Ultradyne® PTFE Membrane Filter (Hydrophobic)
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Ultradyne®
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industry experts.
Ultradyne®
PTFE membrane filters providing the utmost assurance of chemical resistance, durability, and critical filtration performance in aggressive fluids.
Ultradyne® absolute-rated polytetrafluoroethylene (PTFE) membrane filters offer the highest level of assurance of chemical compatibility and filtration performance in aggressive chemicals, prolonged hot air service, and other severe process conditions. Ultradyne® filters’ PTFE membrane delivers superior flow rates and long service life. The highly porous membrane is inherently hydrophobic and offers maximum chemical compatibility with minimal extractables in a wide range of fluids and applications. Support components are all-polypropylene.
Design Features
- Absolute liquid ratings from 0.1 µm to 1.0 µm
- Meets ASTM bacterial validation standards
- Superior flow rates at low pressure drops
- Ultraclean – no additives, surfactants, or post-treatments
- Inherently hydrophobic PTFE membrane
- Wide chemical compatibility
- Extended service life in sterilizing hot compressed air
- Minimal extractables levels
- 100% integrity tested
- Cleanroom manufactured
Ultradyne® PTFE membrane meets the critical demand for contamination control in the chemical, microelectronics, aerospace, biologicals, pharmaceuticals, food and beverage, and other industries. The Ultradyne® cartridge is designed for the removal of particulates, colloids, and microorganisms from aggressive solvents, highly corrosive chemicals, and gases. It is ideal for bulk and point-of-use filtration. Typical chemicals include:
- Highly concentrated acids
- Bases
- Alcohols
- Chlorinated and fluorinated solvents
- Esters
- Ketones
- Photoresists
- Etchants
- Photolithographic solutions
For aqueous solutions, the Ultradyne® PTFE membrane filter must be pre-wet by immersion in a suitable low surface tension fluid. The inherently hydrophobic Ultradyne® PTFE membrane filter is ideal for gas filtration applications that include:
- Compressed air
- Fermentation air
- Pressurized gases
- Tank venting
Filter Configurations Available for Ultradyne®
Typical water flow rates per 10″ cartridge
Typical air flow rates per 10″ cartridge
Citations
Frequently Asked Questions
What is the Ultradyne® PTFE Membrane Filter (Hydrophobic)?
The Ultradyne® PTFE Membrane Filter is an absolute rated, pleated hydrophobic filter cartridge made entirely of PTFE and polypropylene. It is designed for critical filtration in aggressive chemical and severe process conditions, offering chemical purity, high flow rates, and long service life. Available in retention ratings from 0.05 to 5.0 microns, it provides reliable filtration performance with minimal extractables and meets FDA and USP Class VI standards for biosafety.
What applications is the Ultradyne® PTFE Membrane Filter (Hydrophobic) used for?
Ultradyne® filters are used for filtration of aggressive solvents, highly corrosive chemicals, and gases. Typical applications include filtration of highly concentrated acids, bases, alcohols, chlorinated and fluorinated solvents, esters, ketones, photoresists, etchants, and photolithographic solutions. The hydrophobic nature makes it ideal for gas filtration such as compressed air, fermentation air, pressurized gases, and tank venting. For aqueous solutions, pre-wetting with a low surface tension fluid is required.
What specifications or sizes are available for the Ultradyne® PTFE Membrane Filter (Hydrophobic)?
The Ultradyne® PTFE Membrane Filter is available in absolute retention ratings of 0.05, 0.1, 0.2, 0.4, 1.0, and 5.0 microns. It is constructed entirely of PTFE membrane and polypropylene support components, with thermal bonding for sealing. O-ring and gasket seal options include Buna, EPR, polyethylene, silicone, Teflon® over silicone, and Teflon® over Viton®. The materials comply with FDA 21 CFR 177 and USP Class VI standards.
What makes the Ultradyne® PTFE Membrane Filter (Hydrophobic) unique?
Ultradyne® filters feature an inherently hydrophobic PTFE membrane that provides a natural water barrier without additives that can leach. The filter is constructed with a rugged thermal bonded design, eliminating binders or adhesives, which ensures maximum chemical compatibility and low extractables. It is 100% integrity tested at the factory for reliability and meets FDA food contact and USP Class VI biological reactivity requirements, making it suitable for severe chemical environments and multiple sterilizations.
Is the Ultradyne® PTFE Membrane Filter (Hydrophobic) suitable for regulated biopharmaceutical manufacturing?
Yes, the Ultradyne® PTFE Membrane Filter meets FDA requirements for food contact per 21 CFR 177 and complies with USP Class VI biological reactivity tests, including pyrogen and cytotoxicity standards. It is biologically inert, non-toxic, and biosafe, making it suitable for regulated biopharmaceutical manufacturing environments that demand stringent contamination control and material safety.
What other products are commonly used with the Ultradyne® PTFE Membrane Filter (Hydrophobic)?
Common complementary products used with Ultradyne® filters include Single-Use Systems, M-Flex® TPE Tubing, M-Sil™ Braid Reinforced Silicone Tubing, BioLink® Modular Overmolding Technology, and SGT (Single-Use Gauge Tee). These products support upstream and downstream fluid handling and filtration workflows.
