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Butterfly valves, flange
2-way, DN 25...DN 700
Use the selection tool for valve recommendations or click on a valve type to get detailed product information, accessories and suitable actuators.
1. Calculation unit
l/s - bar
l/s - kPa
m3/h - bar
m3/h - kPa
(Flow - Differential pressure)
2. Flow
m3/h
(if flow unknown)
3. Differential pressure
kPa
4. Valve variant
Recommended
Conditionally recommended
Wafer Type
kvmax[m
3
/h]
DN [mm]
2-way
50
25
D625N
55
32
D632N
65
40
D640N
100
50
D650N
170
65
D665N
260
80
D680N
520
100
D6100N
880
125
D6125N
1400
150
D6150N
2200
200
D6200W
4200
250
D6250W
5700
300
D6300W
10300
350
D6350N
14200
400
D6400N
18800
450
D6450N
24100
500
D6500N
37300
600
D6600N
42800
700
D6700N
Lug Type
kvmax[m
3
/h]
DN [mm]
2-way
50
25
D625NL
55
32
D632NL
65
40
D640NL
100
50
D650NL
170
65
D665NL
260
80
D680NL
520
100
D6100NL
880
125
D6125NL
1400
150
D6150NL
2200
200
D6200WL
4200
250
D6250WL
5700
300
D6300WL
10300
350
D6350NL
14200
400
D6400NL
18800
450
D6450NL
24100
500
D6500NL
37300
600
D6600NL
42800
700
D6700NL
Download SelectPro valve design program
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