Description:

Shell Refrigeration Oil S4 FR-F is a synthetic refrigeration lubricant with a polyol ester base fluid. It has been developed for use with R134a and other HFC refrigerants. 

Performance Benefits:

• Extended maintenance intervals

Shell Refrigeration Oil S4 FR-F has excellent high temperature and oxidation stability providing long service life even where high compressor discharge temperatures are found.

• Wear protection

Shell Refrigeration Oil S4 FR-F has been designed to minimise the wear in bearings and pistons – the most critical parts of a reciprocating compressor. 

Applications:

• Refrigerator compressors

Shell Refrigeration Oil S4 FR-F is recommended for use in open-, semi-open and hermetic compressors in domestic, commercial and industrial refrigeration systems. It can be used in both rotary and reciprocating compressor types

• Refrigerant compatibility

Shell Refrigeration Oil S4 FR-F is recommended for use with R 134a and other types of HFC refrigerant. .

• Seal compatibility

Shell Refrigeration Oil S4 FR-F is compatible with all sealing materials commonly used with HFC refrigerant systems.