Kv values:
DN
Kv values
32
16.2
40
22.2
50
54
65
75
80
112
100
172
125
342
150
490
200
1128
250
1500
300
2290
350
2890
400
3700
450
5000
500
6550
600
9500
Kv values in m³/h
Pressure for disc
opening:
A minimum back pressure of 0.3 bar is required for sealing the check valve.
DN
Piping
Horizontal
Vertical
Spring
Without
with
Without
with
32
2
15
10
25
40
2
15
10
25
50
2
15
10
25
65
2
15
10
25
80
2
15
10
25
100
2
15
10
25
125
2
15
10
25
150
2
15
10
25
200
4
17
14
25
250
4
17
14
25
300
4
17
14
25
350
6
18
18
27
400
6
18
18
28
450
6
18
18
28
500
6
18
24
34
600
6
18
26
36
Pressures in mbar
GEMÜ ZRSK
www.gemu-group.com
11 / 22
7 Technical data
