Air Compressor Lubricants

Product Description

The Mobil Rarus™ 800 Series is a line of supreme performance air compressor lubricants primarily intended for the lubrication of severe duty reciprocating air compressors but not recommended for air compressors used in breathing air applications. They are engineered to meet or exceed the stringent requirements of the major compressor manufacturers. They are formulated with design-specific synthetic base-oils ａnd a high technology additive system that assures exceptional equipment protection ａnd reliability for compressors operating under conditions where mineral-oil based products are not meeting expectations. Mobil Rarus 800 Series provides excellent wear protection ａnd outstanding resistance to oxidation ａnd thermal degradation, greatly superior to mineral oils. Their unique formulation provides the ability to help reduce maintenance costs through minimising equipment problems ａnd downstream deposits ａnd carryover.

Mobil Rarus 800 Series lubricants significantly reduce the potential for fires ａnd explosions, compared to mineral oil-based products. They exhibit a virtual absence of deposit formation ａnd higher autogenous ignition temperatures improving both performance ａnd safety. Their exceptional water separating characteristics reduce problems with emulsion formation ａnd carryover into downstream piping ａnd equipment. They are recommended or approved by many of the leading compressor manufacturers.

Features ａnd Benefits

The use of the Mobil Rarus 800 Series oils can result in cleaner compressors ａnd lower deposits compared to conventional mineral oils, resulting in longer running periods between maintenance intervals. Their excellent oxidation ａnd thermal stability safely allow extended life capability while controlling sludge ａnd deposit formation. They possess outstanding anti-wear ａnd corrosion protection, which enhances equipment life ａnd performance.

Applications

The Mobil Rarus 800 Series oils are recommended for single ａnd multistage air compressors, but are not recommended for air compressors used in breathing air applications. They are particularly effective for continuous high temperature operation with discharge temperatures up to 200ºC. They are suitable for reciprocating ａnd rotary type machines with the lower viscosity grades mainly used in rotary compressors. Rarus 800 Series oils are recommended for units with a history of excess oil degradation, poor valve performance or deposit formation. They are compatible with all metals used in compressor construction ａnd with mineral oil-based lubricants but admixture will detract from their performance capabilities. Mobil Rarus 800 Series oils are compatible with seals made from fluorinated hydrocarbon, silicone, fluorosilicone, polysulfide, Viton, Teflon, ａnd high nitrile Buna N NBR (above 36% acrylonitrile) materials. Materials not recommended include low nitrile Bune N NBR (below 30% acrylonitrile), natural ａnd butyl rubbers, Neoprene, polyacrylate, styrene/butadiene ａnd chlorosulfonated polyethylene.

Oil resistant paints are not affected by Mobil Rarus 800 Series, but lacquer, varnish, pvc ａnd acrylic paints are not recommended.

The following types of compressor applications have shown excellent performance with the Mobil Rarus 800 Series oils:

• All types of air compressors but specifically recommended for reciprocating air compressor
• Units operating under severe conditions
• Multistage units with a history of excessive oil degradation from mineral oil-based products
• They can be used for cylinder ａnd crankcase lubrication
• Compressor systems with critical gears ａnd bearings
• Compressors used in stationary ａnd mobile applications

Typical Properties