Brochure

Emerson Climate Technologies
54
Thermal Expansion Valves
Liquid
Temperature
entering Valve
°C
R404A
Correction Factor kt
Evaporating Temperature (°C)
+30 +25 +20 +15 +10 +5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45
+60 1.56 1.59 1.64 1.69 1.74 1.81 1.88 1.96 2.06 2.16 2.28 2.42 2.57 2.75 2.95 3.19
+55 1.32 1.35 1.38 1.42 1.46 1.50 1.55 1.61 1.68 1.75 1.83 1.92 2.01 2.13 2.25 2.39
+50 1.16 1.18 1.20 1.23 1.26 1.30 1.34 1.38 1.43 1.48 1.54 1.61 1.68 1.75 1.84 1.94
+45 1.04 1.05 1.07 1.10 1.12 1.15 1.18 1.22 1.26 1.30 1.34 1.39 1.45 1.51 1.57 1.64
+40 0.94 0.96 0.97 0.99 1.02 1.04 1.07 1.09 1.13 1.16 1.20 1.24 1.28 1.33 1.38 1.43
+35 0.87 0.88 0.90 0.91 0.93 0.95 0.97 1.00 1.02 1.05 1.08 1.11 1.15 1.19 1.23 1.27
+30 0.81 0.82 0.83 0.84 0.86 0.88 0.90 0.92 0.94 0.96 0.99 1.02 1.05 1.08 1.11 1.15
+25 0.76 0.77 0.79 0.80 0.82 0.83 0.85 0.87 0.89 0.92 0.94 0.97 0.99 1.02 1.05
+20 0.73 0.74 0.75 0.77 0.78 0.80 0.81 0.83 0.85 0.87 0.90 0.92 0.95 0.97
+15 0.70 0.71 0.72 0.73 0.75 0.76 0.78 0.80 0.82 0.84 0.86 0.88 0.90
+10 0.67 0.68 0.69 0.71 0.72 0.74 0.75 0.77 0.79 0.81 0.83 0.85
+5 0.65 0.66 0.67 0.68 0.70 0.71 0.73 0.74 0.76 0.78 0.80
0 0.63 0.64 0.65 0.66 0.68 0.69 0.71 0.72 0.74 0.75
-5 0.61 0.62 0.63 0.65 0.66 0.67 0.69 0.70 0.72
-10 0.60 0.61 0.62 0.63 0.64 0.65 0.67 0.68
Correction Factor kΔp
Δp (bar) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 8.0 9.0
KΔp 4.55 3.21 2.62 2.27 2.03 1.86 1.72 1.61 1.52 1.44 1.37 1.31 1.26 1.21 1.14 1.07
Δp (bar) 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0
KΔp 1.02 0.97 0.93 0.89 0.86 0.83 0.80 0.78 0.76 0.74 0.72 0.70 0.69 0.67 0.66 0.64
231
Liquid
Temperature
entering Valve
°C
R407C
Correction Factor kt
Evaporating Temperature (°C)
+30 +25 +20 +15 +10 +5 0 -5 -10 -15 -20 -25
+55 1.20 1.21 1.23 1.26 1.28 1.31 1.34 1.37 1.40 1.44 1.48 1.52
+50 1.10 1.11 1.13 1.15 1.17 1.19 1.22 1.24 1.27 1.30 1.33 1.37
+45 1.02 1.03 1.05 1.06 1.08 1.10 1.12 1.14 1.17 1.19 1.22 1.25
+40 0.95 0.96 0.98 0.99 1.01 1.02 1.04 1.06 1.08 1.11 1.13 1.16
+35 0.89 0.90 0.92 0.93 0.94 0.96 0.98 0.99 1.01 1.03 1.05 1.07
+30 0.85 0.85 0.87 0.88 0.89 0.90 0.92 0.93 0.95 0.97 0.99 1.01
+25 0.81 0.82 0.83 0.84 0.85 0.87 0.88 0.90 0.91 0.93 0.95
+20 0.78 0.79 0.80 0.81 0.82 0.84 0.85 0.86 0.88 0.90
+15 0.75 0.76 0.77 0.78 0.80 0.81 0.82 0.84 0.85
+10 0.73 0.74 0.75 0.76 0.77 0.78 0.80 0.81
+5 0.71 0.72 0.73 0.74 0.75 0.76 0.77
0 0.69 0.70 0.71 0.72 0.73 0.74
-5 0.67 0.68 0.69 0.70 0.71
-10 0.65 0.66 0.67 0.68
Correction Factor kΔp
Δp (bar) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 8.0 9.0
KΔp 4.78 3.33 2.72 2.36 2.11 1.92 1.78 1.67 1.57 1.49 1.42 1.36 1.31 1.26 1.18 1.11
Δp (bar) 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0
KΔp 1.05 1.01 0.96 0.92 0.89 0.86 0.83 0.81 0.79 0.76 0.75 0.73 0.71 0.70 0.68 0.67
Note: See beginning of this chapter for determining of conditions for systems with R407C.
935 Series