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duplex filter f101

The Duplex Filter F101D is a multi-purpose filter for liquid media. It is characterized by continuous operation during the cleaning phase as well as a high degree of filtration down to very low microns. As a special feature the maintenance and strainer access can be optimized by choosing different filter cover solutions.
The degree of contamination can be optionally monitored with various differential pressure indicators. Further options, for example magnetic inserts or the sacrificial anode enable an application-specific customization.


The Duplex Filter is produced as a cast part; one piece consisting of two identical filter housings which are connected via a switch-over device and can be operated alternately or in parallel. The standard filter design consists of a cast housing and a cover which is fixed with a clamp lock. Venting devices in the covers and draining devices in the housing are included in the scope of supply. The flanges are arranged one above the other on one side of the filter. The filter is equipped with a basket or ring-type strainer. The medium to be filtered flows through the strainer from the inside to the outside. The strainer is made out of a perforated plate which can be covered optionally with mesh in different mesh sizes. While starting up the plant it is possible to operate both filters in parallel which reduces the filter’s pressure loss. This has significant advantages in particular in case of fluids with higher viscosities which heat up during operation (cold start).

Further options and customer specific solutions are available upon request.

In- / outlet
DN15 – DN50
Operating medium
Housing Material
Design pressure
10 bar
Volume flow
max. 18 m3/h
Strainer insert
Basket strainer
Ring-type strainer
Grade of filtration
80 – 1000 µm (fabric / perforated plate)
≥ 1 mm (perforated plate)
10 – 60 µm (upon request)
Differential pressure indicator
Sacrificial anode
Magnetic insert
Filter support



28201 BREMEN

Tel.: +49(0)421-5 59 09-0

Fax: +49(0)421-5 59 09-40




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