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.
- 7” or 4” galvanised Steel rings (or stainless steel) which fit universally into all filter housings. Polypropylene rings and stainless steel bands are also available.
- Custom designed moulded Welseal (polypropylene or polyester) welded rings, giving more positive sealing, needle hole elimination and lifting handles for faster and easier bag installation and replacement. A Welseal ring product is fully combustible.
- Custom designed positive sealing Santaseal moulded ring, for applications where high temperature or chemical resistance properties are required.
Download: Standard Filter Bags BrochureChemical Compatability Guide
| Media / Collar Type | Acids | Alkali | Solvents | Oxidants | Recommend Maximum Operating Temperature (*C) |
| Polyester | Good | Good | Excellent | Poor | 140*C |
| Polypropylene | Excellent | Excellent | Good | Excellent | 93*C |
| Nylon | Fair | Good | Excellent | Fair | 110*C |
| Nomex* | Good | Good | Excellent | Excellent | 200*C |
| PTFE | Excellent | Excellent | Excellent | Excellent | 260*C |
| Santoprene* | Excellent | Excellent | Excellent | Excellent | 200*C |
| Bag Size | Diameter (inches/mm) | Length (inches/mm) | Surface Area (m2) | Volume (l) | Maximum Flow Rate (m3/hr)* |
| 1 | 7″/180mm | 17″/430mm | 0.25 | 11.0 | 20 |
| 2 | 7″/180mm | 32″/810mm | 0.50 | 20.0 | 40 |
| 3 (1M) | 4″/104mm | 9″/230mm | 0.07 | 1.9 | 6 |
| 4 (2M) | 4″/104mm | 14″/360mm | 0.12 | 3.2 | 10 |
*Flow rate depends on factors such as filter media type, micron rating, and fluid being filtered. All dimensions are nominal.
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