Saturday, June 29, 2019

Physical Properties of Refrigerants R-417A Environmental Classification HFC! By Imran

Physical Properties of Refrigerants R-417A Environmental Classification HFC
Molecular Weight 106.8 Bubble Point (1 atm, ºC) -39.1 Critical Pressure (bar-abs) 40.4 Critical Temperature (ºC) 87.1 Critical Density (Kg/m^3) 520.6 Liquid Density (25 ºC, Kg/m^3) 1151.3 Vapor Density (bp,Kg/m^3) 5.681 Heat of Vaporization (bp, KJ/Kg) 200.75 Ozone Depletion Potential (CFC 11 = 1.0) 0 Global Warming Potential (CO2 = 1.0) 1950 ASHRAE Standard 34 Safety Rating A1 Temperature Glide (ºC) 5.5 Composition: A blend of HFC refrigerants R-125, R-134A and hydrocarbon R-600 (butane) (46.6 / 50 / 3.4 wt%) Application: An alternative to R-22 in medium temperature refrigeration and air conditioning. Performance: Both suction and discharge pressures will run lower than R-22, which may affect valve operation or orifice tube selection. Loss of capacity may be significant at lower evaporator temperatures, but generally not a problem in properly sized equipment at warmer application temperatures. Lubricant: The hydrocarbon component in R-417A helps promote oil return in systems containing mineral oil or alkylbenzene. Although HFC refrigerants won’t mix with these oils, the hydrocarbon addition thins the oil and keeps it moving around the loop. More complicated piping arrangements or large hold-up volumes may still require some oil be changed to POE. R-417A R-417A Available in the following sizes: 26R417ART 12 Kg RETURNABLE CYLINDER 44R417ART 20 Kg RETURNABLE CYLINDER 100R417ART 46 Kg RETURNABLE CYLINDER 1587R417ART 720 Kg RETURNABLE DRUM

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