Shell Refrigeration Oil S2 FR-A 68

Standards & approvals

• DIN 51503 KAA

  Refrigeration compressor oil KAA — DIN 51503

  Class KAA of DIN 51503: a mineral oil for ammonia refrigeration compressors, not miscible with the refrigerant.

Specifications

Brand

Shell

Range

Shell Refrigeration Oil

Category

Compressor oils

Viscosity

ISO VG 68

Manufacturer code

001D8392

Availability

On request

Typical characteristics

Manufacturer's description

Low-miscibility refrigeration compressor oil for systems using ammonia (R717) as the refrigerant. The ISO VG 68 grade has a kinematic viscosity of 68 mm²/s at 40 °C and 9 mm²/s at 100 °C, a pour point of -39 °C and a flash point of 232 °C. It is formulated from specially refined paraffinic base oils with selected additives that keep system deposits low and give a long service life. It can also be used in systems with hydrocarbons such as propane (R290); it is not recommended for CFC, HCFC or HFC refrigerants (R12, R22, R134a).

Applications

• Refrigeration compressorsShell Refrigeration S2 FR-A is an oil recommended for use in open, semi-open and hermetic compressors in domestic, commercial and industrial refrigeration systems. It can be used in both rotary and reciprocating compressor types.
• Refrigerant compatibilityShell Refrigeration S2 FR-A is recommended for lubricating refrigeration compressors using ammonia (R717) as the refrigerant, as well as in refrigeration systems where it delivers excellent performance, even at high compressor discharge temperatures or at evaporation temperatures of -30 0 C. It may also be used in systems using hydrocarbons, such as propane (R290). Shell Refrigeration S2 FR-A is not recommended for use with CFC, HCFC or HFC refrigerants such as R12, R22 or R134a.

Performance & benefits

• System efficiencyShell Refrigeration S2 FR-A has been specially optimised for use where oil separation systems are required. It has been designed to reduce final oil carry-over; this reduces oil thickening in the compressor and reduces the oil film on the internal surfaces of the evaporator, thereby maintaining overall system efficiency.
• Extended maintenance intervalsShell Refrigeration S2 FR-A has excellent oxidation and high-temperature stability, ensuring a long service life even where high discharge temperatures occur in the compressor. In addition, it is formulated to provide excellent control of deposit and sludge formation, resulting in extended oil drain intervals compared with conventional mineral oil based refrigeration oils.
• Shell Refrigeration S2 FR-A meets the requirements of the DIN 51503 KAA and KE specification
• Lubricant compatibility: Shell Refrigeration S2 FR-A is fully miscible with mineral oils, alkylated benzene and PAO-based lubricants

Fits

• Compressors & pumps