Compressed Air Preparation; Operation With Unlubricated Compressed Air - Festo VTSA-44-MP Series Manual

3. Installation
3.1

Compressed air preparation

3.1.1 Operation with unlubricated compressed air

3-4
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 oil methylester) the residual oil content
must not exceed 0.1 mg/m
– If mineral oils are used (e.g. HLP oils as per DIN 51524
parts 1 to 3) or corresponding oils on a polyalphaolefine
basis (PAO), the residual oil content must not exceed
3
5 mg/m (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.
3
(see ISO 8573-1 class 2).
Festo P.BE-VTSA-44-EN en 1101f