Burkert Type 2105 User Manual
Page 15
15
Technicaldata
Operating pressure for control function a
6)
The values apply to body made of
• forged steel (VS)
• precision casting (VG)
actuator
size
[mm]
Orifice
dn
[mm]
max. sealed medium pressure [bar]
pressure on one
side
pressure on both
sides
epdm/fkm
ptfe
epdm/fkm ptfe
ш 50
8
10
10
10
10
ш 50
15
7.5
5
5
3.5
ш 70
15
10
10
10
10
ш 70
20
10
10
10
7.5
ш 70
25
6.5
6
5.5
4.5
ш 90
10
8
10
7
ш 90
40
5,5
5
4
3
ш 130
10
10
10
9
ш 130
50
10
7
7
5
Tab. 7: Operating pressure for control function A
6)
The control functions are described in the chapter entitled “6.2.1
Control functions (CF)”.
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 B and I.
The values apply to body made of
• forged steel (VS)
• precision casting (VG)
When using Type 2103, 2104 or 2105 as a control valve,
pressure conditions may deviate in some cases. These con-
ditions appear in the diagrams with a gray background.
control function B / elastomer diaphragm
DN8
DN1
5
0
1
2
3
4
5
6
7
10
0
1
2
3
4
5
6
7
8
9
10
9
8
pilot pressure [bar]
m
edium
pressure
[bar]
ø 50 epdm
Fig. 6: Pressure graph, actuator ø 50 mm, control function B,
elastomer diaphragm
english
Type 2103, 2104, 2105