> Filtration Efficiency | > Pore Size Rating | > Flow vs Pressure Drop | > Typical Applications | > Material Specifications

Why Choose POREX® MacroFlow PTFE Cartridge Filters?

• POREX MacroFlow PTFE Cartridge Filters are easy to handle and can be easily installed into existing filtration systems
• Porous PTFE membrane is pleated to provide high surface area required for many applications
• Sintered PTFE membrane provides high retention efficiency in large pore size
• Material complies with the Code of Federal Regulations, Title 21, Section 177.1520 Item 2.1, for food contact

Filtration Efficiency:

Filter performance is often expressed in terms of percent efficiency, defined as the ratio of upstream particle concentration compared to the downstream concentration that has passed through a filter body (multiplied by 100). POREX MacroFlow PTFE Cartridges exceed 95% efficiency at their rated pore size.

POREX MacroFlow PTFE Cartridge Filters are available in a range of pore sizes (from 1 to 10 microns) with retention efficiency. Multiple lengths and end configurations maximize performance capabilities. The Initial Retention Efficiency results per ASTM 795-88 are based on a single pass using a 2.69” diameter cartridge with 10” length at a flow rate of 1 GPM/ft 2 of water with ISO Fine or Coarse Test Dust.

Pore Size Rating:

Flow vs Pressure Drop:

The specific pressure drop values (psid/gpm) per 10” cartridge are provided for each filter grade. POREX MacroFlow PTFE Cartridges exhibit superior flow characteristics to other cartridges with comparable micron ratings. The benefits of lower pressure drop are longer cartridge life, higher throughput and lower operating cost.

Typical Applications:

• Chemical processing such as electroless nickel plating solutions
• Photochemical processing of resists and strippers
• Fine particle separation Chemical Mechanical Planarization slurries
• Solvent and fine chemical filtration of pharmaceutical intermediates
• Tank venting
• Ultrapure gas filtration

Material Specifications: