Burkert Type 2101 - Manual (Page 15)

15
Technicaldata
required minimum pilot pressure depending on medium
pressure
The following graphs illustrate the required minimum pilot pressure
depending on the medium pressure for control functions A, B and I.
control function a, flow direction above seat
pilot pressure [bar]
m
edium
pressure
[bar]
ø 50
cfa above seat
0 1 2 3 4 5 6 7 8 9 10
0
2
4
6
8
10
12
14
16
DN15 DN20 DN25
Fig. 6: Pressure graph, actuator ø 50 mm, control function A, flow
direction above seat
pilot pressure [bar]
m
edium
pressure
[bar]
ø 70
cfa above seat
0 1 2 3 4 5 6 7 8 9 10
0
2
4
6
8
10
12
14
16
DN15 DN20 DN25 DN32 DN40 DN50
Fig. 7: Pressure graph, actuator ø 70 mm, control function A, flow
direction above seat
pilot pressure [bar]
m
edium
pressure
[bar]
ø 90
cfa above seat
0 1 2 3 4 5 6 7 8 9 10
0
2
4
6
8
10
12
14
16
DN40 DN50
DN65
Fig. 8: Pressure graph, actuator ø 90 mm, control function A, flow
direction above seat
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Type 2101