KE VALVE V-Port Ball are ideal for achieving more precise control than traditional round ported ball
valves with the simplicity and sealing features. The standard “V” notch options are 30°, 60° & 90°.
The 30° option allows for 30° V-Port finer tapered control throughout the valve rotation and the 60°
& 90° offers a larger Cv in addition to controlled flow.
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15° V PORT
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30°V PORT
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60°V PORT
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| 30° V-Port Ball Cv Curve for Example |
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| SIZE |
BALL
ANGLE |
OPENING DEGREE |
| 0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
| 1/2″ |
30° |
0.0 |
0.0 |
0.0 |
0.3 |
0.6 |
1.0 |
1.6 |
2.2 |
3.1 |
3.6 |
| 60° |
0.0 |
0.0 |
0.1 |
0.4 |
0.8 |
1.6 |
2.7 |
4.7 |
6.7 |
7.9 |
| 90° |
0.0 |
0.0 |
0.2 |
0.6 |
1.0 |
1.8 |
3.5 |
5.4 |
7.1 |
9.1 |
| 3/4″ |
30° |
0.0 |
0.0 |
0.1 |
0.4 |
0.8 |
1.5 |
2.5 |
3.6 |
5.0 |
5.8 |
| 60° |
0.0 |
0.0 |
0.2 |
0.5 |
1.3 |
2.4 |
4.2 |
6.7 |
9.9 |
13.6 |
| 90° |
0.0 |
0.0 |
0.4 |
0.7 |
2.0 |
3.3 |
4.8 |
8.1 |
12.3 |
14.2 |
| 1″ |
30° |
0.0 |
0.0 |
0.3 |
0.9 |
1.8 |
3.1 |
4.9 |
6.9 |
8.5 |
10.1 |
| 60° |
0.0 |
0.0 |
0.4 |
0.9 |
2.1 |
4.1 |
7.0 |
11.3 |
16.8 |
22.3 |
| 90° |
0.0 |
0.0 |
0.4 |
1.8 |
3.8 |
8.4 |
12.5 |
15.7 |
23.1 |
29.1 |
| 1-1/4″ |
30° |
0.0 |
0.0 |
0.1 |
1.0 |
1.6 |
3.1 |
5.4 |
8.2 |
10.8 |
14.3 |
| 60° |
0.0 |
0.0 |
0.6 |
1.6 |
2.4 |
5.3 |
9.2 |
14.9 |
21.9 |
31.5 |
| 90° |
0.0 |
0.0 |
0.8 |
2.4 |
5.7 |
11.1 |
17.5 |
26.2 |
35.1 |
53.7 |
| 1-1/2″ |
30° |
0.0 |
0.0 |
0.5 |
1.4 |
2.9 |
5.7 |
9.3 |
13.0 |
16.0 |
18.6 |
| 60° |
0.0 |
0.0 |
0.8 |
2.6 |
5.6 |
10.8 |
19.0 |
27.8 |
37.8 |
46.2 |
| 90° |
0.0 |
0.1 |
0.9 |
3.4 |
8.7 |
15.4 |
30.9 |
40.5 |
62.1 |
75.5 |
| 2″ |
30° |
0.0 |
0.3 |
1.3 |
3.3 |
6.4 |
11.1 |
16.6 |
24.2 |
32.1 |
39.1 |
| 60° |
0.0 |
0.3 |
1.4 |
4.5 |
9.3 |
17.0 |
29.1 |
48.2 |
77.7 |
104.7 |
| 90° |
0.0 |
0.3 |
2.0 |
6.1 |
12.3 |
23.7 |
39.1 |
66.2 |
101.2 |
138.4 |
| 2-1/2″ |
30° |
0.0 |
0.3 |
1.6 |
5.2 |
11.0 |
18.6 |
29.0 |
40.2 |
50.8 |
59.7 |
| 60° |
0.0 |
0.3 |
1.6 |
6.7 |
15.8 |
28.8 |
49.2 |
76.8 |
116.9 |
147.5 |
| 90° |
0.0 |
0.4 |
1.7 |
8.8 |
22.6 |
40.4 |
72.5 |
106.1 |
168.6 |
220.3 |
| 3″ |
30° |
0.0 |
0.4 |
1.4 |
5.9 |
11.7 |
20.0 |
32.7 |
47.4 |
63.3 |
80.3 |
| 60° |
0.0 |
0.7 |
1.7 |
7.7 |
19.3 |
37.7 |
62.8 |
98.9 |
153.3 |
209.1 |
| 90° |
0.0 |
1.1 |
3.5 |
10.6 |
31.2 |
57.8 |
89.4 |
136.7 |
204.5 |
308.3 |
| 4″ |
30° |
0.0 |
1.4 |
6.2 |
16.4 |
28.5 |
43.8 |
59.6 |
84.3 |
117.9 |
148.1 |
| 60° |
0.0 |
1.7 |
7.9 |
19.7 |
42.9 |
72.3 |
119.7 |
188.4 |
284.3 |
381.4 |
| 90° |
0.0 |
2.0 |
8.3 |
24.6 |
70.7 |
145.5 |
202.4 |
305.0 |
464.7 |
671.5 |
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