Burkert Type 2105 - Manual (Page 27)

27
Technicaldata
flow characteristics for dn50
0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50 60 70 80 90 100
stroke [%]
k
v
value
[%
]
Vg
Vs
Fig. 33: Flow characteristics for DN50
7.6 general technical data
control functions (cf)
Control function A Normally closed by spring action
Control function B Normally open by spring action
Control function I Actuating function via reciprocal
pressurization
actuator sizes ø 50 mm
ø 70 mm
ø 90 mm
ø 130 mm
materials
Body type 2103 Precision casting (VG),
forged steel (VS)
Body type 2104, 2105 VA block material
Actuator PPS and stainless steel
Sealing elements FKM and EPDM
Diaphragm EPDM, PTFE, FKM
english
Type 2103, 2104, 2105