Polysulphone filters

Flat-sheet modules are similar in some ways to conventional filter presses. An example is shown in Figure 16.17. This consists of a series of annular membrane discs of outer diameter 0.3 m placed on either side of polysulphone support plates which also provide... 

These plastics are processable by injection moulding, blow moulding, extrusion and sheet forming and can be plated. Applications include electronic connectors, TV components, printed circuitry, projector lamp housings, and filter bowls. Produced in the USA, it is worthwhile monitoring the availability of polysulphones as applications are planned. 

Filter medium material for the removal of viable organisms from compressed air tends to be either of borosilicate glass microfibres or meltspun fleece or PTFE membranes, supported on 100% glass fibre woven fabric or polysulphone or polypropylene spunbonded textiles. 

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