Page 1 - Fulflo Probond economical and environmental filtration solutions for high viscosity fluid processing

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®
Fulﬂ o ProBond ™

Economical & Environmental
Filtration Solutions for High Viscosity

Fluid Processing

White Paper

by Ron Fall, Senior Prinicipal Engineer

Background Challenge

The ﬁ ltration of high viscosity ﬂ uids Typical to processing of viscous ﬂ uids, this manufacturer was experiencing an
is often considered one of the most upset condition that resulted in the formation of gels within the ﬁ nished bulk
difﬁ cult applications within ﬂ uid materials. Such gel formations cause bridging at nozzle openings and result in an
processing operations. In some cases, inconsistent bead of sealant when applied. Plugging at the nozzle also results in
a ﬂ uid with the characteristics of 10 waste and additional downtime required for premature cleaning or replacement.
weight oil is considered very viscous, Subsequently, the sealant manufacturer was required to store waste material
but in other instances, ﬂ uids that have in drums until time of disposal, which would cost $400 per drum. In an attempt
the consistency of cold molasses are to reduce these costs, the manufacturer evaluated other processing methods to
considered to be problematic. In reality, remove the gels from the material. This included a disc type self-cleaning ﬁ lter
these two ﬂ uid types are drastically purportedly designed for gel removal, as well as utilization of various screen type
different by an order of several surface media. Both alternative processing methods were unable to meet the
thousand centipoise (cP). quality requirements.

This case study illustrates how Parker Parker Solution
™
®
domnick hunter’s Fulﬂ o ProBond
In evaluating this viscous ﬁ ltration application, the
phenolic resin bonded depth cartridge
characteristics of the material and debris to be
helped a silicone sealant manufacturer
removed were investigated; this step is critical to the
ﬁ nd a method to re-process the
media technology selection process. The ﬁ ndings
product in order to meet quality
revealed that the sealant standing viscosity was two
standards and resolve issues with
million centipoise and thixotropic (shear thinning) in
formation of gels resulting in reduced
nature. That is, as the sealant began moving within
waste and less production downtime.
the pump and piping during processing, it would shear
thin to approximately 125,000 cP. The “soft” gels
Contact Information would extrude through surface type ﬁ ltration media once differential pressures
approached 22 pounds per square inch (psi). Given the vast gel size distribution
within this material, a tight screen with little open area would be required.
Parker-Hannifi n Corporation
Additionally, a clean differential pressure of 50 psid would be necessary to initiate
domnick hunter
the ﬂ ow through the tight ﬁ ltration media. This minimum pressure requirement
Process Filtration - North America
indicated that surface type media technology was not viable and that a depth type
2340 Eastman Avenue
ﬁ ltration alternative would be necessary.
Oxnard, CA, USA 93030
toll free +1 877 784 2234 To address the processing and quality concerns of the sealant manufacturer,
phone +1 805 604 3400 Parker domnick hunter Process Filtration ﬁ eld representatives recommended
™
®
fax +1 805 604 3401 Fulﬂ o ProBond phenolic resin bonded depth cartridges. This ﬁ lter was
dhpsales.na@parker.com designed speciﬁ cally for gel removal in applications requiring high differential
pressures. In fact, the pilot testing and subsequent full scale implementation,
www.parker.com/dhprocessipc
demonstrated that the ProBond™ cartridge effectively removed the unwanted
gels. As a result, the previously unusable sealant now met manufacturer’s
speciﬁ cation requirements and quality standards.

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