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7 Ball valve technical data
Kv values:
GEMÜ B52
V-ball 60° (code Y)
DN
NPS
0
8
1/4"
0
10
3/8"
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
V-ball 90° (code W)
DN
NPS
0
8
1/4"
0
10
3/8"
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%
0.026
0.06
0.141 0.249 0.372 0.539 0.762 1.034
0.03
0.068 0.161 0.285 0.425 0.616 0.871 1.182 1.577 2.108
0.085 0.085 0.255 0.425 0.765
0.085
0.17
0.595
0.85
0.17
0.34
0.935
1.53
0.17
0.51
1.53
2.55
0.34
0.68
2.125
3.4
0.34
1.275
3.91
7.65
0.34
1.275
4.25
8.5
0.425 2.125
5.1
11.9
0.595
2.55
9.35
21.25
15%
20%
30%
40%
0.037 0.086 0.212
0.39
0.043 0.098 0.242 0.446 0.752 1.152
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
14 / 55
Opening angle
50%
60%
70%
1.19
1.7
1.445
2.38
3.4
2.89
4.505 6.715 10.46 13.01 17.85
4.675 8.075 10.88 16.15
6.8
11.05 16.15 22.95
14.03 22.95 33.15 46.75 70.55
17.85
28.9
45.05 63.75 87.55 127.5
21.25
34.0
55.25 77.35 108.8 140.3
34.0
50.15
76.5
Opening angle
50%
60%
70%
0.658 1.008 1.391 1.837 2.332 3.012
1.59
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%
1.38
1.845
2.805
3.74
5.1
5.525
7.65
10.2
22.1
33.15
34.0
44.2
93.5
119.9 180.2 302.6
80%
90%
100%
2.1
2.665 3.443
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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