Alpha E-Tec 20S - E-Tec 20 S;30 S Available Pump Head and Power Consumption

6
Fig. 2.1
Fig. 2.2
2.4.1 E-Tec 20S Available Pump Head and Power Consumption
2.4.2 E-Tec 30S Available Pump Head and Power Consumption
Alpha E-Tec S 20 and 30 - Technical Data
A+B = Head available with by-pass closed
B = Head available with by-pass open
C+D = Power consumed by the pump with by-pass open (dotted area)
D = Power consumed by the pump with by-pass closed (dotted area)
A+B = Head available with by-pass closed
B = Head available with by-pass open
C+D = Power consumed by the pump with by-pass open (dotted area)
D = Power consumed by the pump with by-pass closed (dotted area)
Pump electrical consumption (W)
0
10
20
30
40
50
60
70
Flow rate (l/h)
200 600 1000 1400800 1200 16004000
0
1
2
3
4
5
6
7
Head (m water)
Pump electrical consumption (W)
0
10
20
30
40
50
60
70
Flow rate (l/h)
200 600 1000 1400800 1200 16004000
0
1
2
3
4
5
6
7
Head (m water)
Speed 9
Speed 9
Speed 6
Speed 9
Speed 9
Speed 5
C
D
B
A
C
B
D