2-3
IM 01F06A00-01E
2. INSTALLATION
Description
Figure
Heat-Insulation:
When an integral-type flowmeter or a remote type detector is
installed and the pipe carrying higt-temperature fluids is
heat-insulated, do not wrap adiabatic materials around the
installation bracket of the converter.
• Refer to “2.5 Cryogenic and High Process Temperature
Version Insulation” and install it rightly.
Flushing of the pipe line:
Flush and clean scale, incrustation and sludge on the inside of
pipe for newly installed pipe line and repaired pipe line before
the operation. For flushing, the flow should flow through
bypass-piping to avoid damaging the flowmeter. If there is no
bypass-piping, install short pipe instead of the flowmeter.
Mounting Gasket:
Avoid mounting gaskets which protrude into the pipe line. This
may cause inaccurate readings.
Use the gaskets with bolt holes, even if digitalYEWFLO is the
wafer type.
When using a spiral gasket(without bolt holes), confirm the size
with the gasket -manufacturer, as standard items may not be
used for certain flange ratings.
Pressure and Temperature Taps:
Pressure tap outlet: install this tap between 2D and 7D on the
downstream side of a flowmeter.
Temperature tap outlet: install this on the downstream side 1D
to 2D away from a pressure tap.
Valve positon (T-type piping exist):
When pulsation causes by a T-type piping exist, install the valve
on the upstream of the flowmeter.
Example:As shown in the figure, when the valve V1 is turned
off, the fluid flow throught B as to meter A the flow is zero. But
due to the pulsating pressure is detected, the meter is zero
point become fluctuating. To avoid this, change the valve V1
location to V1'.
• In case of the Reduced Bore type, moisture may be remained
upstream of the flowmeter. Drain it appropriately.
F020102-2.EPS
Relocating
Valve (Off)
Flow
B
A
V1’
V1
digitalYEWFLO
digitalYEWFLO
digitalYEWFLO
digitalYEWFLO
digitalYEWFLO
Pressure tap
Temperature tap
Upstream
Flow
downstream
2 to 7D
1 to 2D
Pipeline Flange
Pipeline
Bracket
Heat-Insulator
No good
Short pipe
