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REFCOM MRL Rvn no : 1

Compressor lubricant for CFC refrigeration systems

Description

REFCOM MRL is formulated for use in refrigeration systems that use chlorinated fluorocarbon refrigerants. It is a highly refined naphthenic oil with excellent low temperature properties and a very low wax content in order to avoid flocculation problems in service.

Application

Recommended for general purpose lubrication of refrigerator compressors working with CFC (chlorinated fluoro-carbon) refrigerants such as R11 and R12. It may

also be used for HCFC (hydro chlorinated fluorocarbon) refrigerants such as R22,R123, R-124, R-141b, R142b, R-502 and

Methyl Chloride, Carbon Dioxide (R-744) and Ammonia (R-717) at moderate temperatures. Coolmax CFC is not suitable for use with HFC refrigerants such as R134a or R23.

Benefits

  • Greater chemical resistance against reactions with the refrigerant
  • Better fluidity at lower temperatures which warrant a better efficiency and avoids blockage of pipes and coolers
  • Good dispersibility for optimal heat transfer and oil return

Gas type suitability

REFCOM MRL is suitable for processing the following gases:

R11 R12 R502 R22 R123
R414b R142b R124 R401a R409a
R290 R600/600a R502 R717 R744

Typical performance data

  Test method MRL 32 MRL 46 MRL 55 MRL 68
Appearance - Bright and clear
Colour ASTM D1500 1
Specific gravity @ 15 °C - 0.910 0.914 0.915 0.916
Viscosity @ 40 °C, cSt - 30 43 55 68
Viscosity @ 100 °C, cSt - 4.4 5.3 5.5 5.9
Pour point, °C ASTM D97 -40 -37 -37 -36
Flash point COC, °C ASTM D92 168 175 176 179
Copper corrosion, 24 hrs / 150 °C ASTM D130 1b 1b 1b 1b
Dielectric strength, kV IEC 156 45 45 45 45
Dissipation factor @ 25 °C 2 mm IEC 0.01 0.01 0.01 0.01
Water content, ppm max. ASTM D1533 50 50 50 50
Freon 12 insoluble, wt. % max. DIN 51590 0.05 0.05 0.05 0.05

 

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