Conception du filtre à tamis

The simple design and reliability of mesh filters have contributed to their wide application in engineering systems and industry for mechanical filtration of flow from solid inclusions.

Mechanical filters consist of a housing and a filtering element. The filter housing is usually made in a Y-shape from bronze, brass, cast iron, or steel, with a flanged or threaded connection to the pipeline. The filtering element is made of perforated sheet or mesh of stainless steel, firmly fixed on the cover of the sludge collection tank.

Bronze and brass filters are used with a nominal passage diameter up to DN50. Brass pipeline fittings are characterized by low cost and high reliability. The drawbacks of brass filters can include dezincification of brass, which involves selective corrosion, during which zinc is removed from brass, and copper remains. Manufacturers of high-quality brass filters have solved this problem by using brass resistant to dezincification.

Mesh filters made of cast iron and stainless steel are typically used for pipe diameters from DN40, although they are also produced in smaller sizes. Cast iron filters are characterized by low cost, while stainless steel filters have high resistance to aggressive environments.

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