Alpha InTec2 20SE Installation And Servicing Instruction page 6

2.4.1 Available Pump Head
7
6
5
4
3
2
1
0
A + B = Head available to the system with by-pass closed.
B = Head available to the system by-pass opened.
2.4.2 Pump Power Consumption
70
60
50
40
30
20
10
0
C + D = Pump power consumption with by-pass opened.
D = Pump power consumption with by-pass closed.
6
Alpha InTec² 20SE and 30SE - Technical Data
Speed 9
A
0 200 400
C
0 200 400
B
Speed 5
600 800 1000
Flow rate (l/h)
Fig. 2.1
Speed 9
D
Speed 5
600 800 1000
Flow rate (l/h)
Fig. 2.2
1200 1400 1600
1200 1400 1600