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Meeting Challenges of Low Flow Measurement The Coatings Industry
Hoffer Flow Controls turbine flowmeters and electronics play
an integral part in many commercial processes, where there
is a need for measurement of a clean liquid or gas. Many unique
applications use Hoffer turbine flowmeters to improve the
way a process works resulting in improved performance and
savings for the company. Unique applications and customization
are areas in which Hoffer Flow Controls excels.
The Winter 2002 Inline features the Hoffer MF Series of Mini-flowmeters
employed to monitor fuel flow in high velocity spray coating
applications. These applications call for measurement of a
liquid fuel at a very low flow rate.
The Hoffer Mini-flowmeters precisely monitor the fuel for
a leading worldwide supplier of coating services and thermal
spray powders. Specific amounts of fuel are combined with
flammable industrial gases in the combustion chamber of a
nozzle that in-turn creates a supersonic spraying velocity.
High accuracy of fuel flow measurement is critical in controlling
the exact blend of fuel and gases to produce the required
velocity of these combustible materials. This high velocity
is used to spray the coatings which actually penetrate the
surface. The coating, when applied to the surface, exhibits
extremely high density and corrosion-resistance to wear thus
extending the life of the product.
Referred to as flame sprayers, these guns are designed to
apply a variety of powdered materials/abradable coatings to
a wide scope of applications in industries such as aircraft,
computer, optical, plastics, primary metals and textiles.
Above a flame spray gun, part of a system
used to applycoatings to a variety of products
which enhance the products resistance to wear.
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In this particular application the repeatable flow range
is specified at .02 to .15 GPM. In addition to the Mini-flowmeter,
an intelligent transmitter is used to provide linearization.
The transmitter also provides features such as a Windows®
based configuration program, a 4-20 mA loop powered
analog output and an FM intrinsically safe approval
which is a requirement for this application.
The MF Series meters meet the needs for extremely low
flow measurement in many industrial liquid and gas applications.
Linear flow range capabilities are 0.015 to 3.00 gallons
per minute in liquid applications. Maximum flow rates
in gas flow applications are 0.05 to 1.00 ACFM.
Once again, meeting the challenges and finding solutions
for various industrial low flow processing applications
around the world is what brings customers back to Hoffer
Flow Controls, again and again. Our reputation for producing
the highest quality turbine flowmeters in the world
can be seen through the many quality awards received
and product innovations introduced through the years.
Like the coatings application above, our Mini-Flowmeters
can be found in blending and batching applications throughout
the soft drink, pharmaceutical, rolled steel, food,
aerospace and chemical industries. |
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