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What is the difference between R404a and R507 refrigerant?

DATE:2023-08-30
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What is the difference between R404a and R507 refrigerant?
1, R507 and R404a can replace R502 environmental protection refrigerant, but R507 can usually reach a lower temperature than R404a, suitable for low and medium temperature new commercial refrigeration equipment (supermarket freezer, cold storage, display cabinet, transportation), ice making equipment, transportation refrigeration equipment, Marine refrigeration equipment or renewal equipment. Suitable for all environments in which the R502 operates normally.
2, R404a and R507 pressure temperature gauge data show that the pressure between the two is almost the same, if you usually pay attention to the system accessories, you will find that the thermal expansion valve on the mark is shared by R404a and R507.
3, R404A is a non-azeotropic mixture, liquid charging is used when filling, and R507 is an azeotropic mixture. The presence of R134a in R404a increases the mass transfer resistance and reduces the thermal coefficient of the transmission chamber, while the heat transfer coefficient of R507 is higher than that of R404a.
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