Shell Corena S4 R 68

Shell Corena S4 R 68 Applications

• Rotary sliding vane and screw air compressors
  Shell Corena S4 R 68 is suitable for oil-flooded/oil injected, single or two-stage compressors, operating at pressures of in excess of 25 bar and with air discharge temperatures of over 100C (including intermittent operation under these conditions).
• Severe service conditions
  May also be used where exceptionally high ambient temperatures are found, when the oil temperature cannot be reduced to normal levels.
• ABB Turbochargers
  The product is recommended for use in ABB turbochargers fitted to low and medium speed diesel engines used in marine and power generation applications.
• Bearing & Circulating Oil
  Perfectly suitable to cover applications where a synthetic bearing & circulating oil or R&O oil (ISO VG 32-68) is required and will provide benefits due to increased resistance to deposit formation, improved low temperature fluidity, and lowering equipment operating temperatures. When a higher viscosity grade synthetic oil is required we recommend to use Shell Morlina S4 B grades for such applications.

Specifications, Approvals & Recommendations

Shell Corena S4 R ISO 68 is approved by ABB for use in VTR turbochargers, with a maximum oil change interval of 5000 hours (HZTL 90617, list 3a).
ISO 6743-3A-DAJ.

Compatibility & Miscibility

Miscibility

Shell Corena S4 R ISO VG 68 oils are fully miscible with mineral oils, although dilution with mineral lubricants will markedly reduce its performance. Care must be taken to avoid mixing Shell Corena S4 R with certain other types of synthetic fluids. Contact your Shell representative for further information.

Seal Compatibility

Shell Corena S4 R 68 oils are compatible with seal materials specified for use with mineral oils.