Polyether Lubricant (Zerol PE-X HP)
Polyether Type Synthetic Lubricant – Stationary HVACR Lubricants for HFO Applications
Shrieve’s ZEROL® PE-X HP range are a unique range of polyether synthetic lubricants, designed and developed specifically for use in the next generation of stationary HVACR systems utilising HFOs and other environmentally friendly refrigerants.
Lubricant chemistries used today with HFC refrigerants such as R134a can have deficiencies when used with next generation HFO and HFO blended refrigerants. This can lead to multiple lubricants needed to be used for different refrigerants. Shrieve has developed alternate lubricant chemistry Zerol PE-X HP that allows for one lubricant option to be used over a range of refrigerants.
Heat Pumps using HFO as a refrigerant require a robust lubricant, this is due to the harsh operating environment of the refrigerant. Acids and fluorides are typical characteristics of HFO refrigerant breakdown. Therefore Zerol PE-X HP is the lubricant of choice for these types of systems.
WHAT NEXT GENERATION HVACR SYSTEMS CAN THIS LUBRICANT BE USED WITH?
Zerol® PE-X HP can be typically used with HFO refrigerants and blends such as R1234yf, R1234ze(E), R452A, R449A, R32 and R450A. Some of these refrigerants are used in low to medium temperature refrigeration applications as retrofits, which means it is replacing banned or High Ozone Depleting refrigerants such as R22.
A SINGLE ALTERNATE LUBRICANT THAT CAN BE USED ACROSS A RANGE OF REFRIGERANTS
A compressor OEM may have a variety of compressor platforms for use with a variety of HFO refrigerants, the compressor build is often the same. For example a scroll compressor may be designed for use with multiple HFO refrigerants e.g. R1234ze(E), R32 etc. If the specific grade(s) is approved for use with one HFO refrigerant it is possible that the same working characteristics will give similar performance in another HFO refrigerant type. Therefore this makes the lubricant more singular in choice across a wider refrigerant platform.
WHAT ARE THE MAIN DIFFERENCES BETWEEN RFL-EP HP AND THE PE-X HP?
The main differences between Zerol® PE-X HP and Zerol® RFL-EP HP lubricant ranges are the chemistry type – the lubricant base fluid is designed specifically according to the operational conditions required, and one is a Double End Capped PAG and the other is a novel Polyether. A further primary factor which differentiates the two lubricants for their specific refrigerant applications is the additive pack technology. Both have uniquely designed additive packages to enable optimum use and performance with both refrigerants.