What is the difference between R404a and R507 refrigerant

1。 Refrigerant R404A is by R125 / R143a/everything by 44% / 52% / 4% mixed together, refrigerant R507 by R125 / R143a by 50% / 50% mixed together, look from the composition of mixed composition of R404A three ingredients already contains two R507 ingredients. Both kinds of refrigerant ODP is zero, does not damage the ozone layer.

2。 R404A and R507 pressure, temperature, pressure on the table data indicate that the pressure is almost the same between them, the system does not constitute any impact, if we pay attention to the use of system components, especially the expansion valve on the mark that is Shared by R404A and R507. 3. Azeotrope R404A right and wrong, it necessary to choose liquid filling, filling and R507 is azeotrope. 4. Everything to be increased by mass transfer resistance in R404A reduced the heat transfer coefficient is a message, and the heat transfer coefficient of R507 above R404A. 5. From the point of now from the manufacturer's use function, R507 role than R404A cooling speed is faster. 6. From the price comparison, R507 is 30 - higher than R404A - 40%. 7. Each function of R404A and R507A index close to, the compressor power consumption is higher than R507A R404A 2. 86%; Low-pressure compressor exhaust temperature is higher than R507A 0. 58%, high pressure compressor exhaust temperature is higher than R507A 2. 65%; The COP is higher than R507A 0. 01; The center temperature is lower than R507A 6. 14%.

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