SIKA-R...AS - Application: Gas- and liquid-filtration

Across industries, GKN porous sintered metal filters are ideal for a variety of filtration and separation applications. From chemical processing to water treatment, these specially designed filters can outperform traditional filter media and reduce total manufacturing costs. Most industrial operations and scientific processes require the separation of solid particles from liquid or gas. These particles may be the desired end product or considered waste. In either case, filtration occurs when fluid or gas passes through a porous material or medium, while larger particles are held back. A filter's effectiveness depends upon how efficiently it separates particles of a particular size, and how the flow rate of the transmitted fluid varies over time (cleanability during operation by back flushing).

Porous metal filters generally are made from bronze, stainless steel, nickel-based alloys and titanium, using different powder metallurgical techniques.

Porous sintered metal filter offer the following benefits:

  • stable, self-carrying structures, even at high pressures;

  • good mechanical strength under permanent loads, under impact loading,
    or under pressure peaks;

  • high-temperature strength and thermal shock resistance;

  • chemical stability against acids and (alkaline) detergents;

  • a wide spectrum of precisely defined pore size distributions
    (filter grades ranging from 0.1 to 200 µm for metallic powders and
    from 3 to 100 µm for sintered metal fiber felt); and

  • able to handle reverse flow, super-saturated hot steam, chemical agents,
    or high temperatures for cleansing and rinsing.