May 21, 2021 · These filters are typically used as a clarifying filter or prefilter. Hydrophilic PTFE. These kinds of filters have maximum pH and chemical resistance. While wet, they are optically clear, and they provide high flow rates. You can use these types of membrane filters for HPLC and other kinds of mixtures of organic and aqueous solvents
Product Support. Whatman Polycap TF capsule filters from Cytiva are made with durable, hydrophobic polytetrafluoroethylene (PTFE) membranes in a polyproplyene housing for use with organic solvents and chemically aggressive solutions. PTFE filter membrane is resistant to most solvents. Available in 0.1, 0.2, 0.45, and 1.0 µm pore sizes.
Aervent cartridges have a 0.2µ PTFE membrane and are used in pharmaceutical applications where it is critical to use a phobic filter that has proven bacterial and viral retention capabilities. Common applications for Aervent are fermentation air applications, bioreactor inlet and outlet filtration and sterile process gases.
PTFE Membrane Disc Filters - TF 200, 0.2 µm, 293 mm (25/pkg) Product ID: 66146. Glass Fiber / Hydrophobic PTFE. Hold-Up Volume. 125 µL. Housing Material ...
PVDF has a low critical surface energy and conventional, hydrophobic, PVDF membranes will not wet with aqueous fluids. MS ® PVDF hydrophobic membrane can ensure wet air and other gas pass through smoothly, even when the differential pressure is very low. It holds the opposite capability against PVDF hydrophilic membrane.
With these filters, there is no need to pre-wet the membrane or flush pre-wetting chemicals. The hydrophilic PTFE membranes are able to maintain filtration integrity, reduce interference with biological processes, and maximize shelflife. Sterlitech's hydrophobic PTFE can also be used for filtering aqueous solutions, if pre-wetted with alcohol.
Shelco Filters' MicroVantage™ membrane filter cartridges are the premier choice when high purity and absolute retention are prerequisites for the filtration process. These premium performance cartridges are available with Polyethersulfone, Polysulfone, Nylon 6,6 and PTFE membranes and designed with the maximum surface area to optimize service
Once a hydrophobic filter has been wetted, aqueous solutions also will pass through. Hydrophobic filters are best suited for gas filtration, low surface tension solvents, and venting. In certain applications, hydrophobic filters are used to filter aqueous solutions because of compatibility requirements.
MS® PVDF Hollow Fiber UF Integrated Equipment . MS® PVDF hollow fiber UF membrane can effectively removal suspended solids and collide and microorganisms such as pathogens and receive low turbidity product water which have been becoming to a kind of very economical-efficient process in various types of water treatment such as industry and pure water filed.
Jul 30, 2009 · The unique physical properties of membranes give rise to certain advantages and disadvantages in air filters. High efficiency ePTFE membranes are very thin by their nature. A typical ePTFE membrane layer is 10 – 25 mm thick. Microglass filter media, by comparison, has a typical thickness of 300 – 400 mm.
of fluorocarbon materials. PTFE is an excellent material for filter membranes and is widely used for bulk, distribution, and point-of-use chemical filtration applications. Many applications involve the filtration of aqueous chemicals,which include etching, cleaning, photoresist development, etc. Since the PTFE membranes are hydrophobic,
Aervent cartridges have a 0.2µ PTFE membrane and are used in pharmaceutical applications where it is critical to use a phobic filter that has proven bacterial and viral retention capabilities. Common applications for Aervent are fermentation air applications, bioreactor inlet and outlet filtration and sterile process gases.
4) Increasing the pre-wet time. If time permits, soak the filter overnight or recirculate the wetting fluid for an extended period of time. 5) Use of a wetting agent – Some manufacturers offer filters with a food grade/pharmaceutical grade wetting agent such as glycerine. Graver offers this in the ZTEC product line as the QW (Quick Wet) option.
Membrane filters are available in standard and custom sizes, shapes and materials. Some common materials used are; MCE (nitrocellulose), Cellulose Acetate, Coated PTFE (Teflon), Hydrophobic PTFE, Nylon, polycarbonate, Glass. Many membrane filters are placed within a autoclave for sterilization and post filtration processing.
Hydrophobic PTFE membrane media rated at 0.01 micron in air. 1/2″ BSPM-T fitting for use on autoclave and storage tanks where bacterial and viral vent filtration is required. 1/2″ BSPM-T fitting for use on autoclave and storage tanks where bacterial and viral vent filtration is required.