Festo Smart cubic CPV-SC Series, Manual

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3. Installation
3-3
Festo P.BE-CPVSC-EN en 0112NH
3.1 Preparing the compressed air
Caution
Dirty or incorrectly lubricated compressed air will reduce
the service life of the valve terminal.
3.1.1 Operation with non-lubricated compressed air
Caution
Excessive residual oil in the compressed air will reduce the
service life of the valve terminal.
– If bio oil is used (oils based on synthetic ester or true
ester, e.g. rape oil methyl ester), the residual oil content
must not exceed 0.1 mg/m² (see ISO 8573-1 class 2).
– If mineral oils are used (e.g. HLP oils as per DIN 51524
parts 1 to 3) or corresponding oils on the basis of poly-
alphaolefin (PAO), the residual oil content must not ex-
ceed 5 mg/m² (see ISO 8573-1 class 4).
In this way you will avoid functional damage to the valves.
A higher amount of residual oil cannot be permitted irrespec-
tive of the compressor oil, as otherwise the basic lubricating
oil will be washed out in the course of time.