KryonLube POE HVACR Lubricants

The KryonLube POE HVACR series lubricants represent a technologically advanced solution for the lubrication of refrigeration and air conditioning systems, especially in the presence of new-generation refrigerants (such as HFCs and HFOs). Designed and formulated in GeneralGas laboratories, these synthetic oils combine high performance, reliability, and compatibility with the latest HVACR compressor technologies.

Composition and Chemical-Physical Performance

KryonLube POE lubricants are synthetic oils based on polyol esters (POE), with selected additives that improve stability and protection. Polyol esters are recognized as the most suitable type of oil for use with HFC/HFO refrigerants, thanks to their excellent miscibility with the refrigerant and optimal solubility under the typical operating conditions of HVACR systems.

These formulations offer:

• High chemical and thermal stability, which maintains consistent lubricating characteristics even in the presence of high operating temperatures or prolonged stress.
• Low vapor pressure and low volatility, reducing lubricant loss through evaporation and ensuring more efficient and long-lasting compressor operation.
• Excellent anti-wear protection of the internal metal surfaces of the compressors, extending their reliability and useful life.
• Compatibility with materials and seals thanks to the selection of additives, a crucial element to avoid incompatibility and deterioration problems in the circuits.

Optimal miscibility with refrigerants is particularly important: it allows the oil to move and return correctly to the compressor through the refrigeration circuit together with the refrigerant itself, guaranteeing constant lubrication and reducing the formation of unwanted deposits in the pipes and exchangers.

Compatibility with Modern Refrigerants

Modern air conditioning and refrigeration systems no longer use old-generation HCFC fluids, but rather higher-performing refrigerants compatible with updated environmental regulations (such as R-410A, low-GWP HFO blends, etc.). These refrigerants specifically require POE oils because traditional mineral oils or other synthetic lubricants are not sufficiently soluble or stable under such operating conditions. In particular, the series is formulated to be highly soluble in HFC and HFO refrigerants, allowing for correct oil return to the compressor through the circulating refrigerant.

KryonLube POE lubricants cover a wide spectrum of kinematic viscosities to adapt to the different needs of compressors:

• Viscosity at 40 °C from 22 up to 220 cSt, with high viscosity indexes meaning viscosity stability over a wide thermal range.
• Very low pour points (down to -53 °C) allow for correct oil flow even at low operating temperatures.
• High flash points (>200 °C) ensure greater safety during high-temperature operations.

These properties guarantee that the oil maintains optimal lubricating performance both during cold starts and in long-term, high-temperature operating conditions, reducing wear and improving the overall efficiency of the system. The KryonLube POE line includes various viscosity grades to be preferred based on the type of system, refrigerant, and operating conditions.

The following table:

✓ POE 22, ✓ POE 32, ✓ POE 46, ✓ POE 55 ✓ POE 68, ✓ POE 100, ✓ POE 170, ✓ POE 220

Each grade of lubricant is offered in multiple formats to adapt to installation and maintenance needs:

• Metal cans: 1 liter, 5 liters, 20 liters.
• Multiple packs: Packs of 4 cans or 6 cans.
• Large formats: 200-liter metal drums and 1000-liter IBC tanks.

These formats allow for supplies both for professional use and field maintenance, as well as for the installation of large refrigeration and HVACR systems. Always check the specifications recommended by the compressor or system manufacturer before selecting the viscosity grade. Store the product in a dry and sealed place to avoid moisture absorption. Use lubricants compatible with the specific type of refrigerant used in the HVACR system.