Pot-type strainers for protection against contamination
Strainers are industrial valves that are usually installed before sensitive valves, pumps, units, or fittings. Often, the use of valves with dirt or coarse particles in the pipelines is very disadvantageous. A strainer filters or "catches" these contaminants in the process medium and thus protects them.
All subsequent fittings and components can thus operate without damage or failure. The medium and the temperature determine how and from what the strainer must be made. The filtration quality is determined in advance according to your wishes and feasibility. Possible media include, for example, water, steam, oil, or even gas.
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Properties and Areas of Application for Y-Filters and Basket Strainers
Among the most common designs of strainers are basket strainers and Y-strainers (Y-filters). The filtration technology of these strainers is usually carried out using fine simple or multiple wire meshes. The fineness and arrangement of the wire meshes determine the filtration performance and quality of a strainer.
Y-strainers can be installed space-saving in pipelines due to their smaller size. Filtration in Y-filters occurs through the diagonally inserted filter or filter basket. The installation of a Y-filter is done through flange connections according to DIN EN, ANSI, or through threaded connections, usually with inch threads. Y-filters are usable in small nominal sizes from DN 10 to larger DN 200. The pressure stages of these strainers depend on the housing material, medium, and temperature. Possible pressure stages are PN 6 to PN 16 and from stainless steel up to PN 40. Common casting materials are brass, stainless steel, and casting materials of all kinds.
Basket strainers (SKF), or also pot strainers (TSF), are often used as strainers in large nominal sizes, high pressures, or large flow rates. The standard pressure classes of basket strainers range from PN 6 to PN 40. Higher pressures for these strainers are available upon request. Basket strainers are typically available in nominal sizes from DN 50 to DN 1000. However, nominal sizes greater than DN 1000 are also available upon request. Unlike a Y-filter, a basket strainer is manufactured in welded form and not in cast form. The materials include, for example, pressure vessel steel and stainless steel. However, special materials such as Hastelloy are also available upon request. The filtration of a basket strainer usually occurs, as the name suggests, through a basket insert that functions as a filter. A basket strainer is cleaned by replacing or cleaning the filter basket.
ACI Industriearmaturen is happy to assist you in selecting a strainer suitable for your process. Whether basket strainer, Y-strainer, with Welding ends, flanges, threaded connections, and these in DIN or ANSI. We advise you individually and tailored to ensure that we can deliver the exact fitting that matches your application. Contact us for a suitable offer or also if you need more information about strainers.