DCFM SIZING CHART
OIL SEPARATOR
DISCHARGE CFM
SIZING CHART
Example of use
Find the DCFM value for the refrigerant being used at the appropriate evaporating and condensing temperature. Then, multiply this value by the system tonnage at the operating conditions. Use this value to select an oil separator with the nearest maximum DCFM value to the calculated DCFM.
Example:
R134A, 20 Tons at 20°F/110°F = 1.02 DCFM
Total DCFM = 20 tons x 1.02 DCFM = 20.40
For refrigerants and conditions not listed, see our online sizing calculator or contact us for assistance.
Refrigerant | Condensing Temp. | Evaporating Temp. | ||||||||
-40°F | -30°F | -20°F | -10°F | 0°F | 10°F | 20°F | 30°F | 40°F | ||
R134A | 80°F | 1.6 | 1.56 | 1.52 | 1.48 | 1.45 | 1.42 | 1.39 | 1.36 | 1.33 |
90°F | 1.44 | 1.4 | 1.37 | 1.33 | 1.3 | 1.27 | 1.24 | 1.22 | 1.19 | |
100°F | 1.31 | 1.27 | 1.24 | 1.21 | 1.17 | 1.15 | 1.12 | 1.09 | 1.07 | |
110°F | 1.2 | 1.17 | 1.13 | 1.1 | 1.07 | 1.04 | 1.02 | 0.99 | 0.97 | |
120°F | 1.11 | 1.08 | 1.04 | 1.01 | 0.98 | 0.95 | 0.93 | 0.91 | 0.88 | |
R22 | 80°F | 1.03 | 1.01 | 1 | 0.98 | 0.97 | 0.96 | 0.94 | 0.93 | 0.92 |
90°F | 0.93 | 0.91 | 0.9 | 0.89 | 0.87 | 0.86 | 0.85 | 0.84 | 0.83 | |
100°F | 0.84 | 0.83 | 0.81 | 0.8 | 0.79 | 0.78 | 0.77 | 0.76 | 0.75 | |
110°F | 0.77 | 0.75 | 0.74 | 0.73 | 0.72 | 0.71 | 0.7 | 0.69 | 0.68 | |
120°F | 0.71 | 0.69 | 0.68 | 0.67 | 0.65 | 0.64 | 0.63 | 0.62 | 0.61 | |
R404A | 80°F | 1.02 | 1 | 0.96 | 0.94 | 0.92 | 0.89 | 0.87 | 0.85 | 0.83 |
90°F | 0.95 | 0.92 | 0.89 | 0.86 | 0.84 | 0.81 | 0.8 | 0.78 | 0.76 | |
100°F | 0.88 | 0.85 | 0.81 | 0.79 | 0.76 | 0.74 | 0.72 | 0.7 | 0.68 | |
110°F | 0.83 | 0.8 | 0.77 | 0.74 | 0.71 | 0.69 | 0.67 | 0.65 | 0.63 | |
120°F | 0.77 | 0.75 | 0.71 | 0.68 | 0.66 | 0.63 | 0.61 | 0.59 | 0.58 | |
R410A | 80°F | - | - | - | - | 0.62 | 0.62 | 0.61 | 0.6 | 0.6 |
90°F | - | - | - | - | 0.56 | 0.55 | 0.55 | 0.54 | 0.53 | |
100°F | - | - | - | - | 0.5 | 0.5 | 0.49 | 0.49 | 0.48 | |
110°F | - | - | - | - | 0.46 | 0.45 | 0.44 | 0.44 | 0.43 | |
120°F | - | - | - | - | 0.42 | 0.41 | 0.4 | 0.4 | 0.39 |
Refrigerant | Condensing Temp. | Evaporating Temp. | ||||||||
-40°F | -30°F | -20°F | -10°F | 0°F | 10°F | 20°F | 30°F | 40°F | ||
R134A | 80°F | 1.6 | 1.56 | 1.52 | 1.48 | 1.45 | 1.42 | 1.39 | 1.36 | 1.33 |
90°F | 1.44 | 1.4 | 1.37 | 1.33 | 1.3 | 1.27 | 1.24 | 1.22 | 1.19 | |
100°F | 1.31 | 1.27 | 1.24 | 1.21 | 1.17 | 1.15 | 1.12 | 1.09 | 1.07 | |
110°F | 1.2 | 1.17 | 1.13 | 1.1 | 1.07 | 1.04 | 1.02 | 0.99 | 0.97 | |
120°F | 1.11 | 1.08 | 1.04 | 1.01 | 0.98 | 0.95 | 0.93 | 0.91 | 0.88 | |
R22 | 80°F | 1.03 | 1.01 | 1 | 0.98 | 0.97 | 0.96 | 0.94 | 0.93 | 0.92 |
90°F | 0.93 | 0.91 | 0.9 | 0.89 | 0.87 | 0.86 | 0.85 | 0.84 | 0.83 | |
100°F | 0.84 | 0.83 | 0.81 | 0.8 | 0.79 | 0.78 | 0.77 | 0.76 | 0.75 | |
110°F | 0.77 | 0.75 | 0.74 | 0.73 | 0.72 | 0.71 | 0.7 | 0.69 | 0.68 | |
120°F | 0.71 | 0.69 | 0.68 | 0.67 | 0.65 | 0.64 | 0.63 | 0.62 | 0.61 | |
R404A | 80°F | 1.02 | 1 | 0.96 | 0.94 | 0.92 | 0.89 | 0.87 | 0.85 | 0.83 |
90°F | 0.95 | 0.92 | 0.89 | 0.86 | 0.84 | 0.81 | 0.8 | 0.78 | 0.76 | |
100°F | 0.88 | 0.85 | 0.81 | 0.79 | 0.76 | 0.74 | 0.72 | 0.7 | 0.68 | |
110°F | 0.83 | 0.8 | 0.77 | 0.74 | 0.71 | 0.69 | 0.67 | 0.65 | 0.63 | |
120°F | 0.77 | 0.75 | 0.71 | 0.68 | 0.66 | 0.63 | 0.61 | 0.59 | 0.58 | |
R410A | 80°F | - | - | - | - | 0.62 | 0.62 | 0.61 | 0.6 | 0.6 |
90°F | - | - | - | - | 0.56 | 0.55 | 0.55 | 0.54 | 0.53 | |
100°F | - | - | - | - | 0.5 | 0.5 | 0.49 | 0.49 | 0.48 | |
110°F | - | - | - | - | 0.46 | 0.45 | 0.44 | 0.44 | 0.43 | |
120°F | - | - | - | - | 0.42 | 0.41 | 0.4 | 0.4 | 0.39 |