Sage-Tips

Is PVE oil hygroscopic?

Polyvinyl Ether (PVE) – a synthetic oil that is being used as an alternative to POE oil. It is more hygroscopic than POE oil but less than PAG oil. Like PAG oil, PVE oil does not undergo hydrolysis in the presence of water.

Can you mix PVE and POE oil?

PVE is completely miscible on the low side of the system. This helps oil return to the compressor and also limits coating of the evaporator surfaces since the oil remains mixed in and not separate from the refrigerant. PVE also has a smaller immiscible region at higher operating pressures when compared with POE oil.

Is Poe oil hygroscopic?

HFC refrigerants and POE oils have a polar molecular structure, which attracts the polar water molecule. POEs are also hygroscopic and can pick up more moisture from their surroundings and hold it much tighter than the previously used mineral oils.

Is Poe oil compatible with PAG oil?

PAG oil and POE oil do not mix properly. A high percentage of POE will reduce lubrication performance.

Is PAG oil hygroscopic?

PAG oils are by nature hygroscopic. That means they quickly absorb moisture. Specifications for R 1234yf A/C service units say that A/C compressor oils may only be injected into vehicle air conditioning systems from refillable and moisture-free containers.

Can I use R-22 with POE oil?

The refrigerant R-22 is compatible with POE oils.

What is PAG oil made of?

PAG is actually an acronym for Polyalkylene Glycol, and it is a synthetic oil used in A/C systems to lubricate the compressor. Most all newer model cars use PAG as the lubricant in the A/C system. When people refer to PAG oil they typically refer to it in the following terms: PAG 46, PAG 100, or PAG 150.

What is Poe oil used for?

POE oil is a synthetic oil that is used to lubricate compressors utilized in direct expansion (DX) systems utilizing refrigerants such as R410A. POE oil is added into the R410 refrigerant charge, and it circulates with the refrigerant.

What is POE compressor oil?

Polyolester oil (POE oil) is a type of synthetic oil used in refrigeration compressors that is compatible with the refrigerants R-134a, R-410A and R-12. HFC-134a with POE oil as the lubricant is a replacement for CFC-12 with mineral oil as the lubricant.

Can I use Poe instead of PAG?

PAO Oil for refrigerant R134a, to some extent for refrigerant R1234yf and other refrigerants Can be used as an alternative to the various PAG oils that are offered for R134a (has the advantage of not being hygroscopic, i.e. unlike other oils, it does not absorb moisture from the ambient air).

Can I use R22 with POE oil?

What is hygroscopic oil?

Oils by nature are hygroscopic, which means they absorb moisture from the air. The tendency of an oil to undergo this process is known as hygroscopicity. Ester-type fluids, especially polyol and phosphate esters, readily pull moisture from the environment.

What is the difference between POE oil and PvE oil?

It is also suitable for systems using CFC or HCFC refrigerants. Polyvinyl Ether (PVE) – a synthetic oil used as an alternative to POE oil; it is very common in ductless and VRF systems. It is more hygroscopic than POE oil, but PVE oil does not undergo hydrolysis in the presence of water.

Why do we use PvE oil in air conditioners?

Because of the increased reactivity of HFOs with oil, this is especially true for systems with these refrigerants. Compressors for factory-made air conditioners and chillers are also increasingly being charged with poly-vinyl ether (PVE) oils.

What kind of oil do you use in a Pag air conditioner?

PAG Oil. PAG oil, or Polyalkylene Glycol, is a fully synthetic hygroscopic oil specifically designed for automotive air conditioner compressors. It is used in R-134a air conditioning systems to lubricate the compressor. When looking at PAG oil you will notice various numbers such as PAG46 or PAG100.

What is the difference between POE oil and PAG oil?

Lastly, just like POE oils PAG oils are hygroscopic and can absorb moisture at a much faster rate than mineral oil. Because of this the time allowed for the compressor to be exposed to the atmosphere has to be short. Best practice is to ensure everything is set and ready before pulling the plugs on the compressor.