Compressed Air Preparation; Operation With Unlubricated Compressed Air - Festo CDVI-DN Description

3. Installation
3.1

Compressed air preparation

3.1.1 Operation with unlubricated compressed air

3-4
Note
Unfiltered or incorrectly lubricated compressed air will
reduce the service life of the valve terminal.
Note
Too much residual oil content in the compressed air will
reduce the service life of the valve terminal.
– If bio oils are used (oils based on synthetic esters or nat-
ive esters, e.g. rapeseed oil methylic ester), the residual
oil content must not exceed max. 0.1 mg/m
8573-1 class 2).
– If mineral oils are used (e.g. HLP oils to DIN 51524 Part 1
to 3) or corresponding oils based on polyalphaolefin
(PAO), the residual oil content must not exceed 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
3
Festo P.BE-CDVI-EN en 1202e