A conical filter device is used to filter steam, gases or liquid passing through a pipe line from upstream to downstream. The filter device includes a filter media which is generally a SS mesh filter in a conical housing.

Strainers come in several different styles based on the needs.

A plate strainer is the simplest, in which water flows through a perforated plate. The plate is held between two conical parts of its housings with sealing gasket or O-ring. This type of strainer is called plate strainer.

A basket strainer is a design where the strainer is shaped like basket and usually installed in a vertical cylinder. The basket strainer is easier to clean because the debris is captured in the basket. The basket offers more straining surface area than a plate strainer, improving flow rates, or decreasing pressure across the strainer.