VKX / VKL
Type of Contact
Technical changes reserved
- 19 -
Flow switches with pipe section
Install pipe section of the flow switch into the pipe like any other valve.
Sealing the brass pipe sections must be done by sealing the thread (Teflon tape, surface
coatings etc.) or by sealing rings at the faces of the tube.
Flow switches optionally equipped with a copper tube section have to be soldered to the
pipe. The flow switch (body with paddle system) and the o-ring have to be disassembled
from the tube section when soldering to prevent overheating.
4 Type of Contact
WARNING! No safety component!
The flow switches are no safety components in accordance with Directive 2006/42/EC
(Machine Directive).
Never use the flow switch as a safety component.
The switch unit which is integrated in the body, provides a normally open contact (make con-
tact).
The following table explains the normally open contact:
5 Switch points
•
The flow switch is factory set on a fixed flow set point.
•
An adjustment of the flow set point by user is not possible.
Type of contact
Flow rate
Electric contact
Normally open contact
( make contact )
increasing
closing
decreasing
opening
