Burkert 3280 - Fluidic Data

19
Technical data
Type 3280, 3285
5 10
10
15 20
20
30
40
50
60
70
80
90
100
25 30
35 40 45
50
55 60 65
Max. ambient temperature [°C]
Duty cycle [%]
Normal operation
Low power function
Type 3280
Seat ø 1...6 Positioner and process controller
Seat ø 8, 10 Standard
Seat ø 1...6 > 6 bar, Standard
5 10
10
15 20
20
30
40
50
60
70
80
90
100
25 30
35 40 45
50
55 60 65
Max. ambient temperature [°C]
Duty cycle [%]
Normal operation
Low power function
Type 3285
Seat ø 8...25 Positioner and process controller
Type 3280
Seat ø 8...10 Positioner and process controller
(only up to 50 °C)
Figure 7: Derating curve for control positioner, process controller and standard version
6.7 Fluidic data
Type
Seat diameter KV
s value
[m³/h]
3)
Max. pressure for flam-
mable gases [bar]
Max. pressure
[bar]
3280
1 0.03 3
See general information
on the type label
1.5 0.065 3
2 0.15 3
3 0.3 3
4 0.5 3
5 0.7 3
6 0.9 3
8 1.5 3
10 1.9 3
3285
8 1.8 3
10 2.5 3
12 3.9 3
15 5.4 3
20 8.1 3
25 9.6 3
3) The KV
s value
is a flow rate value for water, measurement at +20 °C and 1 bar pressure difference above the fully opened
valve.
english