Hi-line Industries Ltd


The compressed air treatment specialists Hi-line Industries Ltd, have now further extended their impressive product range with an extension of their HFF range of flanged filter units. These products can now be offered in seven sizes from DN80 up to DN300, covering air flow throughput rates from 1700 to 15,000 scfm.

These high quality filter housings have been designed solely with energy efficiency in mind, combining smooth, burr-free inner surfaces with in-line ports sized optimally to match required system flow rates. Incoming air entering the filter housings passes through a unique stainless steel head which transfers the compressed air flow through the filter elements, resulting in an exceptionally low differential pressure. The utilisation of in-line rather than offset ports ensures a compact and simplified installation, while also providing easy access to the filter element chamber for service/replacements. A davit hinged bottom lid is also utilised on the filter housing so that filter element change out is a fast and ergonomic process easily and safely undertaken by only one person. Once the lid fixing nuts have been released, the bottom closure lid swings clear under its own weight, while still remaining securely attached to the filter housing. This bottom housing lid is also fitted with a central zero loss auto condensate drain as standard.

The filter housing is galvanised prior to an overall fluid powder coating in the conventional RAL 5015 compressed air blue colour. This provides a high grade finish throughout for both the inner and outer surfaces of the vessel. The HE range of Hi-line pleated filter media elements are supplied for use with these housings. One element is required for the smallest HFF 1700 filter unit with up to 24 elements required for the largest HFF 15000, where they are secured with tie rods. These elements cover filtration from 3 micron down to 0.001 micron, with specialist granular activated carbon cartridges available for class ‘O’ applications. In all cases, air flow ‘out to in’ or ‘in to out’ can be accommodated to suit installation requirements.

The full range of the HFF flanged filters are kept in stock for next day delivery. All products can also be made available in ASME VIII, ‘U’ stamp, PD 5500 and other codes as required with all having compliance with the European Pressure Directive and being CE marked.