Festo MPA-L Series, Description

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3. Installation
3−3
Festo P.BE−MPAL−EN en 1008NH
3.1 Compressed air preparation
Caution
Unfiltered or incorrectly lubricated compressed air will
reduce the service life of the valve terminal.
3.1.1 Operation with unlubricated compressed air
Caution
Too much residual oil content in the compressed air will
reduce the service life of the valve terminal.
If bio−oils are used (oils with synthetic ester or true ester
basis, e.g. rape or methylester), the residual oil content
must not exceed 0.1mg/m
3
(see ISO8573−1 class2).
When using mineral oils (e.g. HLP oils to DIN 5 1524,
parts1 to 3) or similar oils based on poly−alpha−
olefins (PAO), the maximum residual oil content of
5mg/m
3
must not be exceeded (see ISO8573−1 Class4).
This avoids operative malfunction of the valves.
Excessive residual oil is not permissible irrespective of the
compressor oil, as otherwise the basic lubrication will be
washed out with time.
3.1.2 Operation with lubricated compressed air
Operate system equipment with unlubricated compressed air,
if possible. This is better for the environment. Festo pneu
matic valves and actuators have been designed so that, if
used as intended, they will not require additional lubrication
and will still achieve a long service life.