# Klüber Summit PS 400

### Klüber Summit PS 400 Is a semi-synthetic air compressor oil for oil change intervals up to 5,000 operating hours.

– Low maintenance and operating costs due to oil change intervals up to 5,000 operating hours in oil-injected screw-type compressors
– Easier compressor oil changeover due to neutral behaviour of oils towards seals
– Good soil dissolving capacity, clean oil circuit due to the ester content in the oil, reduction of cleaning costs
– Low formation of oxidation residues in the oil circuit, reduced operating costs due to extended oil filter and separator life

#### Description

Klüber Summit PS oils are air compressor oils based on hydrogenated mineral oil, synthetic ester oil and additives.

Klüber Summit PS oils are miscible with mineral oils and synthetic hydrocarbons, but not with oils based on polyglycol.

#### Application

Klüber Summit PS oils have been especially designed for the lubrication of screw-type and reciprocating piston compressors. They are used for oil change intervals up to 5,000 operating hours in oil-injected screw-type compressors.

Klüber Summit PS oils can be used for compressors that were previously run with conventional mineral oils. These oils are
neutral towards most elastomer seals used in air compressors, therefore leakage is not to be expected.

Klüber Summit PS oils are used for compressors which do not achieve the desired maintenance intervals when using mineral
oils and where the use of fully synthetic oils would be uneconomical due to ingress of contamination or a low number of operating hours per year.

Klüber Summit PS 100 can also be used for the lubrication of turbocompressors, whereas Klüber Summit PS 300 and 400 have been especially developed for reciprocating piston compressors.

Klüber Summit PS oils offer good oxidation stability due to the synthetic base oil content, thus minimising oxidation residues in the compressors and extending oil change intervals and the service life of oil filters and separators. Special inhibitors contained in the oil keep the inside of compressors clean and ensure a high efficiency.

#### Application notes

When selecting the oil viscosity for air compressors please observe the manufacturers’ instructions.
When switching a used compressor to Klüber Summit PS oils, drain the old oil from the whole circuit while still warm. We also recommend changing all oil filters and separators. Then refill the compressor with Klüber Summit PS oil.
When switching from mineral oil to a Klüber Summit PS oil please consider that the compressor may contain oxidation
residues in the form of blackened or contaminated oil. As such residues can affect the service life of the fresh Klüber Summit PS oil, the compressor should be cleaned using the Klüber Summit Varnasolv conditioner.

For further information, please consult the Klüber Summit Varnasolv product information leaflet or contact Klüber Lubrication.
After switching to a Klüber Summit PS oil we recommend determining the oil change interval through an oil analysis or the Klüber Summit TAN Kit.

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