Oil and Lubricants. For  Gas Compressors 

Shell Gas Compressor Oil S3 PY
Special Application Ethylene Gas Compressor Oil
Shell Gas Compressor Oil S3 PY lubricants are synthetic blends designed for total loss
lubrication of the cylinders of reciprocating hypercompressors in the manufacture of low
density polyethylene (LDPE), including LDPE used in special applications such as food,
pharmaceuticals and cable insulation, and ethylene vinyl acetate (EVA). Low feed rates and
high quality components help ensure minimal impact on production quality of the finished
polymers.

Applications
• Extreme high pressure hypercompressors
Shell Gas Compressor Oils S3 PY lubricants have
been in widespread use in hypercompressor
applications for over 10 years.
The ISO 220 viscosity grade provides low feed rates
for lower oil content in the end-polymer but requires
the use of elevated temperature line heating.
The ISO 150 grade allows the use of cylinder feed
systems with standard trace heating. 

Product

Shell Gas Compressor Oil S3 PY 220