3M POLYKLEAN Specifications

a 3M company
®
®
PolyKLEAN
All-Polypropylene Rigid Thermal Bonded Filters
Featuring:
Consistentfiltration throughout the life of the filter for superior quality effluent
Up to ten or more times the service life of competitivefilters
Lowoperatingpressure drop achievesthe required flowusing fewerfilterelements
Applications Include:
Industrial Processes Coatings Food&Beverages Oil & GasProcessFluids Chemicals Electronics Pharmaceuticals
PolyKLEAN®Filter Cartridges
Advancing depth filtration through technological innovation
PolyKLEAN filters, manufactured using CUNO's rigid extrusion bonded technology, are all-polypropylene depth filter cartridges offering premium features including:
consistent particle removal efficiencies throughout the filter's life,
6
increased surface area for extended filter life,
6
low initial pressure drop for enhanced flow, and
6
high particle removal efficiencies at high flow rates (flux).
6
The filter's extended service life results in fewer filter change-outs while its enhanced flow characteristics can typically reduce the number of filters required to achieve a given flow rate. These combined features of PolyKLEAN filters can
.
PolyKLEAN Filter Construction
The unique PolyKLEAN filter manufacturing process combines the superior process control with the quality assurance enabled by an ISO 9001 certified quality system to provide consistent product performance. The CUNO exclusive manufacturing process provides a high degree of fiber-to-fiber thermal bonding, without the use of binders, to produce a rigid, core-less, filter structure with the following properties:
FLOW
GROOVED
SURFACE
INCREASE IN
SURFACE AREA
does not unload contaminants with increasing differential pressure like
6
typical meltblown filters, allows grooves to be machined into the upstream surface, without
6
tearing or melting the filter structure, providing more than double the effective surface area, and
6
exhibits exceptionally low differential pressure for a given filter rating.
Consistent filtration throughout the service life of a depth-style filter depends on how well the filter’s structure tolerates fluctuations in operating conditions - including contaminant loading and differential pressure. Flexible structures, such as those found in typical meltblown and string-wound filters, tend to compress and change porosity with increased pressure, while rigid structures do not (Photo 1). Media compression can result in short filter life because the pores collapse and ultimately close.
Feature Benefit
6
Eliminates unloading at high differential pressure
6
6
Rigid depth filter construction
6
Enhanced contaminant holding capacity
6
Grooved cartridge with extended surface area
6
All polypropylene construction
6
Materials of construction listed in FDA 21CFR and ANSI / NSF Standard 42 and 61 certified
6
Core-less filter structure
6
Continuous integral length filter element (up to 40")
Efficient removal of deformable materials
6
Consistently superior particle removal throughout filter life and at high flow rates (flux).
6
Fewer filter change outs
6
Long filter life
6
Promotes fuller utilization of the depth-matrix
6
Long filter life
6
Compatibility in a wide range of applications and operating conditions
6
No adhesives, binders, surfactants, lubricants
6
Complies with regulations for food and beverage contact
6
Approved for use in potable water applications
6
Ease of disposal via incineration or shredding
6
No bond joints to break
6
Easy to install
Photo 1. - Compressible vs Rigid
Compressible
structures @ 35 psid
Rigid
2
Media compression can also cause the filter to release already held particles. The robust PolyKLEAN
r
filter captures and retains contaminant within its rigid filter matrix, even under increasing differential pressure. In addition, the unique depth filter structure of the PolyKLEAN filter provides a significant increase in contaminant holding capacity and provides greater flow capacity at a given pressure.
Unlike soft meltblown and string-wound filters that require core support, the PolyKLEAN filter is self-supporting and is grooved to provide greater than twice the surface area. The increase in surface area prevents premature blinding of the outer surface by large particles and gels and promotes fuller utilization of the depth-matrix. The result is significantly longer life than competitive cartridges.
PolyKLEAN Filter Performance
PolyKLEAN filters exhibit superior filtration characteristics. The rigid construction allows for enhanced performance compared to other filter structures with equivalent removal ratings.
Superior Service Life
Extensive testing of PolyKLEAN filters has demonstrated an appreciable advantage in service
Graph1.-Life Comparison of Filters Exhibiting
Similar Efficiency
life. Graph 1 compares rigid PolyKLEAN filters to typical meltblown and string-wound filters of equivalent efficiency. All filters were challenged under identical conditions. Comparison of test results, when test filters are subjected to the same contaminant load up to 20 psid, shows the relative life of the test filters. As depicted, PolyKLEAN filters typically provide nearly twice the life of its closest competitor, and up to10
Percent (%) of
PolyKLEAN Filter Life
100
50
PolyKLEAN
Meltblown 1 Meltblown 2 Wound Filte
0
Meltblown 3
times or more the life of some competitive filters.
Consistent Removal Efficiency
The rigid PolyKLEAN structure resists deformation, filter by-pass, compression, and particle unloading. This allows PolyKLEAN filters to achieve excellent filtration efficiency up to its recommended change-out pressure (35 psid), while typical melt blown and wound structures exhibit significant drops in
removal efficiency at much lower differential pressures (£ 10 psid). To demonstrate the PolyKLEAN filter’s
removal consistency, efficiency at four sampling points (initial, 0.5 psid, 1 psid, and 10 psid) was measured on PolyKLEAN filters and typical melt blown and wound structures. All equivalently rated filters were tested under the same conditions to enable direct comparison. As shown in Graph 2, PolyKLEAN filters display a stable, consistently higher contaminant removal throughout the duration of the test. Note that the other melt blown and string wound structures yield erratic removal and as such can not provide predictable performance even under controlled conditions of uniform contaminant loading and pressure.
Graph 2. - Efficiency Comparison of Filter Cartridges
Rated at 5 Microns
100
80
60 40
20
Percent (%) of
0
PolyKLEAN Efficiency
Initial
Differential Pressure (psid)
0.5
1
10
PolyKLEAN
Meltblown 1
Meltblown 2
Wound Filter
3
Loading...
+ 5 hidden pages