SUNISO® 4SA

Suniso® 4SA is a highly refined naphthenic refrigeration lubricant designed to lubricate refrigeration compressors using ammonia (R-717) refrigerant. Suniso 4SA offers low wax content and a low pour point delivering excellent low temperature performance with no wax deposits to plug the system.

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  • Low Wax Content & Low Pour Point: Excellent low-temperature performance with no wax deposits to plug the system.
  • Excellent Chemical Stability: Does not react with ammonia refrigerant or metal components in the system, extending machine service life and reducing maintenance costs.
  • High Thermal Stability: Cleaner operation of the compressor with minimal deposits and failures due to valve sticking.
  • Seal Compatibility: Suniso 4SA is based on naphthenic base oils which provide mild seal swell.

Suniso 4SA is designed for use in commercial and industrial refrigeration systems charged with ammonia (R-717) refrigerant. Suniso 4SA is ideally suited for low temperature systems where evaporator temperatures are as low as -36°C / -33°F. Suniso 4SA is based on naphthenic base oils which provide mild seal swell.

SUNISO PRODUCT BROCHURE

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Property ASTM Method Suniso 4SA
Density at 15°C, kg/L D4052 0.91
Viscosity at 40°C, cSt D445 56
Viscosity at 100°C, cSt D445 6.4
Flash Point, °C / °F D92 180 / 356
Pour Point, °C / °F D5950 -39 / -38
Minimum Evaporator Temperature °C / °F -36 / -33

The values quoted above are typical of normal production. They do not constitute a specification.

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