Series

 VHS06 / VK306

• Universal flow switches for DN 20...200

• Adjustable for pipe size and setpoint by trimming the paddle 

• Threaded adapters for tees or for direct insertion into pipes

 Technical data

 VHS06

 VK306

 Switching function

 Contact 

 → closes at increasing flow

 → opens at decreasing flow 

 Reversing possible

 Contact 

 → closes at increasing flow 

 → opens at decreasing flow

 Pressure rating

 PN 25

 PN 10

 Temperature ranges

 Medium

 -25...110 °C

 -25...100 °C

 Ambient

 -25...80 °C

 -25...70 °C

 Electrical data

 Electrical connection

 Plug connector DIN EN 175301-803-A incl. cable socket

 1.5 m PVC jacket cable

 Max. Switching current

 1 A

 Max. Switching voltage

 230 VAC, 48 VDC

 Max. Rating

 26 VA, 20 W

 Degree of protection EN 60529

 IP65

 Protection class EN 60730-1

 Class II

 Approvals*

 WRAS

 TUV

 Options

 For type

 See order code

 VHS06

 → Plug connector DIN EN 175301-803-A incl.cable socket with two LED 

      for switching voltages 24 V...230 V AC/DC ±20 %, ambient temperature -20...70 °C

 → or 4-pin-sensor plug M12 x 1

 For type

 On request

 VK306

 → Reversed switching function

 VK306 with plastic paddle

 → Recognized component ETL according to UL & CSA standards

 VHS06 / VK306 with plastic paddle, installation into pipe tees according to EN 10242

 Paddle to be trimmed to

 Paddle mark

 9

 15

 20

 30

 40

 Installation length L1 [mm]

 40

 46

 51

 61

 71

 Setpoints* / Max. flow rate [m³/h]

 DN 20

 Increasing flow ON**

 1.1

 0.9

 4

 Decreasing flow OFF

 Max. flow rate

 DN 25

 Increasing flow ON**

 1.7

 1.5

 8.5

 1.3

 1.1

 5

 Decreasing flow OFF

 Max. flow rate

 DN 32

 Increasing flow ON**

 2.9

 2.6

 15

 2.2

 1.9

 10

 1.9

 1.6

 8

 Decreasing flow OFF

 Max. flow rate

 DN 40

 Increasing flow ON**

 4.2

 3.8

 25

 3.2

 2.8

 18

 2.8

 2.4

 14

 2.1

 1.8

 10

 Decreasing flow OFF

 Max. flow rate

 DN 50

 Increasing flow ON**

 6.5

 6

 41

 4.9

 4.5

 29

 4.4

 4

 24

 3.3

 3

 17

 2.7

 2.4

 13

 Decreasing flow OFF

 Max. flow rate

 VHS06 / VK306 with plastic paddle, installation by welded socket according to EN 10241, G½ female, length 15 mm

 Paddle to be trimmed to

 Paddle mark

 15

 20

 30

 40

 50

 60

 70

 80

 Installation length L1 [mm]

 46

 51

 61

 71

 81

 91

 101

 111

 Setpoints* / Max. flow rate [m³/h]

 DN 65

 Increasing flow ON**

 8.8

 8.5

 50

 7.4

 7

 45

 5.6

 5.2

 34 

 4.5

 4.2

 27 

 Decreasing flow OFF

 Max. flow rate

 DN 80

 Increasing flow ON**

 13.8

 11.3

 80

 11.7

 9.6

 65 

 9.2

 7.7

 50 

 7.5

 6.3

 40 

 6.5

 5.3

 33 

 5.1 

 4.7

 28

 Decreasing flow OFF

 Max. flow rate

 DN 100

 Increasing flow ON**

 18.8

 16.3

 110

 14.6

 12

 80 

 12.3

 10

 65  

 10.2

 8

 55 

 8

 7.1

 50 

 6.9

 6.3

 40 

 6.2

 5.9

 36 

 Decreasing flow OFF

 Max. flow rate

 DN 150

 Increasing flow ON**

 27

 25

 150

 22.8

 19.8

 130

 19.5

 17..8

 110 

 18

 16

 100 

 15.7

 14.3

 90 

 Decreasing flow OFF

 Max. flow rate

 DN 200

 Increasing flow ON**

 45

 43.5

 230 

 38

 36

 200 

 33.5

 32

 175 

 30

 29

 160 

 Decreasing flow OFF

 Max. flow rate

 VHS06 / VK306 with stainless steel paddle, installation into pipe tees according to EN 10242

 Paddle to be trimmed to

 Paddle mark

 15

 20

 30

 40

 Installation length L1 [mm]

 46

 51

 61

 71

 Setpoints* / Max. flow rate [m³/h]

 DN 25

 Increasing flow ON**

 1.2

 1

 10

 1

 0.9

 6 

 Decreasing flow OFF

 Max. flow rate

 DN 32

 Increasing flow ON**

 2

 1.7

 20

 1.7

 1.5

 15 

 Decreasing flow OFF

 Max. flow rate

 DN 40

 Increasing flow ON**

 3.3

 3

 34

 2.7

 2.5

 26 

 2

 1.8

 18 

 Decreasing flow OFF

 Max. flow rate

 DN 50

 Increasing flow ON**

 4.8

 4.6

 55

 4

 3.8

 45 

 3.2

 2.9

 32 

 2.6

 2.4

 24 

 Decreasing flow OFF

 Max. flow rate

 VHS06 / VK306 with stainless steel paddle, installation by welded socket according to EN 10241, G½ female, length 15 mm

 Paddle to be trimmed to

 Paddle mark

 15

 20

 30

 40

 50

 60

 70

 80

 Installation length L1 [mm]

 46

 51

 61

 71

 81

 91

 101

 111

 Setpoints* / Max. flow rate [m³/h]

 DN 65

 Increasing flow ON**

 7.2

 6.8

 100

 6.0

 5.7

 80

 4.5

 4.2

 65

 3.6

 3.3

 50 

 Decreasing flow OFF

 Max. flow rate

 DN 80

 Increasing flow ON**

 11.7

 11.4

 150

 10

 9.6

 125 

 7.7

 7.5

 95 

 6.4

 6

 75 

 5.3

 4.9

 60 

 4.6

 4.2

 50 

 Decreasing flow OFF

 Max. flow rate

 DN 100

 Increasing flow ON**

 16

 15.9

 200

 12.4

 11.9

 150 

 10.3

 9.8

 120 

 8.7

 8.1

 105 

 7.7

 7.1

 90 

 6.7

 6.3

 75 

 6.1

 5.6

 70 

 Decreasing flow OFF

 Max. flow rate

 DN 150

 Increasing flow ON**

 24

 22.7

 290

 20.3

 19

 250 

 18

 17.3

 210 

 16.3

 15.3

 190 

 14.7

 13.8

 170 

 Decreasing flow OFF

 Max. flow rate

 DN 200

 Increasing flow ON**

 41

 38.7

 450

 35.7

 34

 390 

 31.7

 29.7

 350 

 26.7

 23.3 

 310

 Decreasing flow OFF 

 Max. flow rate