In recent years, the HFC-227ea Heptafluoropropane market has been chaotic. The most disgusting one is that unscrupulous merchants sell inferior refrigerants to users. This has caused a large number of inferior refrigerants to flood the market, causing consumers and market order. Serious harm. Some businesses clearly stated that genuine refrigerants are difficult to compete with inferior refrigerants due to high cost pressures. The use of low-quality refrigerant will not only affect the performance and stability of the system, but also cause damage to the system components and compressors. Next, the coldest bacteria will sort out how to identify the authenticity of refrigerants.

It is recommended to use the following methods to identify whether it is a low-quality refrigerant:

Whether to purchase refrigerants produced by regular manufacturers through formal channels, such as refrigerants whose prices are significantly lower than market prices, should arouse a high degree of vigilance.

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% (the purity of high-quality refrigerant is greater than 99.8%), and the acidity (in HCL) should be less than 0.0001.

If you do not meet the requirements of China Fumigant Manufacturers refrigerant testing, it is recommended to perform a simple inspection before using the refrigerant. The simple inspection method can be:

1. 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 that the refrigerant is of poor quality and is not recommended;

2. Connect the pressure gauge to test the pressure of the refrigerant bottle. Compare the temperature and pressure characteristics table of the refrigerant to check whether the pressure in the bottle is within the normal range. If the pressure is obviously abnormal, it is not recommended. And when the refrigerant is halfway used, the pressure in the bottle can be tested again.

For a single-component refrigerant such as R22, the two measured bottle pressure values ​​should be very close. However, for inferior refrigerants, there are usually multiple components mixed. After the refrigerant in the bottle is used, the bottle pressure will usually be higher due to the change in the composition ratio. If you encounter this kind of phenomenon, it is recommended to stop the refrigerant immediately and discharge the refrigerant that has been charged into the system to avoid polluting the system.