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Hoffer Helps Pharmaceutical Giant "WFI" Headache
Ultrapure deionized water Recently a Hoffer customer is commonly
used in the health care industry to manufacture products such
as eye drops, nose spray, and hygiene products. This highly
purified water, sometimes referred to as "WFI" (Water
for Injection), presents many challenges for a flowmeter.
WFI is nonconductive, corrosive in nature and requires a sanitary
style flowmeter. The Hoffer 3A Series meets the requirements
and is used routinely throughout the industry with excellent
results. The sanitary design, 316 stainless steel construction
and wide turndown make the 3A Series an excellent solution
for a WFI application.
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Health care industry regulations require that all flow
measurement and other process devices must be fully
"CIPable", or suitable for "Clean in
Place". This means that the flowmeter must be fully
cleaned when it is flushed with a suitable cleaning
product or steam. The Hoffer 3A series of turbine flowmeters
incorporates a design that is fully cleaned when flushed.
Furthermore, this series of flowmeters is available
with a hard carbon composite sleeve bearing that is
suitable for steam cleaning. Other turbine flowmeter
manufacturers offer sanitary turbine flowmeters with
Rulon (a PTFE compound) sleeve bearings. Rulon's maximum
operating temperature is typically +250°F, which
is not suitable for steam cleaning above 15 psig. The
Hoffer 3A meter supplied with a hard carbon composite
sleeve bearing offers a temperature rating suitable
to +850° F.
Recently a Hoffer customer, an international manufacturer
of health care products who employs 54,000 people, looking
for a solution to a problem came to Hoffer to discuss
a WFI application. The flowmeters currently used in
their WFI process were routinely being replaced. The
cast internal assembly with a Rulon sleeve bearing was
deteriorating after a few (CIP) steam-cleaning cycles.
The down time, replacement cost, and potential contamination
from a deteriorated set of internals required immediate
attention and a quick resolution from their maintenance
personnel. The customer determined that the Hoffer 3A
Series turbine flowmeter was the most accurate and cost
effective solution for the application.
The 3A Series provides flow measurement capability from
.25 to 800 GPM in flowmeter sizes ranging form 1/4"
through 3". The 3A turbine flowmeter provides turndown
range of 10:1 to 40:1 depending on flowmeter size. A
clamp type sanitary process connection is standard and
the meter is fully "CIPable". Construction
consists of 316 stainless steel body and hangers (316L
stainless optional), 17-4 ph stainless steel rotor,
and a carbon composite sleeve bearing.
Hoffer is please to provide 3A sanitary flowmeters for
the health care industry. Perhaps a process in your
plant includes deionized, demineralized, or"WFI"
water? Or it must meet 3A Sanitary requirements? Let
us help. We have been providing turbine flowmeters throughout
the world for almost 30 years.
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