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Contec wedge wire filters/metal edge filters - for complicated conditions

Self-cleaning without interrupting filtration

Liquid filtration using fully automatic wedge wire filters

Liquid filtration using fully automatic wedge wire filters

Contec wedge wire filters (also known as slotted tube or edge gap filters) are automatic, self-cleaning filters that do not require the use of conventional filter elements, meaning that the filter process can be carried out without interruption and is therefore ready for use at any time. This conserves resources, reduces costs, minimizes maintenance tasks and increases the efficiency of the system, as downtimes due to filter changes are eliminated.

Contec wedge wire filters have proven themselves many times over in industry for the filtration of difficult, low-viscosity and high-viscosity or gel-like media such as paints, emulsions, oils, polyurethane, bitumen and similar. Thanks to the sophisticated, easy-to-clean design and the use of food-safe materials, wedge wire filters can also be used for a wide range of applications in food processing. Contec wedge wire filters are already used for filtration in many food areas - whether chocolate, coffee extract or fruit juices.

Characteristics

Advantages

Flow rate

Filter ratings

Medium

Options

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Contact

Helmut Scherer
Product Manager
+49 (0)2224 9893-18
scherer[a]contec-filtration.de

FAQs

Wedge wire filters (split tube filters) are characterised by their simple and rapid filtration process. Their design allows for manual or automatic cleaning without interrupting the filtration process and with minimal product loss during solids discharge. 

The liquid flows through a split or sieve element, while solids are retained on its surface. A scraper cleans the surface through relative movement; the dislodged solids accumulate in the filter sump and are discharged either manually or automatically. 

Wedge wire filters are self-cleaning filters designed to reliably separate solids from liquids and highly viscous media. A key advantage is that they do not require the use of conventional disposable filter elements and enable the filtration process to continue without interruption. Wedge wire filters operate with virtually no wear.

Not necessarily. 'Split tube' primarily describes the design of the filter element; 'wedge wire filter' usually refers to a filter system whose surface is cleaned by scrapers or rakes. 

Depending on their design, wedge wire filters can be cleaned either manually or automatically. The dirt particles are discharged either manually via a valve on the housing or automatically. In fully automatic backwash filters, the contaminant particles are flushed out via a backwash mechanism in the filter housing and discharged as a result of the differential pressure.

They are frequently used for liquids containing a continuous suspension of solids, as well as for viscous media such as e.g.: