Unique valve head, Transmount, Mass transmount – Veris Verabar Brochure User Manual
Page 3: Field flow systems, The proof of verabar accuracy, Partial insert, Spring-lock… offers a superior mounting method

Unique Valve Head
Verabar offers a new concept…
built-in valves in the head of the
instrument.
This superior design:
•
Simplifies installation and
maintenance.
•
Lowers the
connecting
hardware
cost by
reducing the
number of
fittings.
Transmount
A Transmount flow system
is the first choice for all
liquids; and for gas and
steam applications, with
slight variations in pressure
and temperature.
Mass
Transmount
A Mass Transmount flow
system should be selected on
steam and gas applications
with variable temperature
and pressure.
Field Flow
Systems
Ready to install, the
Verabar can be ordered
with a manifold, transmitter
or local indicating
meter.
The Proof of Verabar Accuracy
Accurate Flow Coefficients
The true test of a flow measurement device is its ability
to repeat its published flow coefficient within its accuracy
band.
Verabar
has been
thoroughly
tested at
independent
flow laboratories
(all sensor sizes, in
multiple pipe sizes,
in gas and liquids).
Spring-Lock
Complete
Installation
in Less than
an Hour
Partial Insert
•
Designed specifically for
high velocity cooling water
applications, large diameter
pipes, large vertical stacks
and buried water lines
•
Extends 1/3 into pipe to
reduce procurement
and installation
costs — specifically
useful when a
hot tap is required
•
Partial Insert hot
tap sensors can be
inserted/retracted with
no reduction in flow rate
Spring-Lock…
Offers a Superior Mounting
Method
This advanced, patented design ensures
the sensor remains sealed, locked and
pre-loaded to the opposite wall regardless
of changes in pipe diameter due to pres-
sure, temperature or mechanical force.
This design has important advantages:
•
Fugitive emission and leak prevention…
The Spring-Lock continually compen-
sates for the differential in packing and
body growth rates due to increased
temperature.
•
Increases sensor strength,
thereby eliminating the
need for an opposite wall
support. A locked, pre-
loaded sensor is four
times stronger than
a non-preloaded,
cantilevered sensor.
•
Other mounting methods
do not pre-load the sensor
or the packing seal and are subject to
increased sensor vibration, metal fatigue,
breakage and leakage.
0.74
.073
0.72
0.71
K 0.70
0.69
0.68
0.67
0.66
0
5
10
15
20
25
Velocity (fps)
Test Location: Utah water Research Laboratory
Test Data: November 13, 1991
Fluid: Water at 60 deg F
Meter Size: 6 inch, Schd 40, -10
Serial No: V1000.05.1
±1.0%
Visual load
indicator
Spring
travel
Compensates for
changes in pipe
diameter
Actual Flow Test