In Case Of Shorter In- And Outlet Sections - Sika VTY-Serie Betriebsanleitung

VTY
The unit can be installed in both horizontal as well as vertical pipelines. The flow sensor
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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-
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tion.
To achieve the highest possible accuracy, the flow sensor must be used with straight in-
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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-
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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-
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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
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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.
Technical changes reserved
Installation
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