9 Approvals
Flow switch
8.3 Maximum flow rate of the flow switch*
Flow switch with pipe section
The maximum specifications relate to water as the medium and a continuous flow rate.
Brass/Stainless steel pipe section
PVC pipe section
VH...
VK...
VK...
Nominal width
Max. flow rate [l/min]
Max. flow rate [l/min]
DN 8
45
14
--
DN 10
60
20
--
DN 15
67
30
50
DN 15 (external thread)
60
20
--
DN 20
180
80
100
DN 25
195
130
100
DN 32
240
180
150
DN 40
400
300
200 (260)**
DN 50
400
350
260 (350)**
** The values in brackets apply to shortened paddles
Flow switch for direct installation
Series VH... / VK…
VH…
VK…
Nominal
width
Max flow rate [m³/h]
Max flow rate [m³/h]
DN 50
30
25
DN 80
80
65
DN 100
150
100
V…05M...
(mounting length 51 mm)
DN 150
200
170
DN 100
100
40
DN 150
150
95
V…06M...
(mounting length 111 mm)
DN 200
200
160
DN 50
30
--
DN 80
100
--
DN 100
150
--
V..01M... with soldered/welded
nipple
(mounting length 24 mm)
DN 150
200
--
* The max. permissible flow rate can deviate from the specified limit values for customised versions.
9 Approvals
The flow switches have been type-tested by TÜV Rheinland, mark of conformity R 9611016 dated
28.08.1996 (not valid for version with sensor plug M12x1 and for VH...X).
Reference no. 0507081, section “Switches - Flow Control – 1718“
Page 15 of 15
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