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They provide: - a basic equation for each refrigerant (only for R134a, R22, R123, R717, R14) - tables on: saturated states, superheated vapour, physical properties of the refrigerant - a diagram of the refrigerant. Viscosity¶ V. Geller. R404A is a HFC blend, used as a replacement for R502 and R22 in low and medium temperature refrigeration applications. Brady B-401 Plastic Safety Sign is a polystyrene sign panel, with protected graphics. 2000. R-404A has been approved by many refrigeration compressor and system manufacturers for use in new refrigeration equipment, such as … The table is sortable by each of the following refrigerant properties (scroll right or reduce magnification to view more properties): 2) Production of R12 or CFC-12 (Dichlorodifluoromethane) was halted by the clean air act on January 1, 1996. This study experimentally compares the high-GWP R404A with two low-GWP HFC/HFO blends, R454A (35% R32 + 65% R1234yf) and R454C (21.5% R32+ 78.5% R1234… 3. lower than R404A. Whether you’re restricting access to a particular area, alerting employees to potential hazards, or simply providing direction – Admittance Signs play an important communications role throughout your entire facility. Azeotropic mixtures have sharp boiling points instead of boiling over a range of temperatures, which is the case with most mixtures. Bp (at 1 atm) -46.5°C. There had to be a replacement for the Ozone damaging refrigerants of the past and the successor was the HFC R-404A that we all know of today. Physical properties of some common refrigerants: For full table with Freezing Points and Critical Points - rotate the screen! DuPont ™ SUVA ® 404A refrigerant Version 3.0 Revision Date 12.05.2011 Ref.130000000494 8/13 Skin irritation • 1,1,1-Trifluoroethane Not tested on animals Classification: Not classified as irritant Result: No skin irritation Not expected to cause skin irritation based on expert review of the properties … Refrigerant Gas R404A is a colorless odorless mixture of three hydrofluorocarbon compounds in near-azeotropic proportions. Refrigerant Properties Glide and heat exchanger performance R404A is a quasi-azeotrope refrigerant blend, which means it condenses and boils at nearly the same temperature for a given pressure (temperature glide lower than 0.5K). Viscosity of Mixed Refrigerants R404A, R407C, R410A, and R507A.In 2000 International Refrigeration Conferences at Purdue University. R-404A is a pseudo-azeotropic mixed refrigerant composed of the three ingredients R-125, R-134a, and R-143a, and was developed as a substitute refrigerant for R-502 and R-22, used in commercial refrigerator equipment for low and medium temperature ranges. Forane ® 404A (R-404A) is a non-ozone depleting, near azeotropic blend of HFC refrigerants R-125, R-143a, and R-134a, and is formulated to match the properties of R-502, making it useful for a variety of medium and low temperature refrigeration applications. 404A’s reign however was short lived. 3) R22 or HCFC-22 is a single component HCFC refrigerant with low ozone depletion potential. The R number of a chemical refrigerant is assigned systematically according to molecular structure. R-404A Pressure Chart. Although it is a popular refrigerant, with a GWP above 2500, the use of R404A is now prohibited in new equipment and restricted in pre-existing equipment. r404a refrigerant properties. R-404A rose to prominence in the late 1990’s with the phasing out of CFC and HCFC refrigerants like R-12 and R-502. R404A will soon be banned in new refrigeration applications in Europe, and from 2020 onwards, only recycled refrigerants can be used for servicing. On the other hand, refrigerants R449A and R452A exhibit 1.5 to 5K (2.7 to 9.0F) of temperature

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