High performance microfiltration
High performance microfiltration
Keywords Filtration,Vokes
Utilising the latest developments in filtration technology, BTR Environmental Vokes Ltd has introduced Polyfil II a new range of high efficiency filter cartridges designed for the microfiltration of gases and liquids in processing applications where regular absolute filtration with minimal extractables is required. Fitted as either a prefilter or final filter, Vokes Polyfil II cartridges are claimed to provide vastly improved performance and give superior particle retention capacity without reducing filter life.
The cartridges incorporate the latest polypropylene, melt-blown, microfibre filter media to give particle retention ratings from 0.5 to 90µ with an absolute Beta (ßx) ratio of>= 5000 (99.98 per cent). According to Vokes the innovative pleated media construction, combined with a large filtration area of between 0.4 and 0.6m2per 10in module, achieves an unrivalled dirt holding capacity and, at the same time, ensures high flow rates through the media at a low differential pressure,so extending the filter life. The continuously graded pore structure permits the first two layers to provide prefiltration while the final layer provides the absolute rating. This specially developed Vokes media is also stated to be structurally stable, preventing fibre release and channelling, while virtually eliminating particle unloading even under impulse conditions.
The new range can be equally effective as final filters in process applications or as prefilters in sub-micron membrane filtration systems. Polyfil II cartridges can also be used for microfiltration in sensitised film processing, coatings and inks production,electroplating, process water, industrial gases and oil recovery applications.
Available in single or multiple module units of 5, 10, 20, 30, 40in and in special lengths to suit individual customer requirements, cartridges are manufactured in a range of 15 particle retention ratings. Designed for both Vokes filter housings and as direct replacements for existing cartridges, Vokes Polyfil II cartridges are also supplied with a wide variety of end fittings to suit most hardware installations without the need for modification and are available with a range of complementary net sleeve cartridges.
Details from BTR Environmental Vokes Ltd, UK. Tel: +44 (0)1483 207243; Fax: +44 (0)1483 236089;E-mail: rex.shorey@btrinc.com
