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7 Ball valve technical data
Kv values:
GEMÜ B56
V-ball 90° (code W)
DN
NPS
0
15
1/2"
0
20
3/4"
0
25
1"
0
32
1¼"
0
40
1½"
0
50
2"
0
65
2½"
0
80
3"
0
100
4"
0
Kv values in m³/h
15%
20%
30%
40%
0.085
0.17
0.34
0.51
0.17
0.34
0.68
1.02
0.17
0.51
1.53
2.89
0.255
0.68
1.7
4.25
0.425 0.765 2.975
5.95
0.595
1.7
5.1
10.2
0.425 1.445
5.95
11.9
0.595 2.975
6.8
15.3
0.85
2.975
13.6
34.0
16 / 48
Opening angle
50%
60%
70%
0.765 1.275
1.87
1.7
2.635
3.91
4.335 6.885
9.69
6.8
11.9
16.15
11.05
17.0
26.35
18.7
29.75 38.25
23.8
40.8
59.5
29.75
51.0
76.5
63.75 106.3 161.5 250.8 375.7 569.5
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80%
90%
100%
3.23
4.59
5.865
6.8
9.605
11.9
13.6
17.85 24.65
23.8
33.15 46.75
35.7
53.55
66.3
59.5
89.25 114.8
90.1
136.0 185.3
114.8 174.3 263.5
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