Brochure

88
TXV Extended Capacity Tables
Valve
Type
Nominal
Rating
Evaporator Temperature
10 ºC 4 ºC -7 ºC
Pressure Drop Across Valve (kPa) Pressure Drop Across Valve (kPa) Pressure Drop Across Valve (kPa)
500 800 1000 1100 1400 1700 2000 500 800 1000 1100 1400 1700 2000 500 800 1000 1100 1400 1700 2000
TFES
42 28.6 34.6 39.1 41.8 47.9 51.2 55.8 28.4 34.3 38.7 41.4 47.5 50.7 55.3 27.7 33.6 37.9 40.5 46.4 49.6 54.1
56 43.4 52.5 59.3 63.4 72.6 77.6 84.6 43.0 52.1 58.8 62.8 72.0 76.9 83.9 42.1 51.0 57.5 61.5 70.4 75.3 82.1
70 46.8 56.6 63.9 68.3 78.3 83.7 91.2 46.4 56.2 63.4 67.7 77.6 83.0 90.4 45.4 55.0 62.0 66.3 75.9 81.2 88.5
Valve
Type
Nominal
Rating
Evaporator Temperature
-18 ºC -29 ºC -40 ºC
Pressure Drop Across Valve (kPa) Pressure Drop Across Valve (kPa) Pressure Drop Across Valve (kPa)
500 800 1000 1100 1400 1700 2000 500 800 1000 1100 1400 1700 2000 500 800 1000 1100
1400 1700 2000
TFES
42 27.0 32.7 36.9 39.5 45.2 48.3 52.7 26.2 31.7 35.8 38.2 43.8 46.8 51.0 25.3 30.6 34.5 36.9 42.3 45.2 49.2
56 41.0 49.6 56.0 59.9 68.6 73.3 79.9 39.7 48.1 54.2 58.0 66.4 71.0 77.4 38.3 46.4 52.3 56.0 64.1 68.5 74.7
70 44.2 53.5 60.4 64.5 73.9 79.0 86.1 42.8 51.8 58.5 62.5 71.6 76.6 83.5 41.3 50.0 56.4 60.3 69.1 73.9 80.5
Note: 1. These ratings assume vapor free liquid entering the thermal expansion valve.
2. Standard capacity is rated at 38 ºC liquid inlet and 4.4 ºC evap temperature; with 11 bar pressure drop across TXV per ARI 750-2001.
R-410A Balanced Ported Valves (kWatts) - TFE Series
Refrigerant Liquid Temperature Correction Factors
Refrigerant Liquid Temperature °C
10 16 21 27 32 38 43 49 54 60
R-410A Correction Factor 1.37 1.30 1.23 1.15 1.08 1.00 0.92 0.84 0.75 0.65
These factors include corrections for liquid refrigerant density and net refrigeration effect and are based on an average evaporator temperature of 4.4 ºC with
maximum -14 ºC change in superheat. However, they may be used for any evaporator temperature.