Burkert 2300 Démarrage Rapide page 10

Technical data
7.4.2 control medium
In conjunction with pneumatic control units (positioner and process
controllers), pilot air according to DIN ISO 8573-1 must be used:
• Class 3 (for water content),
• Class 5 (for dust and oil content).
The specification is described in detail in the operating
instructions of the respective positioner / process controller
in the chapter entitled "Technical data".
7.4.3 Pressure ranges
maximum pilot pressure for valves without pneumatic control units
actuator size [mm] actuator material
ø 50
ø 70
PPS
ø 90
ø 130
Tab. 2: Pilot pressure for valves without pneumatic control units
Observe the maximum pressure range according to the type
4)
4)
label!
minimum control pressure P
actuator size 50 / 70 / 90
[mm]
P [bar] 5.5
min
Tab. 3: Minimum control pressure for CFA
Typ 2300
max. permitted
pilot pressure
10 bar
7 bar
for control function a
min
130 130
(Connection size (Connection size
DN40 and DN50) DN65)
5.5 5.6
Pilot pressure for control function b
actuator connection
size size [mm]
15
ø 50 mm 20
25
15
20
ø 70 mm
25
32
4)
25
32
ø 90 mm
40
50
40
ø 130 mm 50
65
Tab. 4: Pilot pressure for control function B
* According to Pressure Equipment Directive for compressible fluids of Group
1 (hazardous gases and vapors according to Art. 3 No. 1.3 Letter a first dash)
The required minimum pilot pressure P
I (flow below the seat) is dependent on the pressure of the medium.
The pressure diagrams are in the operating instructions on
the Internet:
Pilot pressure [bar]
for medium
pressure
0 bar max
4.6 6.6
5.1 7.0
5.1 7.0
4.4 5.3
5.2 6.8
5.2 7.0
5.2 7.0
2.4 4.2
2.4 5.3
2.5 6.5
2.5 7.0
2.7 4.5
2.7 5.6
2.7 7.0
with control function B and
min
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max. permitted
medium
pressure [bar]
16
9
5
16
16
12
6
16
16
16
14
16
16
16 (15*)
9