Chevron Capella P 68 provides effective wear protection for reciprocating, vane, and screw compressors in ammonia refrigeration systems, and systems using refrigerant R-22 and R-502.
- Capella P 68 delivers value through: Minimum oil carryover — Low volatility and good ammonia immiscibility which helps prevent oil reaching the evaporator, promoting refrigeration efficiency and minimizing maintenance. The low pour point and high viscosity index ensures that oil which does reach the evaporator will drain more rapidly than a naphthenic oil.
- Minimal make-up oil required — Minimal makeup oil is required because this product resists “carryover” to the refrigeration system’s low temperature side.
- Minimum sludging and formation of harmful deposits in the high temperature environment of the compressor which promotes long equipment and lubricant life while minimizing maintenance.
Capella P 68, formulated with Group II – base stocks, is designed to specifically address the requirements of ammonia refrigeration systems. Capella P 68 provides advantages over naphthenic refrigeration oils in the critical performance areas of lubrication, thermal stability, and reduction of oil carryove
Although designed for use in ammonia refrigeration systems, Capella P 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.