Pall’s melt-blown depth filter cartridges are designed to achieve industry-leading filtration performance and accommodate fluid process needs in a variety of applications. Recognizing that different applications have different fluid cleanliness and filtration requirements, the Pall range of depth filter products are designed to help you choose the best solution at the most economical cost.
Pall offers three distinct groups of melt-blown filter elements including:
Melt-Blown Depth Filters
Known for their enhanced dirt holding capacity, Melt-Blown (or gradient) depth filter cartridges are constructed of melt-blown polypropylene media and feature a fixed fiber matrix with a graded pore structure. Along with continuous intertwined fibers of varying diameters this structure poses a tortuous path for fluid and particulates throughout the depth filter media. The excellent element strength is due to metal, polypropylene, or extruded fibrous inner cores. With the coarsest pore sizes in the outermost layers and decreasing pore sizes towards the innermost layers of the cartridge, pre-filtration and fine filtration can occur within the same cartridge.
The high strength and long service life of a depth filter cartridge can be advantageous over other surface filtration methods due to less frequent change-outs, improved quality, and reduced operational cost.
Spiral-Wound Depth Filters
Pall also offers an innovative spiral-wound depth filter cartridge, which is absolute rated and uses multiple layers of media to create a graded pore structure that provides pre and final filtration in one cartridge. The Poly-Fine® ARD Series of filter cartridge use a proprietary filter media produced directly by Pall for highly consistent, reproducible performance.
|Depth Filters||Filter Medium||Polypropylene|
Core, Cage and Endcaps
|Filter Grade Range||100 nm to 200 µm|
|Length||10.2 cm (4 in.) to 127 cm (50 in.)|
Polyurethane Production –
Used for the filtration of:
CMP applications such as:
1. What applications are Pall's melt-blown depth filter cartridges most suitable for?
Pall’s melt blown depth filter cartridges are best-suited for fluid applications involving:
2. What is CoLD melt blown fiber technology?
Pall’s CoLD (Co-located Large Diameter) melt blown fiber technology is an interlinked structure composed of micro-thin fibers and large diameter support fibers. This innovative design offers a highly efficient contaminant removal rating, long service life and improved mechanical strength.
3. Where can the high critical cleanliness filter elements be used?
The high critical cleanliness melt-blown filter elements can be used in fluid make-up and contamination control, including silt removal, polishing, and clarification.
4. What are the critical to general particulate control filter elements best suited for?
5. Where can the general particulate control filter elements be used?
General particulate control filter elements can be used as pre-filters in primary applications for higher fluid flows.