Description
🔬 Emkarate® RL 22H Technical Data (Typical Values)
Emkarate RL 22H is an ISO VG 22 grade lubricant. The following are typical property values based on standard ASTM testing methods:
| Analysis | Method | Typical Value | Unit |
| Viscosity @ 40°C | ASTM D445 | 19.37 (or 19.3) | cSt (mm²/s) |
| Viscosity @ 100°C | ASTM D445 | 4.23 (or 4.2) | cSt (mm²/s) |
| Viscosity Index | ASTM D2270 | 125 (or 124) | |
| Density @ 20°C | ASTM D4052 / D1298 | 0.9927 (or 0.994) | g/ml |
| Flash Point (COC) | ASTM D92 | 261 (or 260) | °C |
| Pour Point | ASTM D5950 / D97 | -54 (or -57, -52) | °C |
| Total Acid Number (TAN) | ASTM D974 | 0.03 (or 0.02) | mgKOH/g |
| Color (Hazen) | ISO 2211 | 46 (or 60) | Hazen Units |
| Water Content | ASTM D6304 | <50 (or 30) | ppm |
| Miscibility (Low) | In House (10% Lube in R134a) | -43 | °C |
Note: Typical values may vary slightly depending on the specific batch and testing facility (as seen in different data sheets).
Key Performance & Chemical Features
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Synthetic POE Base: It is a fully synthetic Polyol Ester (POE) lubricant, wax-free, which is essential for compatibility with HFC refrigerants.
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HFC Refrigerant Compatibility: Specifically formulated for use with HFC refrigerants (Hydrofluorocarbons), such as R-134a. It is also suitable for use with newer HFO (Hydrofluoroolefins) and Hydrocarbon (HC) refrigerants.
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Outstanding Miscibility: Designed for enhanced miscibility (the ability to mix) with HFC refrigerants across a wide temperature range. This is crucial for good oil return to the compressor, preventing oil starvation, evaporator fouling, and a loss of heat transfer efficiency.
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Superior Stability: Exhibits excellent chemical and thermal stability in the presence of HFC refrigerants, which contributes to increased system and lubricant life.
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Wide Operating Range: The combination of stability and a very low pour point (as low as $-57^\circ\text{C}$) enables its effective use across a broad range of operating temperatures, especially in low-temperature applications.
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Effective Wear Protection: Provides effective wear protection for moving metal parts (steel and aluminum surfaces) inside the compressor, leading to improved efficiency and extended system life.
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High Viscosity Index (VI): The high VI (around 125) indicates that the oil’s effective viscosity changes less drastically with temperature swings compared to conventional mineral oils.
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