Thermostatic expansion valves TUA/TUAE

Technical brochure
Thermostatic expansion valves, type TUA/TUAE
Capacity (continued)
Capacity in kW for range B = −60 → −25°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
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
0.36
0.48
0.61
0.85
1.3
1.7
2.5
3.4
5.1
7.6
0.27
0.31
0.36
0.51
0.75
1.0
1.5
2.0
3.0
4.5
0.14
0.14
0.16
0.23
0.34
0.45
0.67
0.91
1.4
2.0
0.45
0.62
0.79
1.10
1.6
2.2
3.3
4.4
6.6
9.7
0.34
0.39
0.46
0.65
0.96
1.3
1.9
2.6
3.9
5.7
0.17
0.18
0.21
0.29
0.43
0.57
0.85
1.1
1.7
2.5
Evaporating temperature –25°C
0.50
0.69
0.89
1.25
1.9
2.5
3.7
5.0
7.5
11.0
0.54
0.74
0.96
1.34
2.0
2.7
4.0
5.4
8.0
11.9
0.56
0.77
1.01
1.41
2.1
2.8
4.2
5.6
8.4
12.4
0.58
0.79
1.04
1.45
2.1
2.9
4.3
5.8
8.7
12.8
Evaporating temperature –40°C
0.37
0.44
0.52
0.73
1.1
1.4
2.2
2.9
4.4
6.4
0.40
0.47
0.56
0.79
1.2
1.6
2.3
3.1
4.7
6.8
0.42
0.50
0.59
0.82
1.2
1.6
2.4
3.2
4.9
7.1
0.43
0.51
0.60
0.85
1.2
1.7
2.5
3.3
5.0
7.3
Evaporating temperature –60°C
0.19
0.20
0.23
0.33
0.48
0.64
0.95
1.3
1.9
2.8
0.21
0.22
0.25
0.35
0.51
0.68
1.01
1.4
2.1
3.0
0.21
0.22
0.26
0.36
0.53
0.71
1.05
1.4
2.1
3.1
0.22
0.23
0.26
0.37
0.54
0.73
1.08
1.5
2.2
3.2
0.59
0.81
1.06
1.48
2.2
2.9
4.4
5.9
8.9
13.1
0.43
0.52
0.61
0.86
1.3
1.7
2.5
3.4
5.1
7.5
0.22
0.23
0.27
0.38
0.55
0.74
1.09
1.5
2.2
3.2
0.59
0.81
1.07
1.50
2.2
3.0
4.5
6.0
8.9
13.2
0.44
0.52
0.62
0.87
1.3
1.7
2.6
3.4
5.2
7.5
0.22
0.23
0.27
0.38
0.55
0.74
1.10
1.5
2.2
3.2
0.33
0.42
0.52
0.73
1.1
1.4
2.1
2.9
4.3
6.4
0.20
0.21
0.25
0.35
0.51
0.68
1.0
1.4
2.1
3.0
0.42
0.54
0.67
0.93
1.4
1.9
2.8
3.7
5.6
8.2
0.25
0.27
0.31
0.44
0.65
0.87
1.3
1.7
2.6
3.8
Evaporating temperature –30°C
0.46
0.61
0.75
1.1
1.6
2.1
3.1
4.2
6.3
9.3
0.49
0.66
0.81
1.1
1.7
2.2
3.4
4.5
6.8
10.0
0.52
0.68
0.85
1.2
1.8
2.4
3.5
4.7
7.1
10.4
0.53
0.70
0.88
1.2
1.8
2.4
3.6
4.9
7.3
10.7
Evaporating temperature –50°C
0.28
0.30
0.35
0.50
0.72
0.97
1.4
1.9
2.9
4.3
0.30
0.32
0.38
0.53
0.77
1.0
1.5
2.1
3.1
4.6
0.31
0.34
0.39
0.55
0.81
1.1
1.6
2.2
3.3
4.8
0.32
0.35
0.40
0.57
0.83
1.1
1.7
2.2
3.4
4.9
0.54
0.71
0.89
1.3
1.8
2.5
3.7
4.9
7.4
10.9
0.33
0.35
0.41
0.58
0.84
1.1
1.7
2.3
3.4
5.0
R22
0.54
0.72
0.90
1.3
1.9
2.5
3.7
5.0
7.5
11.0
0.33
0.35
0.41
0.58
0.85
1.1
1.7
2.3
3.4
5.0
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 1.06 1.11 1.15 1.2 1.25 1.3 1.35 1.39 1.44
8 DKRCC.PD.AG0.A3.02 / 520H4543 © Danfoss A/S (AG-SMC / bpv), 07 - 2010