Servo Friz NH 68 oil is a mineral lubricant of high quality. It is formulated for the lubrication of reciprocating and rotary refrigeration compressors and specially designed for Ice Plants and the Cold Storage Refrigeration
Compressor using Ammonia as Refrigerant. It is also known to be suitable for use in well designed and maintained refrigeration systems where evaporator temperatures achieved via ammonia are found to be lower than the pour point of the oil. This oil possesses inherent resistance to oxidation and deposit formation; high fluidity at very low temperatures. It also acts as a resistant to deposit formation which helps it to keep compressor parts clean. It reduces compressor valve maintenance due to fewer deposits and also ensures excellent efficiency of the condenser. Due to high oxidation and thermal stability, this oil automatically gives a long service life with a reduced tendency to foam. Servo Friz NH 68 provides a good metal and ammonia refrigerant compatibility.
Meets requirements of:
- Ammonia refrigeration compressor being used in Ice Plants & Cold Storage refrigeration systems.
| ISO VG | NH 68 |
|---|---|
| Kinematic Viscosity cSt @ 40°C | 64-72 |
| Flash point (COC), °C Min. | 170 |
| Pour Point, °C Max. | (-)24 |
| TAN, mg, KOH/gm, Max | 0.05 |
