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PAG-based lubricants are polar (water-soluble PAG > water-insoluble PAG > oil-soluble PAG), where PAO-based lubricants are essentially non-polar. This difference in polarity impacts many lubricant properties including elastomer compatibility, paint solvency, deposit control, and lubrication. To improve seal compatibility of PAO-based lubricants, an ester is added to the formulation to add some polarity. The more similar in polarity the lubricants are, the more similar they will behave in the properties mentioned. Table 7. PAG- and PAO-based lubricant differences. Source: Shell Similarities Between PAG- and PAO-Based Lubricants Unlike pag oil, poe oil is hydrophobic, meaning it does not absorb moisture, making it less susceptible to degradation due to water. When removing the service tubes from the vehicle, do not point the connections toward your body. Refrigerant residues may leak.
Water-insoluble (oil-soluble) polyglycols are likely to become more common and are used as heat transfer fluids, high-temperature bearing oils and in screw-type refrigeration compressors. Proper maintenance and compatibility considerations are key to ensuring optimal system performance and efficiency. Pag Vs Poe Oil: Performance ComparisonOn the other hand, poe oil excels in its moisture resistance and ability to reduce varnish formation. Therefore, the choice between pag oil and poe oil ultimately depends on the specific requirements of the air conditioning system and the refrigerant being used.
Therefore, the air conditioning compressor uses different types of oil to lubricate enough the A/C hoses, “O” ring seals, and joints to retain some flexibility. Reduced maintenance: The use of pag oil can contribute to reduced maintenance requirements, as it helps minimize wear and tear on components. This can result in cost savings and increased equipment uptime. Potential for contamination: If pag oil is not properly handled or stored, it can become contaminated with moisture, dirt, or other contaminants. Contaminated oil can negatively impact system performance and efficiency. Its low viscosity allows for smooth circulation throughout the system, reducing energy consumption.If something goes wrong with this process, however… It’s always better to practice first fixing any leaks before adding more fluids into what was already leaking because letting them out could cause damage FJC 2484 PAG Oil – 8 fl. oz. What is PAG oil? Improved system efficiency: The properties of poe oil, such as its excellent heat transfer and lubrication capabilities, contribute to enhanced system efficiency. When used properly, it can help reduce energy consumption, leading to improved overall performance. Proper oil selection: It is important to select the right type and viscosity of pag oil for specific applications. Incorrect oil selection can lead to poor lubrication, reduced efficiency, and potential damage to the system. Much is made of the potential benefit of synthetics for energy conserving purposes. Hopefully, this data provides insight into when and why we would rightfully expect to see reductions in frictional conditions leading to improved reliability and energy savings as a consequence of changing to a synthetic-based lubricant. Mineral oil was the de facto oil used up until the early 1990s thanks to its ability to mix with the R-12 refrigerant, but when R-12 was shelved due to its ozone-depleting properties, mineral oil had to be scrapped as well because of its inability to mix with the more environmentally sound R-134a.
Pag oil, or polyalkylene glycol oil, is a synthetic lubricant that has gained popularity in recent years. It boasts exceptional lubricating properties that help reduce friction and wear within the hvac system. Here are the key points to consider about pag oil’s lubrication properties: To determine the appropriate oil for your HVAC system, refer to the manufacturer’s specifications or consult with a qualified HVAC technician. They can identify the compatible oil based on the refrigerant used and the system requirements. Can I use synthetic Pag or Poe oil in my system? Compatibility: Pag oil is compatible with a wide range of materials such as metals, plastics, and elastomers. This makes it suitable for use in various systems and components. While R-134a has dominated the U.S. market for the past two decades, it too is beginning to be replaced by a new refrigerant. Although R-134a does not deplete the ozone layer, it has been shown to have a high global warming potential (GWP). For this reason, R-1234yf was developed and began to be phased into US vehicles in 2015. However, just as the discontinuation of R-12 necessitated the use of newer oils, the introduction of R-1234yf has also brought about the need for new specific R-1234yf A/C compressor oils.
Normalized EHL Film Thickness
Evaporator, condenser, and accumulator all need about 1 ounce of oil per component to work efficiently; hoses also contain small amounts so be sure not to let your usage go over this amount, or else you may have leaking problems! The recommended total maximum capacity is 5 fluid ounces – 4 if new parts are replacing old ones like a replaced fan motor (3). Always pay attention when adding fluids because too much will cause overheating which could lead directly into costly repairs down the line such as vandalism caused by collateral damage from firefighting efforts.” A/C compressor oil capacity
Pag oil exhibits remarkable heat resistance, allowing it to maintain its performance under high-temperature conditions.
PAG- and PAO-based lubricants rarely compete in industrial applications. The properties, advantages, and disadvantages reviewed provide some of the main reasons why. Each lubricant type will be the best choice for different sets of use parameters, including:
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