Technical data

 Switching function

 Contact 

 → closes at increasing flow 

 → opens at decreasing flow 

 Reversing possible

 Pressure rating

 PN 10

 Temperature ranges

 Medium

 0...20 °C (PN 10) 

 0...60 °C (PN 2.5)

 Ambient

 0...60 °C

 Electrical data

 Electrical connection

 → VKS 

 → VK3

 Plug connector DIN EN 175301- 

 803-A incl. cable socket 

 1.5 m PVC jacket cable

 Switching current

 Max. 1 A

 Switching voltage

 Max. 230 VAC, 48 VDC

 Rating

 Max. 26 VA, 20 W

 Degree of protection EN 60529

 IP65

 Protection class EN 60730-1

 Class II

 Approvals

 TUV

 Options

 For type

 See oder code

 VKS

 → Plug connector DIN EN 175301-803-A

      incl.cable socket with two LED 

      for switching voltages

      24 V...230 V AC/DC ±20 %,

 → or 4-pin-sensor plug M12 x 1

 For type

 On request

 VKS / VK3

 → Special setpoints 

 → 4 different colours of the union nut for distinction

 VK3

 → Recognized component ETL according to UL & CSA standards

 Nominal diameter

 Setpoint ranges [l/min]*

 Max. flow rate [l/min]

 Increasing flow ON

 Decreasing flow OFF

 DN 15

 5.1...6.9

 4.9...6.5

 50

 DN 20

 9.4...12.3

 9.1...11.9

 100

 DN 25

 10.7...15.2

 10.4...14.8

 100

 DN 32

 17.0...22.6

 16.8...22.5

 150

 DN 40

 21.8...30.1 (29.6...41.4)**

 21.6...29.9 (29.4...40.8)**

 200 (260)*

 DN 50

 29.0...40.0 (37.6...50.0)**

 28.6...39.9 (37.4...49.8)**

 260 (350)**