- Refrigeration compressors
ISO VG 68
Synthetic polyol ester oil for HFC refrigerants
ViscosityISO VG
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Refrigeration compressor oil KD — DIN 51503
Class KD of DIN 51503: a synthetic refrigeration compressor oil.
| Property | Typical value | Method |
|---|---|---|
| ISO viscosity grade | 68 | ISO 3448 |
| Refrigerator Oil Group | KD | DIN 51503 |
| Kinematic viscosity @40°Cmm2/s | 66 | ISO 3104 |
| Kinematic viscosity @100°Cmm2/s | 8.8 | ISO 3104 |
| Density @15°Ckg/m3 | 991 | ISO 12185 |
| Flash point (COC)°C minimum | 230 | ISO 2592 |
| Pour point°C | -42 | ISO 3016 |
| Neutralisation numbermg KOH/g | (TAN) 0.06 | ASTM D664 maximum |
| Characteristics when used with R134a - Floc- point°C maximum | -30 | DIN 51351 |
| Characteristics when used with R134a - Refrigerant Stability @250°Cminimum | 96 | DIN 51393 |

Advanced Synthetic Refrigerator Compressor Lubricant. Shell Refrigeration Oil S4 FR-F is a synthetic refrigeration lubricant with a polyol ester base fluid. It has been developed for use with R134a and other HFC refrigerants.
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