KraL Volumeter®. Flowmeter Overview. - KRAL

KRAL Volumeter ®.
Flowmeter Overview.
KraL Volumeter® – Robust and Precise
KRAL Volumeter®.
Decide for the
original.
Our flowmeters combine
the otherwise mutually
exclusive properties of
robustness and precision.
For over 20 years, our pro­
ducts have satisfied a
wide range of customer
requirements. These qual­
ities provide extra security
in the decision making
process.
Liquids and areas of
application.
KRAL Volumeter meas­
ures the flow of liquids.
KRAL is the first choice
when it comes to meas­
uring anything from
low-viscosity liquids like
petrol, acids and alkalis
to high-viscosity liquids
such as printing inks and
bitumen. Our measur­
ing equipment is found
in many industrial areas
such as:
Marine.
Energy.
Fuel engineering.
H ydraulics.
Test stands.
Mixing and batching
technology.
Chemical industry.
Food industry.
Checklist.
Use this brochure to answer the following questions:
Suitability for the purpose of the application.
Suitability to the operating conditions.
the equipment able
Is
to measure the liquid
used?
an the meter meas­
C
ure the required flow
range?
oes the equipment
D
function without affect­
ing the liquid?
as the equipment
H
been tested and proven
for this application?
W ill the flow be meas­
ured with sufficient
accuracy?
Is the measured value
stable over time and
repeatable?
Is the equipment suit­
able for the tempera­
ture of the liquid?
Can the equipment
withstand the system
pressure?
oes the equipment
D
operate with low noise,
vibration or pulsation?
Is the space where
the equipment is to
be installed limited?
Can the equipment be
quickly installed using
standard connections?
Measurement accuracy.
The measuring principle.
The precision of the meas­
urement is unmatched:
The KRAL Volumeter is
accurate to ± 0.1% of
rate over a wide flow and
­viscosity range. The
repeatability is better than
± 0.01%. The long
­working life and stability
over time show that
robustness and precision
are not mutually exclusive.
The KRAL Volumeter is a
very compact positivedisplacement meter. The
measurement chamber
consists of the casing
and two screw spindles.
The spindles continously
divide the liquid in a
precision made closed
meas­uring-chamber –
nothing escapes. The pre­
cisely measured value is
calcul­ated from the known
meas­­uring-chambervolume and the spindle
rotation speed.
Silent operation.
Other flowmeter technol­
ogies can produce noise
levels as high as 100 dBA,
requiring ear protection
for operating personnel.
In comparison the KRAL
Volumeter is barely audi­
ble.
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Influence on the meas­
ured liquid and system.
Understandable meas­
uring technology.
The measurement values
are calculated under­
standably and accurately.
The liquid flow drives the
spindles. Pole wheels
generate impulses in the
sensor. Each pulse from
the sensor represents a
precisely calibrated vol­
ume.
The solution.
KRAL Volumeter –
gentle, understandable
measurement technology.
The liquid to be measured
flows straight into the
KRAL Volumeter. No flow
conditioning or straight
piping is necessary
upstream or downstream
of the meter. Elbows and
T-pieces can be installed
without influencing the
measurement accuracy.
The liquid drives the spin­
dles. The spindles rotate
and the liquid stream
does not change direc­
tion. The measuring
equipment exerts low
force on the liquid.
A sensor registers each
pole of the wheel.
Each impulse is transmit­
ted as an interferenceproof standard industrial
square - wave to the KRAL
electronic unit.
KRAL Volumeter is a
displacement meter.
Together the casing and
spindles form a precisely
measured volume.
By increasing the number
of poles on the wheel,
the resolution of the
­measurement is
increased.
2
3
KRAL Volumeter®.
Precision without deviation.
KRAL Electronic
BEM 300 and BEM 500.
Output signals.
Display of current and
total flowrate as well as
consumption. Designed
by KRAL to support the
Volumeter and the various
applications. Plenty of
mounting options.
The sensor offers the most
common industry standard
signals:
PNP square-wave signal.
Namur signal.
KRAL Industrial PC
BEM 900.
Suitable for complex
applications utilizing up to
16 KRAL Volumeter.
Designed for monitoring
and data analysis.
The customer can process the signal using
­existing control room
instrumentation.
Mechanical connections designed
for quick and easy installation.
Custom connections are
also possible.
Pipe thread G
Pipe thread NPT
SAE - flanges
ANSI - flanges
DIN - flanges
JIS - flanges
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KRAL Volumeter® – Flowmeter Overview.
Technical data.
OME*
Classification
Flow range
(gpm)
Max. pressure
(psi)
Temperature
range (°F)
Economy
0.03 to 135
600
- 4 to 257
Casing
material
Anodized
aluminium
OMG*
Universal
0.03 to 2,000
3,600
- 4 to 400
EN-GJS-400 OMH*
High pressure
0.03 to 790
6,000
- 4 to 400
EN-GJS-400 OMK*
Chemically
resistant
0.05 to 40
600
- 4 to 210
Chrome nickel
steel
OMX
Custom
design
0.03 to 2,000
9,100
- 40 to 400
Custom
design
OMA
Accessory for
DKC/DMC
pump stations
0.07 to 40
600
-4 to 257
EN-GJS-400 * Product brochures available upon request.
5
Edition 02/ 11. All rights reserved. Subject to change.
KRAL-USA, Inc., P.O. Box 2990, Matthews NC 28106, 901A Matthews -Mint Hill Road, Matthews NC 28105, USA
Tel.: (704) 814 - 6164, Fax: (704) 814 - 6165, www.kral-usa.com, e-mail: [email protected]