tables on page 22 and 23 taking into consideration the ambi­
ent temperature and the cartridge used.
These tables contain calculated cartridge lifetime data, that
refer to defined and constant operating conditions. Toler­
ances at bottle fillings and different operating temperatures
can lead to considerable divergences compared to data
given, which therefore can only serve as reference values for
the user.
Cartridge 057679 is the normal TRIPLEX-cartridge for elec­
tric units.
Filling weight: 191 g; Saturation weight 205 g.
Example: at an ambient temperature of 20°C, 36 to 45
10-ltr-bottles can be filled with a TRIPLEX-cartridge, which is
equivalent to 12 to 15 compressor operating hours at a filling
pressure of 200 bar.
On compressor units with petrol engines only use cartridge,
part no. 059183 to dry, de-oil and remove CO.
Filling weight: 217 g; Saturation weight 229 g.
Example: at an ambient temperature of 20°C, 31 to 38
10-ltr-bottles can be filled with this cartridge, which is equiv­