WARNING
Instruction Manual
Junior II
20
Fig. 30
Safety bore
Venting bore
No cartridge
Cartridge installed
LIFETIME
The filter system is subject to dy
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.
-
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
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