Burkert Type 2105 User Manual
Page 24
24
Technicaldata
flow characteristics for dn20
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. 30: Flow characteristics for DN20
flow values for dn25
stroke
forged body (Vs)
cast body (Vg)
epdm
ptfe
epdm
ptfe
Kv value
[m
3
/h]
[%]
[m
3
/h]
[%]
[m
3
/h]
[%]
[m
3
/h]
[%]
0
0
0
0
0
0
0
0
0
10
0.43
3
0.33
3
0.71
5
0.35
3
20
1.5
11
0.95
8
1.5
10
0.71
5
30
3.7
28
2.1
17
3.7
25
2.3
17
40
6.0
46
4.2
34
6.3
43
4.2
31
50
8.4
64
6.4
52
8.6
59
6.2
46
60
10.5
80
8.4
69
10.5
72
8.2
60
70
11.8
90
10.0
82
12.2
84
9.9
73
80
12.3
94
11.2
92
13.0
89
11.9
88
90
12.7
97
11.6
95
14.1
97
13.0
96
100
13.1
100
12.2
100
14.6
100
13.6
100
Tab. 11: Flow values for DN25
english
Type 2103, 2104, 2105