Product description
Hydrophobic PVDF membrane filter cartridge for high-performance liquid and solvent filtration
The hydrophobic PVDF membrane filter cartridge is designed for demanding liquid and solvent filtration applications where high chemical resistance, low extractables and stable filtration performance are required. Manufactured using a hydrophobic polyvinylidene fluoride (PVDF) membrane, this pleated cartridge delivers high flow rates combined with low pressure drop.
The hydrophobic nature of the PVDF membrane provides excellent compatibility with aggressive liquids and solvents while maintaining reliable particle retention and membrane integrity throughout the service life.
Filtration principle
The cartridge operates using hydrophobic membrane filtration with a controlled microporous structure.
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Process liquid flows from the outside to the inside of the cartridge
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Particles and contaminants larger than the membrane pore size are retained on the membrane surface
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Clean liquid passes through the membrane to the outlet
This filtration principle provides:
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absolute rated particle retention
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high flow rates at low differential pressure
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predictable and repeatable filtration performance
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low membrane extractables
Hydrophobic PVDF membrane performance
The hydrophobic PVDF membrane is selected for its balance of chemical resistance, mechanical strength and purity.
Key membrane characteristics include:
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broad chemical compatibility across acids, bases and many solvents
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low protein binding and low extractables
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high porosity for increased flow capacity
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robust membrane structure for long service life
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stable performance under demanding process conditions
This makes the cartridge suitable for challenging liquid filtration applications where polymer compatibility is critical.
Design and construction
The cartridge features a pleated membrane design to maximise effective filtration area and throughput.
Typical design features include:
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hydrophobic PVDF membrane media
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pleated construction for increased surface area
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polypropylene drainage and support layers
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rigid polypropylene inner core
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polypropylene outer support cage
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thermally bonded construction without adhesives or binders
This construction ensures mechanical stability and consistent long-term performance.
Materials of construction
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Filter membrane: Hydrophobic PVDF
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Support layers: Polypropylene
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Drainage layers: Polypropylene
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Inner core: Polypropylene
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Outer support cage: Polypropylene
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End fittings: Polypropylene
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Sealing options:
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EPDM
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Silicone
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Viton®
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Nitrile
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FEP encapsulated
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Operating conditions
Typical operating conditions include:
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absolute micron ratings suitable for fine liquid filtration
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continuous operating temperatures compatible with PVDF membrane
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high allowable differential pressure depending on temperature
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stable operation at high flow rates
Exact pressure and temperature limits depend on cartridge length, pore size and process conditions.
Key benefits
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Hydrophobic PVDF membrane for aggressive liquid filtration
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Absolute rated particle retention
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High flow rates with low pressure drop
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Broad chemical compatibility
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Low extractables and low protein binding
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Pleated design for extended service life
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Suitable for demanding industrial and process applications
Typical applications
These cartridges are commonly used in:
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chemical and solvent filtration
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pharmaceutical and biotechnology liquids
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food and beverage liquid processing
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ultrapure and process water filtration
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fine chemical production
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biological product filtration
Configuration options
Available configuration options include:
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multiple absolute micron ratings
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standard cartridge lengths
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double open end and single open end configurations
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222 and 226 O-ring connections with or without fin
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multiple sealing material options
This ensures compatibility with standard filter housings and specific process requirements.
Compliance and quality
Hydrophobic PVDF membrane filter cartridges are manufactured under controlled production conditions with full traceability. Each cartridge is integrity tested to ensure consistent filtration performance and reliability in critical filtration applications.