ΔPC (bar) - Pressure head according to the temperature
20
25
-40
7
8.2
-35
6.8
8
-30
6.5
7.8
-25
6.2
7.5
-20
5.9
7.1
-15
5.5
6.7
-10
5
6.2
-5
4.4
5.6
0
4.9
5
10
15
Table 1: determine the design pressure head ΔP from the saturated evaporating temperature Tevap and condensing temperature Tcond for the chosen refrigerant.
Tliq [°C]
-22
-16
-10
CF
0.53
0.56
0.58
Table 2: identify the Correction Factor CF at the temperature nearest to Tliq (if no certain data is available, assume Tliq = Tcond –5°C)
Tevap. 15°C
4
6
E2V09B
1.4
1.7
E2V11B
2.4
3
E2V14B
3.7
4.5
E2V18B
5.2
6.4
E2V24B
10.5
12.8
E2V35B
21.1
25.8
E4V55A
51
62.5
E4V65A
70
86
E4V85A
97
119
E4V95A
135
166
Tevap. 10°C
4
6
E2V09B
1.3
1.6
E2V11B
2.4
2.9
E2V14B
3.6
4.4
E2V18B
5.1
6.3
E2V24B
10.2
12.5
E2V35B
20.6
25.3
E4V55A
50
61.2
E4V65A
69
84
E4V85A
95
117
E4V95A
132
162
Tevap. 5°C
6
8
E2V09B
1.6
1.8
E2V11B
2.8
3.3
E2V14B
4.3
5
E2V18B
6.2
7.1
E2V24B
12.3
14.2
E2V35B
24.7
28.5
E4V55A
59.9
69.1
E4V65A
82.3
95
E4V85A
114
132
E4V95A
158
183
Tevap. 0°C
6
8
E2V09B
1.6
1.8
E2V11B
2.8
3.2
E2V14B
4.3
5
E2V18B
6.2
7.1
E2V24B
12
13.8
E2V35B
24.1
27.8
E4V55A
58.4
67.4
E4V65A
80.2
93
E4V85A
111
128
E4V95A
155
179
Table 3: The equivalent cooling capacity values in the table refer to a liquid temperature at the valve inlet = 38°C. For temperatures other than 38°C, in the table identify the
valve with the equivalent capacity RATING that is higher than or equal to the required rated cooling capacity CAP multiplied by the coeffi cient shown in Table 2. To allow for any
uncertainty in the design data, the values in the tables correspond to 80% of the maximum effective cooling capacity.
Tcond – Saturated condensing temperature (°C)
30
35
40
9.6
11.1
12.8
9.4
10.9
12.5
9.1
10.6
12.3
8.8
10.3
12
8.5
10
11.6
8.0
9.5
11.2
7.5
9
10.7
7.0
8.5
10.1
6.3
7.8
9.5
5.5
7
8.7
4.7
6.2
7.8
5.2
6.8
CF – Correction factor for the temperature (°C) of the liquid at the valve inlet
-4
2
8
0.61
0.65
0.69
RATING (kW) – Equivalent cooling capacity of the CAREL valves