PAG 46, 100, 150 Compressor Oil
Hydrofluorocarbon (HFC) refrigerants are commonly used worldwide and generally considered more environmentally acceptable to CFC’s, which demonstrate ozone depletion potential (ODP). Poor compatibility is observed between HFC’s and mineral oil based lubricant systems and as a result the use of synthetic lubricants is well established. Almost all new mobile air conditioning systems are filled with R-134a and lubricated with polyalkylene glycol (PAG) lubricants. Synthetic polyalkylene glycol lubricants demonstrate excellent lubricating qualities and good solubility with refrigerant HFC R-134a.
TecLub’s PAG grades are fully formulated ISO grade polyalkylene glycol lubricants designed specifically for application with R-134a in mobile air-conditioning systems. TecLub’s PAG grades are designed for application in air-conditioning systems where the compressor requires a lubricant with viscosity 46, 100 or 150 cSt @ 40˚C. TecLub’s synthetic PAG lubricants are uniquely formulated to provide unsurpassed lubricity, wear protection, and proper miscibility with ozone-friendly refrigerants, as well as R-12 in the case of retrofits.
- Good solubility in HFC R-134a and alternative HFC’s.
- Superior lubricating qualities compared to alternative synthetic technologies and mineral oils. Improved wear protection will result in improved system efficiency, lower maintenance costs and reduced downtime.
- Exceptional Viscosity Index (VI) - the high VI of TecLub’s PAG grades enhances compressor life by ensuring efficient running at temperature extremes. The high VI may also allow the user to select a lower viscosity fluid than typically used, with associated power usage savings.
- Good high temperature stability, resulting in reduced downtime and lower maintenance costs.
- Low TAN, low pour points and high flash points make TecLub PAG grades ideal lubricants for automotive air-conditioning systems.
- Formulated expertise - the TecLub PAG grades contain efficient additive technology to protect the compressor from any problems related to corrosion of white or yellow metals, to minimise the effects of wear and extreme pressure conditions and to ensure long fluid life.
|Performance Attribute||Test method||ISO46||ISO100||ISO150|
|Viscosity @ 40ºC (cSt)||ASTM D445||42||101.2||150|
|Viscosity @ 100ºC (cSt)||ASTM D445||8.3||18.1||25.8|
|Viscosity Index||ASTM D2270||178||198||208|
|Density (gcm‾1)||ASTM D1298||0.983||0.993||0.996|
|Flash Point (ºC)||ASTM D92||242||246||252|
|Pour Point (ºC)||ASTM D97||-50||-46||-43|
|Water Content (wt% max)||ASTM E284||0.03||0.03||0.03|
|TAN (mgKOHg‾1)||ASTM D974||0.10||0.10||0.10|
(The typical values presented here should not be considered to constitute a specification).
TecLub’s PAG grades are suitable for applications where older vehicles using the R-12 / mineral oil combination are being retrofitted from CFC R-12 to HFC R-134a. TecLub’s PAG grades demonstrate excellent solubility with R-12, are stable in the presence of residual levels of R-12 and are also miscible and stable with residual levels of mineral oil.
Polyalkylene glycols are hygroscopic relative to other synthetic lubricants and mineral oils. Excessive water absorption of a polyalkylene glycol may be prevented by minimising the product’s exposure to air. Handling of small volumes requires simply ensuring that the container is closed when not in use and that time spent transferring product to the compressor system is minimised. Unopened containers are to be stored clean, dry and at normal temperatures.