Filter media woven wire mesh

There are three important types of metallic filter medium wire mesh, sintered powder, and random fiber. Wire mesh comes in a square weave or Dutch twill (woven in parallel diagonal lines). The different filter media do not perform equally with respect to their ability to hold contaminant, capture gels, etc. [11, 12]. A relative performance comparison is shown in Table 3.7. 

Textiles, as a woven cloth or a nonwoven fabric, are probably the most common industrial filter medium, and are made from natural (cotton, silk, wool) and synthetic fibres. Wire cloths and meshes are also widely used in industrial filtrafions, produced by weaving monofilaments of ferrous or non-ferrous metals the simpler plain weave is used for sieving and sizing operations, and the more complex weaves such as Dutch twills are used on pressure and vacuum filters. At the small scale, particularly for laboratory use, filter papers are common, made from fibrous cellulosic materials, glass fibre or synthetic polymers these papers are made using developments from conventional paper manufacturing processes. 

Woven media can be called woven wire, woven fabric, wire mesh, wire cloth etc. Precision woven wire cloth is a versatile, wear-resistant filter medium which has been widely used for many years and is available in a large variety of weaves made from many metals. The most frequently used metal is stainless steel, in either type 304 or type 316. The basic difference between the two types is the addition of molybdenum to the type 316 for increased corrosion resistance. Both are otherwise 18-8 alloys, i.e. 18% chromium and 8% nickel. Acmally type 304 is 18-20% chromium and type 316 is 16-18% chromium. 

---