Device Description; Installation - Sika VVX Betriebsanleitung

VVX
2

Device description

The vortex flow sensor of the series VVX from SIKA is a vortex flow measurement device
without any moving parts. It has a low pressure drop and excellent measuring characteristics.
Scope of delivery
 1x VVX according to order data.
 1x Operating manual.
 2x O-rings (only version with thread) per VVX.
Construction
The most important components of the VVX are
 Electronics housing with cover.
 Electrical connection.
 Type plate (laser marking).

Process connection.
 Measuring tube.
3

Installation

IMPORTANT
Mechanical loads, exceeding the measuring range or pressure surges can lead to
damage to the VVX sensor.
 The sensor in the measuring tube may not be subjected to mechanical loads.
 Avoid water hammers during commissioning or normal operation.
IMPORTANT
Bubble formation and cavitation in the medium can cause sensor malfunction and
must be avoided. Cavitation is strongly dependent on the medium, flow rate and
medium temperature. SIKA recommends the following minimum system pres-
sures.
VVX15
1.0 bar
Technical changes reserved
Recommended minimum system pressure
VVX20
1.4 bar
VVX25 VVX32
1.6 bar 2.0 bar
Device description
VVX40
2.2 bar
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