● Required straight pipe lengths and recommendations (3)
Description
Figure
● Thermal insulation of integral
flowmeter and remote sensor
When applying thermal insulation to a pipe
carrying high-temperature fluid, do not wrap the
insulating material around the bracket (VY015 to
VY100) or the nozzle (VY150 to VY400).
Nozzle
Thermal insulation material
[VY015 to VY100]
Vortex Flowmeter
Bracket
Vortex Flowmeter
[VY150 to VY400]
Thermal insulation material
● Flushing (cleaning) the pipe
If there is a possibility of scaling or sludge
(boiling scale, mud) inside newly installed or
repaired piping, flush the piping before operation.
When performing flushing, use bypass piping
to avoid damaging the flowmeter. If there is no
bypass piping, install a short pipe in place of the
flowmeter when performing flushing.
Short pipe
Vortex Flowmeter
■ Mounting Precautions
Be sure to observe the following items so that
the performance of the vortex flowmeter is fully
demonstrated.
(1) Gas or Steam Measuring Precautions
Ensure that accurate measurement can be
performed with the piping line filled with the fluid
that flows through.
● Piping to Prevent Liquid Traps
Mount the vortex flowmeter in a vertical pipeline
to avoid liquid traps. When the vortex flowmeter is
installed horizontally, raise the part of the piping line
in which the vortex flowmeter is installed.
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(2) Liquid Measurement Precautions
The flowrate cannot be measured accurately if
the piping line is not filled with fluid. When piping,
observe the following precautions.
● Maintaining a Filled Pipe State
Make the fluid flow against gravity upwards from
below. When the fluid is flowing with gravity, lift
the down-stream pipe length above the vortex
flowmeter installation level to maintain a filled pipe
state at all times.
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h h>0
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<3. Installation>
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IM 01F07A01-01EN
