Thermostatic expansion valves TUA/TUAE

Technical brochure
Thermostatic expansion valves, type TUA/TUAE
Capacity (continued)
Capacity in kW for range N = −40 → +10°C and opening superheat OS = 4 K
Valve type
TU
TU
TU
Orifice
no.
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
Pressure drop across valve ∆p bar
Pressure drop across valve ∆p bar
R134a
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
0.38
0.57
0.82
1.1
1.7
2.3
3.4
4.6
6.8
10.2
0.31
0.41
0.51
0.71
1.1
1.4
2.1
2.8
4.3
6.3
0.46
0.69
1.1
1.4
2.2
2.9
4.4
5.9
8.7
13.1
0.37
0.51
0.64
0.89
1.3
1.8
2.7
3.5
5.3
7.9
0.25
0.28
0.32
0.46
0.67
0.90
1.3
1.8
2.7
4.0
Evaporating temperature +10°C Evaporating temperature 0°C
0.50
0.76
1.2
1.6
2.5
3.3
4.9
6.6
9.8
14.6
0.53
0.79
1.2
1.7
2.6
3.5
5.2
7.0
10.3
15.5
0.54
0.81
1.3
1.8
2.7
3.6
5.4
7.2
10.6
15.9
0.54
0.81
1.3
1.8
2.7
3.6
5.5
7.2
10.8
16.0
Evaporating temperature –10°C
0.40
0.55
0.70
0.98
1.5
2.0
2.9
3.9
5.9
8.7
0.42
0.58
0.74
1.0
1.5
2.1
3.1
4.1
6.2
9.1
0.43
0.58
0.75
1.1
1.6
2.1
3.1
4.2
6.3
9.3
0.43
0.58
0.76
1.1
1.6
2.1
3.2
4.2
6.3
9.3
Evaporating temperature –30°C
0.27
0.30
0.35
0.50
0.73
0.98
1.5
2.0
3.0
4.3
0.28
0.32
0.37
0.52
0.76
1.02
1.5
2.0
3.1
4.5
0.28
0.32
0.37
0.53
0.77
1.03
1.5
2.1
3.1
4.5
0.28
0.32
0.37
0.52
0.76
1.0
1.5
2.1
3.1
4.5
0.35
0.50
0.66
0.92
1.4
1.8
2.8
3.7
5.5
8.3
0.42
0.61
0.84
1.2
1.8
2.3
3.5
4.7
7.0
10.4
0.31
0.39
0.47
0.65
0.96
1.3
1.9
2.6
3.9
5.7
0.18
0.19
0.22
0.31
0.45
0.61
0.90
1.2
1.8
2.7
0.46
0.66
0.93
1.3
1.9
2.6
3.9
5.2
7.8
11.5
0.48
0.69
0.98
1.4
2.0
2.7
4.1
5.5
8.2
12.2
0.49
0.70
1.0
1.4
2.1
2.8
4.2
5.6
8.4
12.4
0.49
0.71
1.0
1.4
2.1
2.8
4.3
5.7
8.5
12.5
Evaporating temperature –20°C
0.34
0.43
0.51
0.72
1.05
1.4
2.1
2.8
4.3
6.2
0.35
0.44
0.53
0.75
1.10
1.5
2.2
3.0
4.4
6.5
0.35
0.45
0.54
0.76
1.12
1.5
2.2
3.0
4.5
6.6
0.35
0.45
0.54
0.76
1.1
1.5
2.2
3.0
4.5
6.6
Evaporating temperature –40°C
0.19
0.21
0.24
0.34
0.49
0.66
0.97
1.3
2.0
2.9
0.20
0.21
0.25
0.35
0.50
0.68
1.0
1.4
2.1
3.0
0.20
0.21
0.25
0.35
0.51
0.68
1.0
1.4
2.1
3.0
0.20
0.21
0.25
0.35
0.51
0.68
1.0
1.4
2.1
3.0
Correction for subcooling ∆t sub
The evaporator capacity used must be corrected
if subcooling deviates from 4 K.
The corrected capacity can be obtained
by dividing the evaporator capacity by the
correction factor given below.
Note:
Insufficient subcooling can produce flash gas.
Correction factor for subcooling ∆t sub
∆t sub 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
Correction factor 1.00 1.08 1.13 1.19 1.25 1.31 1.37 1.42 1.48 1.54
© Danfoss A/S (AG-SMC / bpv), 07 - 2010 DKRCC.PD.AG0.A3.02 / 520H4543 9