CPI 4600 is a series of polyalphaolefin (PAO) compressor lubricants for Industrial Refrigeration and Speciality Gas applications. It is available in various viscosity grades; CPI 4600-32, CPI 4600-46, CPI 4600-68, CPI 4600-100, and CPI 4600-150.

The CPI 4600 Series is manufactured using polyalphaolefin (PAO) synthetic base fluids which give excellent low-temperature, wax-free properties. They have superior thermal and oxidative stability, which enables them to operate over a wider temperature range than standard mineral products. These low-volatility compressor oils are fully miscible with hydrocarbon gases and are also compatible with mineral-based lubricants too.

Applications of the CPI 4600 Series

CPI 4600 Series lubricants can be used in propylene and ammonia refrigeration applications including liquid ring vacuum pumps, oil-flooded rotary screw compressors and any other application that requires a thermally resistant lubricant. They have a low pour point which prevents these lubricants from congealing in refrigeration lines and a high film strength helps to provide lubricity, even when they are diluted with the refrigerant in use.

These high performance lubricants can also be used in speciality gas applications for flooded rotary screw and reciprocating compressors. The are suitable for both process and reactive gas applications and can be used as a sealing fluid for rotary mechanical shaft seals of chemical processing pumps. The CPI 4600 Series offer increased efficiency and a reduced cost of operation due to their excellent lubricity properties and also help to increase service life and reduce maintenance down time with fewer top-offs required.