FILTER MEDIA TYPE

Membranes

Precision polymer membranes engineered for microbial retention, chemical compatibility, and high-throughput liquid or gas filtration. 

Process filtration expert conducting an end capper installation in a Clean room

Versatile media engineered for microbial removal

DANMIL offers a comprehensive membrane portfolio designed to meet exacting process requirements across pharmaceutical, food, and industrial sectors. Each polymer type provides unique performance advantages, whether it's the high-flow asymmetric structure of PES, the chemical and temperature resistance of PTFE, or the positively charged retention of Nylon 6,6 for endotoxins and colloids. PVDF membranes offer flexibility in both hydrophilic and hydrophobic formats, making them suitable for a wide range of aqueous and solvent-based systems. With high retention ratings, consistent pore structure, and validated performance, these membranes are available in cartridges, capsules, disc filters, and custom assemblies to support sterile filtration, polishing, and gas applications. 

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Membrane filter media image of PTPE
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  • Precise Particle Retention: Membrane pore structures are tightly controlled for consistent microbial, endotoxin, or particulate removal across batches. 
  • Polymer-specific Advantages: Each membrane type is selected for its fluid compatibility, from protein-friendly PES to chemically inert PTFE. 
  • Charged Membrane Options: Positively charged variants such as Nylon offer added protection by adsorbing negatively charged impurities like endotoxins. 
  • Flexible Configurations: Available in pleated, capsule, or disc form, membrane media are easily integrated into both small and large systems. 
  • Validated and Compliant: Membranes are manufactured under QA-controlled conditions and meet regulatory requirements for critical process applications.
  • Asymmetric Membrane Layers: PES membranes feature asymmetric pore gradients to increase throughput without sacrificing retention efficiency. 
  • Hydrophilic and Hydrophobic Options: PVDF and PTFE are offered in both water-wettable and water-repellent versions for flexibility in process fluids.
  • Positively Charged Options: Nylon can be positively charged to offer added protection by adsorbing negatively charged impurities like endotoxins.
  • Reinforced with Multiple Support Layers: Polypropylene and polyester substrates add strength, reduce risk of damage, and improve dimensional stability. 
  • Offered in Scalable Formats: Membranes are available in 10” to 40” cartridges, single-use capsules, or custom disc formats for R&D or pilot use.

Products you might be interested in

Micro & Membrane Filters

Sterile-grade micro and membrane filters for pharma, biotech, and beverage applications, ensuring product safety, purity, and compliance.
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Filter Cartridges

Sterile filter cartridges in PES, PTFE, PVDF, Nylon, and Glass Fiber, engineered for microbial safety and reliable performance in critical processes.
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Mini Cartridges

Compact sterile mini cartridges in PES, PTFE, and PP for pharma, biotech, and beverage applications, ensuring microbial safety in small-scale processes.
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Capsule Filters

Compact, ready-to-use capsule filters in PES, PTFE, and polypropylene for sterile liquids, gases, and small-scale pharmaceutical or beverage processes.
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