ENGLISH
V4-007 J EN
Originalbetriebsanleitung
26
8.3
Lubricating oil specications for
VM / VML screw compressors
Additives and viscosity class are the dening factors in selecting types of lubricating
oil.
The following oils, which are of the correct viscosity and contain appropriate additives,
are to be used in accordance with the relevant operating conditions.
1. General requirements for lubricating oil properties
Kinematic viscosity at oil operating temperature : 10 - 13 cSt (mm
2
/s)
Kinematic viscosity at -10°C : ≤ 3500 cSt (mm
2
/s)
Minimum oil additive properties
EP wearing protection additives for use in roller bearing gearboxes•
Oxidation stability up to 110°C•
Foam suppressor•
Detergents for solution of deposits•
Neutrality compared with sealing materials made of uoro-propylene-methyl (Vi-•
ton).
Neutrality compared with single-component resin primers•
Adequate shear stability•
* Ambient temperature = Temperature in the immediate environment of the machine
all year round.
2. Single or double-shift operation / intermittent operation
Intake temperature : Up to 50°C
Final compression temperature : Up to 280°C
Ambient temperature* : No restriction
Lubricant to be used : Aerzener special rotary piston oil,
Order no.: 160 754 or 160 755
This lubricating oil is used for the initial lling for standard application conditions.
or
Intake temperature : Up to 50°C
Final compression temperature: Up to 280°C
Ambient temperature* : Above 0°C
Lubricant to be used : ISO VG 68
Fully synthetic (PAO) poly-alpha-olen,
gearbox or compressor oil
Example : MOBIL SHC 626
3. Continuous operation / 24 hours per day
Intake temperature : Up to 50°C
Final compression temperature : Up to 280°C
Lubricant to be used : ISO VG 68
Fully synthetic (PAO) poly-alpha-olen,
gearbox or compressor oil
Example : MOBIL SHC 626
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