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SUNISO Refrigeration Oil--GS Series

Por Qishanr Lubricants December 2nd, 2025 vistas 23

Application Scope

  • Applicable Equipment: Special refrigeration oil for refrigerators and air conditioners.

  • Compatible Compressor Types:

  • Reciprocating compressors

  • Rotary compressors
  • Scroll compressors
  • Screw compressors
  • Turbo compressors

  • Compatible Refrigerants:

  • HCFC refrigerants: R-22, R-502

  • Natural refrigerants: R-600a, R-717, R-290
  • CFC refrigerants: R-12

  • Application Scenarios:

  • Oil filling for new units during factory delivery

  • Oil replacement for units after maintenance
  • Selection Principle: Choose the corresponding viscosity grade of SUNISO GS lubricating oil in line with the technical specifications of the compressor manufacturer.

Core Technical Characteristics

  1. Chemical Stability

  • No chemical reactions with refrigerants and various materials in the system

  • Ensures material compatibility of the entire refrigeration system

  1. Thermal Stability

  • Effectively reduces deposit formation during compressor operation

  • Maintains long-term cleanliness of the system

  1. Low-Temperature Adaptability

  • Adopts low-wax component design

  • Maintains good fluidity under extremely low-temperature working conditions
  • Prevents system blockage caused by wax precipitation

  1. Electrical Insulation

  • Possesses high dielectric strength

  • Meets the electrical safety requirements of refrigeration equipment

Typical Performance Parameters (by Model)

Performance Item
Test Method
3GS
4GS
5GS
6GS
Kinematic Viscosity (40℃), cst
ASTM D445
29.6
54.83
98.47
145.5
Kinematic Viscosity (100℃), cst
ASTM D445
4.36
5.8
8.72
9.766
Density (15℃), g/cm³
ASTM D1298
0.9115
0.915
0.92
0.9265
Flash Point, ℃
ASTM D93
176
188
216
226
Pour Point, ℃
ASTM D97
-40
-35
-30
-23
Floc Point, ℃
SUN 1.58
-54
-48
-37
-35
Dielectric Strength, KV
JIS C2101
55
50
45
40
ASTM Color
D1500
L0.5
L1.0
L1.5
1.5
Total Acid Number, mgKOH/g
D974
0
0
0
0
Moisture, PPM
D1533
25
20
25
20
Copper Strip Corrosion (100℃), Grade
D130
1a
1a
1a
1a
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