3 Mounting and installation
58 Festo – P.BE-MPA-EN – 1309f – English
3.4 Compressed air preparation
Note
Unfiltered or incorrectly lubricated compressed air will reduce the service life of the
valve terminal.
3.4.1 Operation with unlubricated compressed air
Note
Too much residual oil content in the compresse d air will reduce the service life of the
valve terminal.
• When using bio-oils (oils that are based on synthetic ester or native ester, e.g. rape-
seed oil methyl ester), the maximum residual oil content of 0.1 mg/m
3
must not be
exceeded ( ISO 8573-1 class 2).
• When using mineral oils (e.g. HLP oils to DIN 51524 Part 1 to 3) or corresponding
oils based on polyalphaolef in (PAO), the maximum residual oil content of 5 mg/m
3
must not be exceeded ( ISO 8573-1 class 4).
This avoids operative malfunctions of the valves.
Excessive residual oil content is not permissible, independent of the compressor o il, as otherwise the
basic lubrication will be washed out with time.
3.4.2 Operation with lubricated compressed air
Operate system equipment with unlubricat ed compressed air, if possible. In this way, you
protect the environment. Festo pneumatic valves and actuators have been designed so
that, if used as intended, they will not require additional lubrication and will still ac hieve a
long service life.
Note
Operation with lubricated compressed air will cause the life-time lubrication, which is
necessary for unlubricated operation, to be “wa shed out”.
If the system was c ommissioned with lubricated compressed air, a changeover to provi-
sioning with unlubricate d compressed air is not possible.
Observe the subsequent informatio n if the use of lubricated compressed air is essential:
The c ompressed air produced after the compressor must correspo nd to the quality of
unlubricated compressed air. If possible, do not operate the total system with lubricated
compressed air. If po ssible, always install the lubricators directly upstream of the con-
suming a ctuators.
To Next Page
Loading...
