Shell Refrigeration Oil S4 FR-V 32 is an advanced synthetic alkylated benzene-based lubricant designed for a wide range of refrigeration compressors using most refrigerants except HFCs.
High-performance synthetic lubricant for diverse refrigeration systems
Alkylated benzene formulation for high solvency and system cleanliness
Compatible with a wide range of refrigerants including R717 (ammonia), R744 (CO₂), R12, R22, and R290
Excellent high-temperature stability and oxidation resistance
Long oil drain intervals due to superior deposit and sludge control
Fully miscible with mineral oils and PAO-based lubricants
Can be used as a flushing fluid in turbine oil circuits
Suitable for open, semi-hermetic, and hermetic compressors
Formerly known as Shell Clavus Oil AB
Global Product Code: 001D8398
Shell Refrigeration Oil S4 FR-V 32 is a synthetic refrigeration compressor lubricant based on alkylated benzene technology. It is designed to meet the lubrication demands of compressors using most common refrigerants—excluding HFCs—and is effective across commercial, domestic, and industrial systems. This product was formerly known as Shell Clavus Oil AB.
| Property | Typical Value | Method |
|---|---|---|
| ISO Viscosity Grade | 32 | ISO 3448 |
| Refrigerator Oil Group | KAA, KC | DIN 51503 |
| Kinematic Viscosity @ 40 °C | 29 mm²/s | ISO 3104 |
| Kinematic Viscosity @ 100 °C | 4.1 mm²/s | ISO 3104 |
| Density @ 15 °C | 870 kg/m³ | ISO 12185 |
| Flash Point (COC) | 180 °C | ASTM D92 |
| Pour Point | -45 °C | ASTM D97 |
| Neutralisation Number (TAN) | 0.04 mg KOH/g | ASTM D664 |
| Floc Point with R12/R22/R290 | -50 °C | DIN 51351 |
| Refrigerant Stability @ 250 °C (R12/R22/R290) | 96 °C | DIN 51393 |
| Miscibility | Miscible across full refrigeration temperature range | — |