Burkert Type 2301 - Manual (Page 17)

17
Technical data
DN4
0
0
2
4
6
8
10
12
14
16
0 1 2 3 4 5 6 7 8 9 10
DN3
2
DN5
0
pilot pressure [bar]
m
edium
pressure
[bar]
ø 130 cfB
Fig. 6: Pressure graph, actuator ø 130 mm, control function B
7.5 flow values and characteristics
7.5.1 flow characteristic
illustration as an example:
The detailed values are listed in the table below.
0
100
90
80
70
60
50
40
30
20
10
0 20 40 60 80 100
stroke [%]
k
v/
k
v s
[%]
Fig. 7: Flow characteristic
explanation on the flow characteristic:
• Equal-percentage parabolic cone for DN 8 – DN 50
• Linear cone for orifices DN 4 and DN 6
• Flow characteristic according to DIN / IEC 534-2-4
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Type 2301