Flow switch installation
VKX / VKL
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© SIKA • Ea6300_VKX_VKL • 08/2020
3 Flow switch installation
CAUTION! High temperature!
The exposed surfaces of the device may be hot during operation.
Never touch the flow switch when it contains a hot medium.
Ensure the flow switch or the pipe to which it is connected is fitted with a high temper-
ature warning sign if it is used with a hot medium.
General installation instructions
Choose a mounting position, where the limits are met (
Avoid external magnetic fields near the flow switch, since they might im-
pair the function mode of the flow switch.
Avoid mounting the flow switch in the vicinity of large ferromagnetic
parts, as they cause magnetic influence on the flow switch, which en-
dangers the operational safety.
Keep a settling section of at least 5 x DN before and after the flow switch.
Clean the pipe before mounting. Remove magnetic particles such as
welding residues.
Do not use greases, oils, etc. during mounting.
Take into account that the nominal mounting position of the flow switch-
es within a horizontal pipe is “upright”.
Only mount the flow switch in an upright position and take into account
the deviation of a maximal 45°. Please contact SIKA, when the mount-
ing position differs.
Take into account that the arrow on the flow switch points into the flow
direction and runs parallel to the pipe axis.
Tighten the plastic union nut with 7…8 Nm.
Flow switches for direct installation
During flow switch installation, ensure that
the paddle does not touch the wall of the
pipe
and can move freely
Ensure that the paddle rod does not bear
against the inside of the dome
.
Before you solder the soldering adapter of
the flow switch, remove the flow switch and
the O-ring.
