Food & Pharmaceutical Grade Filter Bags
Bag filters, when used in food, beverage or pharmaceutical applications, must conform to EC directives governing plastics in contact with food. Migration limits of contaminants from polymers into a food product have been imposed, and independent testing and certification of component materials is required to ensure these regulations are satisfied. Stringent manufacturing and warehousing conditions as well as special packaging procedures are also required to eliminate other sources of contamination.
Allied Filter Systems Ltd is a leading manufacturer of food grade filter bags which fully satisfy the above conditions.Read more
The constituent materials have been chosen for their purity, giving low levels of migration and ensuring consistent high quality and performance.
- Polypropylene and polyester needlefelt
- Polypropylene and polyester extended life needlefelt
- Nylon monofilament mesh
- Polypropylene and polyester microfibre
Combined with our positive sealing Welseal (polypropylene or polyester) welded ring, needlefelt food grade filter bags have a fully welded construction as standard. The external surface of the filter bag is calendered or singed, eliminating any possibility of fibre migration into the filtrate. Each bag may be individually wrapped.
All filter bags are manufactured to IS0 9001 quality standards. Further information on food grade products is available on request.
Allipure Series – High Efficiency Filter Bags
Allied Filter Systems Ltd has developed the Allipure series, a unique range of absolute rated filter bags rated from 5 to 0.6 micron, which perform to an efficiency of 99.98% (Beta 5000) at the stated micron rating. For processes requiring absolute and/or sub micron liquid process filtration, the use of filter cartridges has previously been the method of choice to achieve high performance in critical applications with consumable filter elements.
Extended Life Filter Bags
Increased thickness of the filter media compared to that of the equivalent standard felt filter bag enables an increased retention of particles. In addition, the extended life filter media has a graded density structure i.e. progressively smaller particles are captured as the fluid follows a tortuous path through the media, stopping the filter bag from blinding prematurely. The result is a filter media with a higher dirt holding capacity, leading to increased filter bag lifetime.
Filter Bag Accessories
Allied Filter Systems Ltd is able to supply a wide range of bag filter accessories to complement our range of filter housings and also those from other manufacturers. Restrainer baskets – Stainless steel 316L in all industry standard sizes and available in a variety of styles to fit all types of housings. Baskets can also be manufactured with a stainless steel mesh lining (37 to 840 micron) or produced from perforated sheet other than the standard 3mm, commonly 1mm to 10mm. Coated baskets (e.g. Halar) are also available.