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Perforated metal sheets are more rigid and can be made stronger than woven wire cloths and so they find particular applications in strainers, coarse filters and screens. Perforated metal strainers…

The crimping of the individual wires in a mesh goes a long way towards ensuring the stability of the mesh, and therefore the constancy of the apertures of the mesh,…

The weave of any mesh is usually one of six basic types, but there are also some minor variations. Square mesh (Figure 2.9) has each weft wire passing alternately over…

The weaving of wire is no different, in principle, from the weaving of any other yarn: warp wires are set up along the loom and weft wires across it. The…

Media made from metals have already been mentioned, in Section 2C, in the form of sheets and tubes made from metal fibres and powders, usually sintered together to retain their…

As already mentioned, a major feature of the inorganic materials included here is their ability to operate at high temperatures. The importance of this particular set of applications is continually…

There is an important group of media materials that are not fabrics in the normally accepted sense of the word, because they are mostly not flexible, but they are made…

Just as needlefelts took market shares from some woven fabrics as filter media, so now are the newer meltspun synthetics expanding quickly into most filtration applications. These are the class…

For some, undemanding, applications, a simple felt can provide suitable filtration performance, without any form of strengthening. However, their low tensile strengths, and the ease with which fibres can become…

It is a common feature of solid/gas filtration, and, to a lesser extent, solid/liquid filtration, that the particles in suspension may carry an electrostatic charge, and therefore that a filter…