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Round Filters: Small Extraction Tasks Solved Cleanly

The KRF round filter is suitable for filtering exhaust or intake air in applications with lower aspiration requirements. The filter element is designed for an airflow of 240 l/m²s at 200 Pa. Its robust steel housing and tool-free replaceable filter make the KRF a practical solution for enclosures or containers where process-generated dust occurs and exhaust air must be filtered. The container connection is standard with a DN140 mm push-fit coupling but can be customized upon customer request.

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Rundfilter KRF

RATEC round filters clean exhaust or intake air wherever only a small amount of extraction is needed, for example on containers or enclosures in which dust is generated by the process. They are compact, robust and quick to install, and the filter element can be changed without tools. We adapt every filter to your application and build it at our own plant in St. Veit an der Glan, Austria.

How round filters work

A pleated filter element sits inside the round steel housing. The filter is connected directly to the container or enclosure by a push-fit connection. The air flows through the filter medium, the dust is retained and the cleaned air exits. Depending on how it is installed, the round filter works as an exhaust air filter, for example when venting a container, or as an intake filter for clean supply air.

round filter function

Your benefits

  • Compact: fits directly on containers, enclosures and machines.
  • Robust: sturdy steel housing for industrial use.
  • Tool-free: filter element changed quickly and easily.
  • Easy to connect: push-fit connection, no complex installation.

Key technical data

FeatureRound filters
Applicationexhaust or intake air for smaller extraction tasks
Housingrobust steel housing
Filter elementreplaceable without tools
Airflow, filter element240 l/(m²·s) at 200 Pa
Connection (standard)DN 140 mm push-fit connection
Customisationto customer requirements

To change the filter, the round filter is removed together with its housing and the filter element is replaced without tools.

Round filter exterior

For larger tasks

For more air and higher dust volumes, we offer our cartridge filters, and for many extraction points, our central vacuum systems. We manufacture in our own plant in Carinthia, certified according to ISO 9001, EN 1090-1, and ISO 3834-2.

Need a compact filter for your container?

Tell us the application site, dust type, and connection. We will get back to you with a concrete proposal.

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Frequently asked questions

Key factors are the installation site, dust type, air volume, and connection. RATEC custom-engineers every solution, which is why there is no fixed price. You will receive a customized quote.

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The standard is a DN 140 plug-in connection that fits directly onto the container. RATEC manufactures suitable adapters or custom connections for other sizes. The filter element is designed for an airflow of 240 l/(m²·s) at 200 Pa.

The filter cartridge should be replaced when airflow noticeably decreases or the container builds up overpressure during filling. How quickly this happens depends on the amount and type of dust. With RATEC round filters, the filter is removed along with its housing, and the cartridge is replaced without any tools.

A round filter, also known as a bin vent filter, filters the air that escapes or is drawn in when a container is filled or emptied. This prevents dust from escaping and dirt from entering. RATEC round filters are mounted directly on containers and housings for small extraction tasks.