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ManualsBrandsEmerson Flow Controls ManualsA Series Thermal Expansion Valves3/8" x 1/2" ODF S/T Thermal Expansion Valve (2-1/2 Ton)
61626364656667686970
70
TXV Extended Capacity Tables
R-410A Balanced Ported Valves (Tons) – B Series
Valve Type
Nominal
Rating
Evaporator Temperature
50 ºF 40 ºF 20 ºF
Pressure Drop Across Valve (PSI) Pressure Drop Across Valve (PSI) Pressure Drop Across Valve (PSI)
75 110 140 160 210 240 285 75 110 140 160 210 240 285 75 110 140 160 210 240 285
BA/BN
1 0.8 1.0 1.1 1.2 1.3 1.4 1.6 0.8 1.0 1.1 1.2 1.3 1.4 1.5 0.8 0.9 1.1 1.1 1.3 1.4 1.5
1-1/2 1.3 1.6 1.8 1.9 2.2 1.4 1.6 1.3 1.6 1.7 1.9 2.1 2.3 2.5 1.3 1.5 1.7 1.8 2.1 2.2 2.4
2 1.8 2.2 2.5 2.6 3.0 3.2 3.5 1.8 2.2 2.4 2.6 3.0 3.2 3.5 1.7 2.1 2.4 2.6 2.9 3.1 3.4
3 2.3 2.8 3.1 3.3 3.8 4.1 4.5 2.3 2.8 3.1 3.3 3.8 4.1 4.4 2.2 2.7 3.0 3.2 3.7 4.0 4.3
3-1/2 3.0 3.6 4.0 4.3 5.0 5.3 5.8 2.9 3.6 4.0 4.3 4.9 5.3 5.7 2.9 3.5 3.9 4.2 4.8 5.1 5.6
4-1/2 4.1 5.0 5.6 6.0 6.9 7.4 8.0 4.1 5.0 5.6 6.0 6.9 7.3 8.0 4.0 4.9 5.5 5.9 6.7 7.2 7.8
6 5.1 6.1 6.9 7.4 8.5 9.0 9.9 5.0 6.1 6.8 7.3 8.4 9.0 9.8 4.9 5.9 6.7 7.2 8.2 8.8 9.6
7-1/2 6.2 7.5 8.5 9.1 10.4 11.1 12.1 6.2 7.5 8.4 9.0 10.3 11.0 12.0 6.0 7.3 8.2 8.8 10.1 10.8 11.8
Valve Type
Nominal
Rating
Evaporator Temperature
0 ºF -20 ºF -40 ºF
Pressure Drop Across Valve (PSI) Pressure Drop Across Valve (PSI) Pressure Drop Across Valve (PSI)
75 110 140 160 210 240 285 75 110 140 160 210 240 285 75 110 140 160 210 240 285
BA/BN
1 0.8 0.9 1.0 1.1 1.3 1.4 1.5 0.7 0.9 1.0 1.1 1.2 1.3 1.4 0.7 0.9 1.0 1.0 1.2 1.3 1.4
1-1/2 1.2 1.5 1.7 1.8 2.0 2.2 2.4 1.2 1.4 1.6 1.7 2.0 2.1 2.3 1.1 1.4 1.6 1.7 1.9 2.0 2.2
2 1.7 2.1 2.3 2.5 2.8 3.0 3.3 1.6 2.0 2.3 2.4 2.8 3.0 3.2 1.6 1.9 2.2 2.3 2.7 2.8 3.1
3 2.2 2.6 3.0 3.2 3.6 3.9 4.2 2.1 2.5 2.9 3.1 3.5 3.8 4.1 2.0 2.5 2.8 3.0 3.4 3.6 3.9
3-1/2 2.8 3.4 3.8 4.1 4.7 5.0 5.5 2.7 3.3 3.7 4.0 4.5 4.8 5.3 2.6 3.2 3.6 3.8 4.4 4.7 5.1
4-1/2 3.9 4.7 5.3 5.7 6.5 7.0 7.6 3.8 4.6 5.2 5.5 6.3 6.8 7.4 3.6 4.4 5.0 5.3 6.1 6.5 7.1
6 4.8 5.8 6.5 7.0 8.0 8.5 9.3 4.6 5.6 6.3 6.8 7.7 8.3 9.0 4.5 5.4 6.1 6.5 7.5 8.0 8.7
7-1/2 5.9 7.1 8.0 8.6 9.8
10.5 11.4 5.7 6.9 7.8 8.3 9.5 10.2 11.1 5.5 6.6 7.5 8.0 9.2 9.8 10.7
Note: Standard capacity is rated at 100 ºF liquid inlet and 40 ºF evap temperature; with 160 Psi pressure drop across TXV per ARI-750-2001.
These ratings assume vapor free liquid entering the thermal expansion valve.