Brochure

Emerson Climate Technologies
175
EX Extended Capacity Tables
R-407 Extended Capacities (EXV)
As Expansion Valve The Following Correction Factors (kt) Related To Evaporating And Condensing Temperatures Apply
Liquid temperature °C
Correction factors for EXV Evaporating temperature °C
+20 +15 +10 [phone] -40 -45
+65 1.51 1.53 1.55 1.58 1.61 1.64 1.68 1.71 1.75 1.80 1.85 1.90 1.96 2.02
+60 1.35 1.37 1.39 1.41 1.43 1.46 1.49 1.52 1.55 1.59 1.63 1.67 1.71 1.76
+55 1.23 1.25 1.26 1.28 1.30 1.32 1.35 1.37 1.40 1.43 1.46 1.50 1.53 1.57
+50 1.14 1.15 1.16 1.18 1.20 1.22 1.24 1.26 1.28 1.31 1.33 1.36 1.39 1.43
+45 1.06 1.07 1.08 1.10 1.11 1.13 1.14 1.16 1.18 1.20 1.23 1.25 1.28 1.31
+40 0.99 1.00 1.01 1.02 1.04 1.05 1.07 1.08 1.10 1.12 1.14 1.16 1.18 1.21
+35 0.93 0.94 0.95 0.96 0.97 0.99 1.00 1.01 1.03 1.05 1.06 1.08 1.10 1.13
+30 0.88 0.89 0.90 0.91 0.92 0.93 0.94 0.95 0.97 0.98 1.00 1.02 1.03 1.05
+25 0.83 0.84 0.85 0.86 0.87 0.88 0.89 0.90 0.91 0.93 0.94 0.96 0.97 0.99
+20 0.79 0.80 0.81 0.82 0.82 0.83 0.84 0.85 0.87 0.88 0.89 0.91 0.92 0.94
+15 0.76 0.76 0.77 0.78 0.78 0.79 0.80 0.81 0.82 0.83 0.85 0.86 0.87 0.89
+10 0.72 0.73 0.74 0.74 0.75 0.76 0.77 0.77 0.78 0.79 0.81 0.82 0.83 0.84
+5 0.69 0.70 0.70 0.71 0.72 0.72 0.73 0.74 0.75 0.76 0.77 0.78 0.79 0.80
0 0.66 0.67 0.68 0.68 0.69 0.69 0.70 0.71 0.72 0.73 0.73 0.74 0.75 0.77
-5 0.64 0.64 0.65 0.65 0.66 0.67 0.67 0.68 0.69 0.70 0.70 0.71 0.72 0.73
-10 0.62 0.62 0.62 0.63 0.63 0.64 0.65 0.65 0.66 0.67 0.68 0.68 0.69 0.70
For Applications As Expansion Valve The Following Correction Factors (kΔp)
Related To The Pressure Drop At Valve Apply
Correction factors for EXVs
ΔP (bar)
1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5
kΔP
3.51 2.87 2.48 2.22 2.03 1.88 1.76 1.66 1.57 1.5 1.43 1.38 1.33 1.28
ΔP (bar)
8 9 10 11 12 13 14 15 16 17 18 19 20 21
kΔP
1.24 1.17 1.11 1.06 1.01 0.97 0.94 0.91 0.88 0.85 0.83 0.81 0.79 0.77
Application Hot Gas Bypass - Nominal Capacities (kW)
Valve Type Kv, m3/h R22 / R407C R134a R404A / R507
EX4
0.21 4.9 3.4 4.6
EX5
0.68 16 11 15
EX6
1.57 37 26 35
EX7
5.58 131 92 126
EX8
16.95 399 278 382
The nominal capacity (Qn) is based on the following conditions:
Refrigerant Evaporating temperature Condensing temperature Subcooling
R407C +4°C (dew point)
+38°C bubble point /
+43°C dew point
1K
R22, R134a, R404A, R507 +4°C +38°C 1K
For other operating conditions use Excel-based Selection
Tool (download rom www.emersonclimate.eu) or use the
following quick selection tables.
Biow versions are not released for hot gas bypass applications.
EX4 .. EX8 must be installed with motor downward in hot gas line applications. This
ensures the valve life expectancy. Install a check valve
on main hot gas line just after branch to Control Valve.