Nu-Calgon 4319-24 Refrigeration Oil | PVE-FVC68D (1 Quarter) Description: PVE or polyvinylether lubricants are finding increased application and use by compressor and equipment manufacturers. Features: PVE-FVC68D: ISO68 PVE lubricants are compatible with all HFC refrigerants PVE lubricants exhibit excellent performance characteristics in air conditioning and refrigeration applications Polyvinylether lubricants are particularly well suited for use with HFC refrigerants such as R-134a, R-404, R-407C, and R-410A Solubility and miscibility characteristics PVE lubricant provides for increased stability and lubrication PVE lubricants do not hydrolyze in the presence of moisture, a very important feature in HVAC/R applications Compatible with other refrigeration oils and process fluids PVE lubricants also exhibit compatibility and performance with frequently used anti-wear additives