SIKA VTY10K5, Operating Manual

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VTY Installation
Technical changes reserved - 17 -
•
The unit can be installed in both horizontal as well as vertical pipelines. The flow sensor
is only suitable for use in fully filled piping. You must avoid a free outlet.
•
The arrow which is placed on the flow monitor (

) shows the only permitted flow direc-
tion.
•
To achieve the highest possible accuracy, the flow sensor must be used with straight in-
and outlet sections of the respective nominal diameter (DN). The inlet section has to be
at least 10 x DN; the outlet section 5 x DN in order to achieve the specified accuracy.
•
The inlet and outlet sections and the gaskets must have the same or a slightly larger in-
side diameter than the one of the flow sensor in order to achieve the specified accuracy.
Before and behind the stabilization tubes, the line may be contracted or enlarged.
•
The pipeline of the screw connection must have a collar at the con-
nection point. The face of the collar serves as sealing area.
The collar is pressed against the gasket and the flow sensor by the
screw connection.
•
The flow medium to be monitored should preferably contain as few
solid particles as possible.
Present particles must not exceed a diameter of 0.4 mm (VTY10), 0.5 mm (VTY15) or
1.0 mm (VTY20 and VTY25). If necessary, install a screen filter!
IN CASE OF SHORTER IN- AND OUTLET SECTIONS
If the specified lengths of the inlet or outlet sections cannot be maintained in prac-
tice, this has a direct influence on the specified pulse rate and the measuring ac-
curacy of the device.
2.1 Mounting
FLUSH THE PIPE
Before installing the turbine flow sensor, flush the pipe carefully. In this way, you
avoid a blocking of the turbine caused by particles from the pipe installation.
IMPORTANT
Malfunction with fibrous sealants.

During sealing the thread with fibrous sealants, make sure that no residues of
the sealant get into the flow.

Use gaskets of the correct size.