Detecting method for authenticity of refrigerant

Inferior refrigerants will affect the performance and stability of the system, and more severely will cause damage to the system components and compressors. The following methods can be used to distinguish whether it is a low-quality refrigerant:

1. Connect to a pressure gauge test, if the measured pressure value is lower than the corresponding saturation pressure at the ambient temperature If the value is more than 2kg/f, it can be judged that this refrigerant is unqualified, and it is strictly prohibited to use it! For example: the ambient temperature is 20 degrees, the measured pressure value is 7.1kg/f, which is far lower than the saturation pressure value of 13.5kg/f that the refrigerant at this temperature should reach, then the refrigerant can be judged to be unqualified.

2. Foam detection method, the foam detection method is effective for refrigerants containing corrosive gases such as methyl chloride, and the degree of corrosion of the foam is related to the content of methyl chloride , The higher the content, the more obvious the effect, the lower the content, the less obvious the effect.

3. Turn the refrigerant tank upside down and release a small amount of refrigerant onto a piece of white paper. If there are obvious impurities or liquid water on the white paper, it means the refrigerant It is of poor quality and is not recommended. In addition, refrigerants that can be purchased through regular channels, such as refrigerants whose prices are significantly lower than the market prices, should arouse a high degree of vigilance.

4. If you have the test conditions, it is recommended to check the purity and acidity of the refrigerant before using it. It is not recommended to use the refrigerant whose test results are significantly lower than the industry standard . Note: The purity of qualified R22 refrigerant should be greater than 99% (a good refrigerant has a purity greater than 99.8%), and the acidity should be less than 0.0001.

5. During the system debugging and operation stage, no other abnormalities were found after inspection, and the refrigeration capacity was insufficient; the dryer or expansion valve was blocked, and the blockage was yellow-brown wax It is recommended to extract the refrigerant from the system for purity testing to troubleshoot the risk of inferior refrigerant.

This is the end of the above-mentioned method for detecting the authenticity of refrigerants. I hope to bring you some help. If you have a demand for refrigerants, please contact us for consultation and negotiation , We serve you wholeheartedly!

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