Installation, Operation and Maintenance Manual
MAN-02-05-62-0742-EN Rev. 0
December 2019
Adjusting the Valve Disc
5.1.2
Adjustment of Butterfly Valve “a” - measurement (mm)
Table 3.
ø
The working pressure (also named system pressure, water pressure or
differential pressure (Dp) over the disc) - see valve list (if the working
pressure is not known – the setting for 0 - 6 bar is used)
(mm)
over 0 – 6 bar
over 6 - 10 bar
over 10 - 16 bar
WORLD-VALVE
0 – 16 bar
50
3
2
1
2
65
3
2
1
2
80
4
3
1
2
100
5
3
2
2
125
7
4
2
4
150
8
5
3
4
175
9
6
3
4
200
10
7
3
4
250
13
9
4
5
300
16
10
5
5
350
18
12
6
5
400
21
14
7
5
450
24
16
8
8
500
26
17
9
8
600
31
21
10
8
700
37
24
12
10
800
42
28
14
10
1000
52
35
17
10
α
= 3°
(tan
α
= 0,052)
α
= 2°
(tan
α
= 0,035)
α
= 1°
(tan
α
= 0,017)
18
Section 5: Adjusting the Valve Disc
