Self-cleaning Rotary Valves

For metering, sealing, feeding and discharging as well as measuring of bulk-solids in sticky, bridging and moist conditions, which tend to cause blocking,  such as coal, salts, ashes, limestone, slurries and methyl cellulose.

Base of this design is our standard Rotary Valve. The forced cleaning ensures a correct discharge of every kind of material, which wouldn’t be possible with  a standard model.

A scraper located below the rotor is driven by a synchronization gear. The scraper cleans each chamber, this process is maximzing the throughput and ensuring the proper function avoiding blockages of the adhering bulk product.

The sophisticated engineered geometry of our rotary-valves offers a minimum gap between the half-pipe shaped chamber and the scraper, thus enabling lowest possible residues.

Our product-range provides all the required options, designs and materials. It covers welded constructions in all standard material combinations with a variety of options and special equipment available to suit every special customer need in terms of properties of bulk solids and in-house-conditions. Depending on the application, we offer the self-cleaning rotary valves either heated or cooled as also process-optimized equipment such as leakage air collectors and overfill protections. Watch the video

Diameter from 80mm – 2.300mm

Heating or cooling optional

Wide choice of shaft-sealing-types – according to process conditions

Replacable wear sleeve for surface protection inside the housing against wear or abrasion

Köllemann self-cleaning-rotary valves convince with forced cleaning , which safeguards a proper discharge of every kind of material.
A scraper located below the rotor is driven with the help of a synchronisation gear. This forcefully removes the adhering bulk product mechanically to achieve the best possible throughput and to avoid possible blockages.
Thanks to the precisely matched cleaning curve, KÖLLEMANN rotary valves achieve optimum pocket emptying performance with minimised adhesions and residues.
The forced cleaning offers controlled conveying of all bulk materials that could not be handled by a non-cleaning standard model. Click here for product video Self-cleaning Rotary Valves

Forced mechanical cleaning

Clearing arm with free passage (without internal shaft)

Interchangeable wear strips

Optional heating or cooling

Your contact partner

Matthias Ginster
Head of Sales

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