Frigol TZ-28
General features
FRIGOL Refrigeration Compressor Oils are obtained by refining oil fractions extracted through straight-run distillation of paraffin-free petroleum.
Application
They are intended for use in ammonia refrigeration compressors with evaporator temperatures of up to -30oC, e.g. uniflow compressors with oil recirculation systems, however, only when oil can be diluted with a coolant, e.g. methyl chloride.
Standards, approvals, specifications
PN-74/C-96072
Physical and chemical properties
| Parameters | Unit | Typical values |
| Kinematic viscosity at 200C | mm2/s | - |
| Kinematic viscosity at 400C | mm2/s | - |
| Kinematic viscosity at 500C | mm2/s | 30,4 |
| Kinematic viscosity at -300C | mm2/s | - |
| Kinematic viscosity at -200C | mm2/s | 5130 |
| Flash point | 0C | 230 |
| Freezing point | 0C | -35 |
| Acid number | mg KOH/g | 0,0015 |
| Ash content | % | 0,003 |
| NOTE: The above values of physical and chemical properties are typical values. Actual values are specified in quality certificates enclosed with each product lot. |