Shell Corena S4 R 68  Synthetic Rotary Compressor Oil 

Tikweld Welding Supplies and Services is the distributor and supplier of Shell Lubricants in Nigeria. Shell Corena S4 R 68 is primarily advanced synthetic air compressor oil incorporating a unique high performance additive system. Corena S4 R 68 has been designed to distribute the highest performance lubrication of rotary sliding vane and screw air compressors. It uses an advanced additive system to provide excellent protection and performance for compressors running at pressures over 25 bar and in excess of 100C discharge temperatures with oil protection intervals of up to 12,000 hours. Shell Corena S4 R ISO 68 is also perfectly suitable to cover applications where a synthetic bearing & circulating oil or R&O oil (ISO VG 32-68) is needed.

Shell Corena  S4 R 68 Main Application

• 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.

Shell Corena S4 R 68 Benefits

• Long oil life maintenance savings.

• Exceptional resistance to thermal and chemical break down.

• Resists formation of deposits.
• Outstanding wear protection.
• Maintaining system efficiency.
• Synthetic lubricating oil with advanced ashless anti-wear system.

Specification

ISO Viscosity Grade                    ISO 68

Viscosity Index                          135

Kinematic Viscosity cSt 40°C        68

Kinematic Viscosity cSt 100°C      10.2

Density @15C                               848

Pour Point, °C(°F)                         -48C

Flash Point                                     248C

Spec Air Release:                            4mins

Water Separability:                         10mins

• Approved by ABB for use in VTR turbocharges, with a maximum oil change interval of 5000 hours (HZTL 90617, list 3a)
• ISO 6743-3A-DAJ

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