Mobil Zerice S 68

Mobil Zerice S Oils are premium quality synthetic refrigeration compressor lubricants based on alkyl benzenes, which due to their nature, have superior miscibility with hydrochlorofluorocarbon (R22). This allows them to be used in very low temperature applications, down to -60°C. In certain circumstances, they can also be used in compressors where ammonia acts as the refrigerating fluid.

Features

Miscibility with halocarbon refrigerants

Increased system efficiency

Low pour and floc points

Avoids wax precipitation and increased system efficiency

Chemical Stability

Long oil service life

Application

Mobil Zerice S 68 lubricants are recommended for all refrigeration compressor types: reciprocating or rotary screw.They are well suited for use with hydrochlorofluorocarbon refrigerants, and may also be suited for use with ammonia in certain equipment builders' compressors. They should not be used with sulfur dioxide or R134A refrigerants. The specific viscosity grade should be selected in accordance with the compressor manufacturer's recommendations.

Specification

Grade                                                ISO 68

Flash Point, Cleveland Open Cup, C(F), ASTM D92   174

Kinematic Viscosity @ 40 C, mm2/s, ASTM D445       68

Pour Point, °C, ASTM D97               -27

Acid Number, mgKOH/g, ASTM D974        0.05

Water, ppm, ASTM D1533      <50