Introduction:
Motorol Refrin S grades of Refrigeration Compressor Oils use totally synthetic polyolester base stocks. These oils are primarily blended for use in refrigeration and air-conditioning systems with environmentally friendly (HFC) refrigerants.
Refrin S 100, Refrin S 68
Applications:
Use Motorol Refrin S grades in open, semi-open, and hermetic compressors for domestic, commercial, and industrial refrigeration and air-conditioning systems with hydrofluorocarbon (HFC) refrigerants—ozone-friendly options like R-134A, R404A, R407A, R507, R23, and others. They are suitable for both rotary and reciprocating compressor types.
Advantages:
Excellent lubricity.
Good oxidation and chemical stability.
Miscible in alternative refrigerants like R-134a and other chlorine free HFC refrigerants at low temperatures
Excellent low temperature fluidity
Very high thermal and hydrolytic stability.
Typical Specifications:
- Characteristics S 32 S 46 S 68 S 100 S 220
- Appearance, Visual Clear, bright and free from sediments and other impurities
- Color, Max 0.5 0.5 0.5 0.5 0.5
- Density @ 15 °C (g/ml) 0.985 0.954 0.954 0.955 1.02
- Flash Point (°C), Min 250 250 254 260 265
- Pour Point (°C), Max (-)54 (-)50 (-)48 (-)27 (-)27
- Viscosity at 40°C (cSt) 28-35 41-51 61-75 95 -105 230
- Viscosity at 100°C (cSt) 5.7 7.25 9.1 11.2 23
- Viscosity Index 127 119 109 94 124
- Acid Number (mg KOH/g) 0.02 0.02 0.02 0.05 0.05
- Water Content (mg/kg) <50 <50 <50 <50 <100
