Installation; Compressed Air Preparation; Operation With Unlubricated Compressed Air; Operation With Lubricated Compressed Air - Festo MPA-L Series Description

3. Installation

3.1

Compressed air preparation

3.1.1 Operation with unlubricated compressed air

3.1.2 Operation with lubricated compressed air

Festo P.BE−MPAL−EN en 1008NH
Caution
Unfiltered or incorrectly lubricated compressed air will
reduce the service life of the valve terminal.
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 0.1 mg/m
When using mineral oils (e.g. HLP oils to DIN 51524,
parts 1 to 3) or similar oils based on poly−alpha−
olefins (PAO), the maximum residual oil content of
3
5 mg/m must not be exceeded (see ISO 8573−1 Class 4).
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.
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.
3
(see ISO 8573−1 class 2).
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