Know-how makes the difference
7
B-3500-UK-06-2013-REV. A
Single Acting, Normally Closed, Enter Below Seat
Open
Closed
Size Thread end Orifice
Kv
(m3/h)
Actuator
(mm)
ΔP
(Bar)
Control Pressure
(Barv)
DN10
3/8”
13
3.8
40
0 - 11
3.0
50
0 - 14
3.0
DN15
1/2”
13
4.7
40
0 - 11
3.0
50
0 - 14
3.0
DN20
3/4”
18
9.5
50
0 - 11
3.0
DN25
1”
24
18.1
50
0 - 4
3.0
63
0 - 14
4.5
90
0 -16
5.0
DN32
1 1/4”
31
23.1
63
0 - 6
4.5
90
0 - 16
5.0
DN40
1 1/2”
35
32.9
63
0 - 5
4.5
90
0 - 16
5.0
DN50
2”
45
52.8
90
0 - 10
5.0
DN65
2 1/2”
61
82.6
90
0 - 7
5.0
Suitable for condensable media, such as air, steam and low pressure liquid media.
DN15
DN15
8
6
4
2
12 11
16
8
4
4
8
16
12 14
2
4
6
8
50
Bar
0
0
40
DN10
DN10
Control
pressure
Fluid
pressure
Single Acting,
Normally Closed, Enter Below Seat
Bar
Bar
DN20
4
8
16
12 11
2
4
6
8
50
0
4
8
16
12
2
4
6
8
50
0
DN25
DN40
8
6
4
2
12
16
8
4 5
Bar
0
63
Control
pressure
Fluid
pressure
8
6
4
2
12
16
8
4 6
0
DN32
63
8
6
4
2
12 14 16
8
4
0
DN25
63
Bar
90
0
4
8 7
16
12
2
4
6
8
DN65
Control
pressure
Fluid
pressure
Bar
90
0
4
8 10
16
12
2
4
6
8
DN50
DN25
90
DN32
0
4
8
16
12
2
4
6
8
DN40
Values mentioned in the chart are minimum ratings for the control pressure at a given differential pressure - values
at or above these ratings will make the valve close if NO - or open if NC types.
