PTFE Membrane Filter Media

GGPTFE-Series General Grade PTFE

GGPTFE-Series High Purity General Grade PTFE Filter Cartridges, with expanded polytetrafluoroethylene (PTFE) membrane, provide superior chemical resistance for a broad range of industrial applications. With retention ratings as fine as 0.1μ (100 nanometers), consistent contaminant removal is achieved in aggressive fluids and organic solvents. In air/gas/vent applications, the single-layer PTFE membrane delivers superior hydrophobicity versus polypropylene or PVDF; offering a superior option to preclude water wetting and associated diminished flow. Manufactured in a clean-room environment in order to maintain high standards of purity and cleanliness.

Typical Applications

• Aggressive Fluids
• Fermentation Feed Air
• Venting
• Photoresists
• Inert gases

EPTFE-Series Electronics Grade PTFE

EPTFE-Series High Purity Electronics Grade PTFE Filter Cartridges, with expanded polytetrafluoroethylene (PTFE) membrane, provide superior chemical resistance in high-purity microelectronics applications. With retention ratings as fine as 0.02 micron (20 nanometers), consistent contaminant removal is achieved in aggressive fluids and organic solvents. In air and gas applications, the single-layer PTFE membrane delivers superior hydrophobicity versus polypropylene or PVDF, offering a superior option to preclude water wetting and associated diminished flow. Moreover, each element is integrity tested to assure optimal performance. Manufactured in a clean-room environment in order to maintain high standards of purity and cleanliness.

Typical Applications

• Solvent filtration
• Etching bath solutions
• High purity rinse water
• Photochemical solutions
• Bulk chemical delivery
• Ultrapure electronics – grade gases

BRPTFE-Series Bio-Burden Reduction Grade PTFE

BRPTFE-Series High Purity Bio-Reduction Grade PTFE Filter Cartridges, with expanded polytetrafluoroethylene (PTFE) membrane, provide reliable high-LRV reduction of micro-organisms in bio-process applications where the high cost of a fully-validated pharmaceutical-grade cartridge is not required. Whether it’s fermentation feed air, compressed gas, or a process venting application, the BRPTFE offers a high-flow, high-capacity membrane filter with exceptional hydrophobicity. The superior flow rate allows for economical costs of system design & operation. Proven 7.4 LRV retention of aerosolized bacteriophage provides reliable bioburden reduction and prevention of process contamination. Tolerates multiple sterilization cycles by autoclave or in-situ steaming. 100% integrity tested in production. Manufactured in a clean-room environment in order to maintain high standards of purity and cleanliness.

Typical Applications

• Fermentation feed air
• Compressed air & gases
• Process venting

PPTFE-Series Pharmaceutical Grade PTFE

PPTFE-Series High Purity Pharmaceutical Grade PTFE Filter Cartridges, with expanded polytetrafluoroethylene (PTFE) membrane, provide optimized filtration performance in sterile air/gas filtration and venting applications. The single-layer PTFE membrane, with over twice the hydrophobicity of polypropylene or PVDF, is the best choice to prevent water intrusion and resulting microbial growth. Each PPTFE cartridge is integrity tested during manufacturing and is supported by a validation guide for regulatory compliance. PPTFE elements are fully validated as sterilizing grade filters in liquids in accordance with HIMA and ASTM F838-05 guidelines and in gases through full retention of the MS2 phage in an aerosol challenge. Manufactured in a clean-room environment in order to maintain high standards of purity and cleanliness.

Typical Applications

• Sterile gas filtration of fermenter inlets
• Off‐gassing downstream of fermenters and bioreactors
• Autoclave vent filters
• WFI tank vents
• Sterile air supply for service gases (i.e. filling lines in blow‐fill‐seal systems)

GPFA-Series Pleated All-Fluoropolymer PTFE/PFA

GPFA-Series High Purity All-Fluoropolymer Filter Cartridges provide superior chemical compatibility, temperature range, and ultra-low extractables for the most demanding needs of the micro-electronics industry. Ideal for aggressive “wet-etch and clean” applications. The PTFE membrane offers high flowrates at low pressure drop, while the PFA-440HP hardware exhibits superior chemical resistance and high temperature tolerance. Minimized ionic and TOC extractables are attained through a specialized UPW flush process. Wet-packing option is available for ease of wetting in aqueous applications. Available in the full range of micron ratings in order to suit all applications.

Typical Applications

Highly Reactive Chemicals

• Acetic Acid (10%)
• Hydrofluoric Acid (50%)
• Hydrogen Peroxide (30%)
• Nitric Acid (conc.)
• Phosphoric Acid (conc.)
• Sulfuric Acid (cavonc.)
• Ammonium Hydroxide (conc.)
• Potassium Hydroxide (conc.)
• Sodium Hydroxide (conc.)
• TMAH (5%)
• Aqua Regia (HNO3:HCl)
• BOE; NH4F:HF
• Mixed Acid Etch
• ChromPhos Etch
• Piranha Etch