Description:

Shell Corena AP is an advanced reciprocating air compressor lubricant and is based on specially selected synthetic ester fluids. It incorporates the latest additive technology to provide the highest possible performance. 

Performance, Features & Advantages:

• Outstanding performance in all operating conditions.

Developed specifically for heavy duty reciprocating air compressors. This includes reciprocating air compressors subjected to overloading, intermittent
or continuous operation. Corena AP is designed to provide safe, reliable and effective lubrication for extended service periods where mineral compressor lubricants are unsatisfactory. 

• Extended service intervals 

The extreme low tendency for deposit build-up ensures continued high compressor performance over long periods. It enables the normal valve maitnenance period, typically between 250 and 1000 hours of operation using conventional mineral oils, to be extended to 2000, or even 4000 hours. 

• Maximum safety for air lines. 

The absence of deposit formation has a very important safety-related benefit. In discharge airlines, the combination of rust particles, dispersed in carbonaceous deposits, coupled with heat from
recently compressed air, can cause an exothermic reaction leading to the possibility of fires and explosion. Corena AP helps to minimise the likelihood of this danger arising. 

• Excellent rusting and wear protection. 

Effectively protects all metal surfaces from corrosion. Protects all sensitive machinery parts, e.g. gears, screws, bearings, from wear and prolongs the service intervals. 

• Excellent oxidation resistance

Resistant to the formation of carbon deposits and lacquer on valves and piston crowns, caused by the by-products of corrosion such as ferric oxides and hydroxides, at high working temperatures and pressures. Such deposits can cause serious damage, lower compressor efficiency and increase maintenance costs. 

• Excellent water separation properties 

Separates readily from water preventing accelerated corrosion and facilitating separation from condensate. 

Applications:

• Reciprocating air compressors 

All industrial reciprocating air compressors,in particular up to and above air discharge temperatures of 220°C with continuous high delivery pressures. 

•Breathing air compressors 

Corena AP may be used in breathing air compressors, provided subsidiary clean-up apparatus is used to ensure that the air produced is fit for breathing.
Advice on applications not covered in this leaflet may be obtained from your Shell representative.