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Porvair launches Cartridge Filters for Small-scale Process Applications

Porvair Filtration GroupPorvair Filtration Group has announced a new range of cartridge filters optimised for bench top scale-up experiments and pilot plant evaluations to confirm suitability in new process applications.

Leading the range are FluorofilTM Junior ePTFE membrane cartridges, designed for retrofitting into Junior-style housings to meet the demanding filtration requirements of biopharmaceutical, semiconductor and fine chemical manufacturers. Offering a wide range of chemical compatibility with high thermal stability they are suitable for most small-scale sterile venting and gas filtration applications, including the filtration of wet gases. They can also be used for the small-scale fine filtration of aggressive chemical solutions including acids, alkalis, solvents and etchants.

Manufactured using a highly hydrophobic ePTFE membrane - FluorofilTM Junior cartridges offer exceptionally high gas flow rates at low pressure differentials .The hydrophobic characteristics of the ePTFE membrane makes the FluorofilTM Junior filter cartridge particularly suitable for wet gas sterilising applications.

Constructed with a proprietary multi-layer combination of irrigation mesh, filter membrane, membrane support and drainage material - FluorofilTM Junior cartridges have the optimal pleat geometry to maximise the available filtration area and to ensure an efficient flow through the cartridges. An all thermal fusion bonded assembly process eliminates the use of resins and binders.

Manufactured as standard with injection moulded polypropylene inner and outer supports, FluorofilTM  Junior cartridges are designed with the strength necessary to withstand thermal stresses encountered during steam sterilisation and subsequent cooling. They can be steam sterilised and will retain total integrity following steaming at 135°C (275°F). All components used in the construction of FluorofilTM Junior cartridges are FDA approved to 21CFR. FluorofilTM Junior cartridges are also validated for bacterial removal according to HIMA guidelines and ASTM F838-05, with a log reduction value >7.  The cartridges offer validation and retention performance in accordance with the recommendations of the Parenteral Drug Association's Technical Report 40 'Sterilizing Filtration of Gases'.

Manufactured in an ISO accredited cleanroom environment - FluorofilTM Junior cartridges are available in 2.5 and 5 inches, with a validated microbial rating of  0.2 micron.  They are supplied in two formats: J-style, a single open-ended element with a single internal o-ring seal on the downstream end cap and S-style, a single open-ended element incorporating an integral flange on the downstream end cap.

All FluorofilTM Junior cartridges are individually and batch identified with a unique serial number to ensure complete traceability. For a brochure describing the new FluorofilTM Junior cartridge range please visit or contact Porvair Filtration Group on +44-1489-864330 / +1-804-550-1600, email

Porvair Filtration Group is an international leader in the development and supply of materials and products for applications in filtration and separation. Their expertise in a wide range of media and the dedication of their design, manufacturing, sales, test and research teams ensure they are at the forefront of filtration technology, delivering world class performance to the Aerospace, Defence, Nuclear, Energy, Chemical Process, Industrial Process, Water Treatment, Printing and Life Science markets. With offices and manufacturing sites located in the UK, Europe and the USA combined with a world-wide network of market representatives and distributors, they pride themselves on their continuous innovation and research to meet global demands.

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