Chevron Ammonia Refrigeration Oil ISO 68
Chevron Ammonia Refrigeration Oil delivers value through reduced oil carryover
Low volatility and greater ammonia immiscibility result in significantly less oil reaching the evaporator, increasing refrigeration efficiency and reducing maintenance. The low pour point and high viscosity index insures that any oil which does reach the evaporator will drain more rapidly than a naphthenic oil.
Reduced sludging and formation of harmful deposits in the high temperature environment of the compressor. As a result, equipment life and lubricant life can be extended while reducing maintenance.
Stable viscosity
Base stock properties allow the oil to maintain a stable viscosity, staying in grade longer than a naphthenic refrigeration oil.
Maximum protection for critical parts of the compressor provided by high viscosity index, low foaming tendency, and inherent antiwear properties. The oil maximizes equipment life and life to overhaul by providing superior lubrication to all moving parts.
Extended drain intervals
Resistance to thermal degradation allows customers to extend drain intervals.
Less make-up oil required
Significantly less make-up oil is required because this product resists "carryover" to the refrigeration system's low temperature side.
Features
Chevron Ammonia Refrigeration Oil provides superior wear protection for reciprocating, vane, and screw compressors. Chevron Ammonia Refrigeration Oil ISO 68, formulated with ISOSYNTM base stock, is designed to specifically address the requirements of ammonia refrigeration systems and provide better results than naphthenic refrigeration oils in these systems. Chevron Ammonia Refrigeration Oil provides advantages over naphthenic refrigeration oils in the critical performance areas of lubrication, thermal stability, and reduction of oil carryover.
Applications
Chevron Ammonia Refrigeration Oil ISO 68 is the lubricant of choice for rotary screw, reciprocating, or rotary vane compressors in ammonia refrigeration systems. The single ISO grade is consistent with the recommendation of equipment manufacturers.
Although designed for use in ammonia refrigeration systems, Chevron Ammonia Refrigeration Oil ISO 68 is also recommended for use in systems using refrigerant R-22 and R-502 provided the evaporator temperature is above -32°C (-25°F). It is not recommended for systems using refrigerant R-12 or R-134a.
Chevron Ammonia Refrigeration Oil ISO 68 is compatible with the seal elastomers commonly used in refrigeration compressors (e.g., Buna-N, chloroprene). Naphthenic refrigeration oils can compromise the integrity of certain seal elastomers. It is good maintenance practice to install new seal elastomers when replacing a naphthenic refrigeration oil. This is especially important when chloroprene (neoprene) seals are present.
Chevron Ammonia Refrigeration Oil meets manufacturer specifications
Frick No. 3 Oil
FES No. 1 Oil
It is authorized by U.S. Department of Agriculture (USDA)for use in federally inspected meat and poultry plants as an H2 lubricant with no food contact.
Approvals
Chevron Ammonia Refrigeration Oil is approved for use in Vilter and Sabroe refrigeration compressors.
Typical Test Data
| ISO Grade | |
| CPS Number | |
| MSDS Number | |
| API Gravity | |
| Viscosity, Kinematic cSt at 40°C cSt at 100°C | 64.6 8.5 |
| Viscosity, Saybolt SUS at 100°F SUS at 210°F | 335 54 |
| Viscosity Index | |
| Flash Point, °C(°F) | |
| Pour Point, °C(°F) | |
| Dielectric Strength, kV |
Typical test data are average values only. Minor variations which do not affect product performance are to be expected in normal manufacturing.
Chevron Corporation, 575 Market Street, San Francisco, CA 94105. Tel: 415-894-1873; Fax: 415-894-6017.