Boiler house Level controls
2
For alternative sizes to the standard DN40 (1½")
4. Selection of the actuator + valve adaptor The actuator has to be capable of shutting off against the maximum feedpump pressure when the boiler is not under pressure. Select the actuator from the table below: Metal Seat (T, S or W) PEEK Seat (P or C) At Feedwater temperature >50°C body rating must be considered Feedwater temperature ≤100°C Feedwater temperature >100°C
AEL72211JXA (0.4 mm/s) AEL72211GXA (0.4 mm/s) AEL72213FXA (0.4 mm/s)
AEL72211JXA (0.4 mm/s) AEL72211GXA (0.4 mm/s) AEL72213FXA (0.4 mm/s) AEL72224KXA
220/240 Vac AEL73221JXA
AEL73221JXA
110 Vac AEL73222GXA
AEL73222GXA
Actuator Type
2.3 92
24 Vac AEL73223FXA
AEL73223FXA
24 Vdc AEL73224KXA AEL72224KXA
AEL73224KXA
Size
Kv value
Maximum feedpump pressure bar g
36.0
29.1
(26.5)
11.5
(8.8)
32.2
(29.6)
14.6
(12.0)
25.0
37.1
(33.8)
15.0
(11.7)
18.0
(15.3)
DN50 Valve Size
16.0
(33.0)
40.0
(40.0)
40.0
(40.0)
40.0
19.0
(19.0)
10.0
(40.0)
16.0
(33.0)
40.0
(40.0)
10.0
DN32 Valve Size
40.0
(40.0)
40.0
19.0
(19.0)
6.3
(40.0)
N/A
N/A
4.0
10.0
40.0
(40.0)
6.3 4.0 1.6 6.3 4.0 1.6 1.0 4.0 1.6 1.0
DN25 Valve Size
40.0
(40.0)
40.0
(40.0)
19.0
(19.0)
N/A
N/A
DN20 Valve Size
40.0
(40.0)
40.0
(40.0)
N/A
N/A
19.0
(19.0)
DN15 Valve Size
40.0
(40.0)
40.0
(40.0)
N/A
N/A
19.0
(19.0)
Auxiliary Switch
AEL7X010
Valve adaptor
Integral
Mounting flange
EL5970
Spindle speed 0.8mm/s unless otherwise statedFigures in brackets denotes the differential pressures for valves fitted with high temperature graphite stem sealing. These valves have a suffix 'H'. Valve stroke is 20 mm.
TI-S75-11 EMM Issue 5
Page 6 of 7
Selection of Modulating Feedwater Valves Electrically Actuated
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