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.
- High capacity basket and bag fitting tool – Provides increased surface area compared to traditional baskets.
- Basket removal tool.
Filter Bag Accessories Brochure
- Adjustable legs – Stainless steel construction in standard or custom made lengths.
- Wall mounting brackets.
- Pressure gauges – Stainless steel gauges supplied either on their own, or as an assembly with Tee piece and vent valve. We can also provide differential pressure gauges with or without electrical contacts, and an installation option when ordered with a vessel.
- Hold down devices.
- Bar Magnets – Magnetic particles from process liquid adhere to the bar magnet surface. Filter bag lifetime is prolonged by reducing the amount of solid collected by the bag, and reducing surface abrasion of filter media which can be effected by sharp particles. Neodymium rare earth magnets have a magnetic flux density of 12,000 Gauss, are deep field, and can operate upto 120oc without significant loss of field strength. Magnet holding ring can be fitted with upto 5 magnetic bars.
- Displacement floats – Displace liquid in the vessel ensuring easier bag changes and reducing product wastage.
- Valves – All common types such as monoblock, L-port, T-port, butterfly valves.
- Stainless steel adaptor head – For open bag systems, with BSP fitting.
- Deflector plate for oil absorption
- V clamps – for use with housing models such as RBFD, RBFV and CHD series.
- Eye nuts, swing bolts and clevis pins – Zinc Galvanised or stainless steel.
- Eye nut key
- O-rings – Materials include Viton, EPDM (ethylene propylene), Buna-n (nitrile), silicone, PTFE, PTFE encapsulated viton, PTFE encapsulated silicone. Available in all cross section types and sizes.
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.