Application specifications for 46# refrigeration oil
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This post was last edited by sunjl1981 on 2013-1-6 at 20:31. Our company uses chlorine liquefaction screw compressors; the refrigerant is R22, and we employ refrigeration oil of type 46. During operation, it is necessary to regularly test the quality of this oil. I’m sorry, but I’m not aware of the specific aspects to monitor regarding the oil quality or the acceptable range for its parameters. If anyone knows these details, please let me know. Thank you! hcbbs !! .
1. **Standard GB/T 16630-1996. 2. In China, engine oils are classified into five grades based on their dynamic viscosity at 40°C: 15, 22, 32, 46, and 68.** 3. Grade 1 refrigeration oil, model 46: **Specifications include: color not exceeding level 1.5; dynamic viscosity at 40°C ranging from 41.4 to 50.6 mm2/s; flash point (open cup) not less than 160°C; pour point not greater than -30°C; flocculation point not greater than -35°C, and so on. Standard download address on the site: http://bbs.hcbbs.com/viewthread.php?tid=369114&extra=page%3D1&frombbs=1
In addition to the indicators mentioned on the 2nd floor, simply observing with the naked eye whether the oil inside the sight glass is cloudy is also the simplest way to make a judgment!
Thank you to both of you for your help. I would like to ask one more thing: are there any specified limits for the water content and impurities in refrigerant oil? Thank you!
1. The water content is likely below 20PPM. 2. I’m not sure about the impurities, but the condition of the oil filter element should also indicate the quality of the oil; however, that can only be determined after it has been used. Generally, it’s the fuel consumption that is analyzed; high-quality fuel has not been analyzed
What is the freezing point of 46# refrigerant oil?