Shell Refrigeration Oil S2 FR-A 68

Application:

Shell Refrigeration Oil S2 FR-A 68 is a paraffinic mineral-based compressor lubricant developed for use in ammonia (R717) and hydrocarbon-based refrigeration systems. Formulated to reduce oil carryover and deposits, it helps maintain optimal system efficiency. This product was previously known as Shell Clavus Oil S.

Performance Features & Benefits:

• System Efficiency: Low miscibility with ammonia helps minimize oil thickening and evaporator fouling, preserving heat transfer and overall system performance.
• Extended Maintenance: High resistance to oxidation and thermal degradation supports longer service intervals even in high-temperature compressors.
• Deposit Control: Effectively controls sludge and varnish formation for cleaner system operation and increased reliability.

Main Application Areas:

• Open, semi-open, and hermetic refrigeration compressors
• Commercial and industrial cooling systems using ammonia (R717) or hydrocarbons such as propane (R290)
• Suitable for rotary and reciprocating compressors
• Note: Not recommended for use with CFC, HCFC, or HFC refrigerants (e.g. R12, R22, R134a)

Specifications & Approvals:

• DIN 51503 KAA, KE

Environmental & Safety Information:

• Use impervious gloves and avoid prolonged skin contact with used oil.
• After skin contact, wash immediately with soap and water.
• Do not discharge into drains or the environment; dispose of used oil at authorized collection points.
• Safety Data Sheet (SDS) available via inquiry

Technical Specifications: