9.6.2 Checking the load cycles
The separators and filters are dynamically loaded and need to be checked and, if
necessary, replaced at set intervals and number of load cycles.
The load cycles of the filter depend on the operating conditions and will need to be
determined individually.
For further information see the accompanying operating instructions for pressure
equipment.
The responsibility for monitoring the load cycles of all pressure vessels is with the
operator.
The determination of the load cycles depends on the unit configuration. Determine
the load cycles as follows, depending on the equipment level:
•
Units with electrical control system: the load cycles are counted by the cycle
counter in the switchgear box of the compressor control system and can be
read off there at any time.
•
Units without electrical control system: the operating hours should be written
down. With the proviso that a number of load cycles of 4 cycles per hour is
maintained, i.e. the condensate drain takes place every 15 minutes, the serv-
ice life of the container in operating hours is a quarter of the max. number of
load cycles. Example: At a max. number of load cycles of 4000 load cycles and
4 cycles per hour, the service life of the container is 1000 hours.
•
Units with B-TIMER: read off the operating hours on the display of the B-TIMER
and derive the load cycles as described above.
1.
Determine the already carried out load cycles. See note above.
2.
Determine the max. permissible number of load cycles of the container with
the aid of operating instructions provided for pressure vessels.
3.
Compare the determined or read-off load cycles with the max. permissible
number of load cycles of the relevant container. If necessary, test the contain-
er or have it replaced.
9 | Maintenance OPERATING MANUAL
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A_002_en
28.08.2019
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