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 1 to 5 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.
The Allipure series utilizes filter media which has previously only been used in the manufacture of cartridge filters. This enables processes to achieve the same efficiencies using bag filters whilst benefiting from the advantages that a bag filter system has over an equivalent sized cartridge system.
The Allipure series is constructed from upto 8 layers of Polypropylene melt blown media, graded to give progressively finer filtration as the process liquid passes through the filter bag. This ensures that the dirt loading of fine particles is distributed effectively within the filter media. A coarse meltblown prefilter layer is present, to give high dirt holding capacities and protection to the finer filtration layers, prolonging the filter bag lifetime.
Allipure Series Filter Bag Brochure
The Allipure series can be steam sterilised or hot water sanitised. It is also compatible with many sanitising agents or alternatively can be Gamma sterilised.
Industries served include pharmaceutical, fine and speciality chemicals, food and beverage, potable water, speciality coatings, metalworking, toiletries, cosmetics, electronics and water treatment.
All high efficiency filter bags are constructed from FDA listed materials conforming to code of Federal Regulations 21 CFR Part 177, and also meet EC directives governing requirements for food contact applications.
Standard Filter Bags
Allied Filter Systems Ltd manufactures high quality liquid filter bags to fit standard size filter vessels, as well as custom designed products where requested. The constituent materials have been chosen for their purity, consistent high quality and repeatable performance. Filter bags are available in traditional stitched form or with a fully welded construction, and are fitted with a comprehensive choice of rings.
Sewn Needlefelt Filter Bags
Needlefelts are a versatile and cost effective media providing a high solid holding capacity for both non-deformable and deformable, gelatinous particles. By means of a depth filtration mechanism, particles penetrate and are captured throughout the depth of the filter media.
Fully Welded Filter Bags
All seams are welded rather than sewn, and combined with our positive sealing moulded Welseal (polypropylene or polyester) welded ring, no process liquid can bypass through needleholes caused by the sewing process or around a traditional metal ring. The Welseal ring forms a 360o hermetic seal between the filter bag and housing, ensuring that fully welded filter bags perform to a higher efficiency than a sewn equivalent.