Type: 6.18.2


Application : Water


Maximum Capacity: 9000 m3/hr


The filter Type 6.18.2 is suitable for difficult operating conditions, e. g. for the filtration of river water, sea water or ballast water.


The BOLLfILTER Automatic TYPE 6.18.2 impresses even under the most demanding conditions, due to its excellent precision and reliability. One of the main reasons for this is that it is equipped with specially stabilised duplex filter elements. These  are  open at  both  ends  allowing  the water for filtration to flow through from each end. Due to their length and increased diameter, their filter surface area  is  especially  large.  The  Hydrodynamic Element located in the middle of the filter element results in ad­ditional increase in velocity, maximising the backflush effect. The maximised backflush effect provided by the Hydrodynamic Element and alternating flushing function ensure trouble free operation  and reduce  the risk  of blocking.


Technical Details:


Type of Filter element : Wedge wire candle with smooth surface and Hydrodynamic element

Nominal diameter: DN 200 - DN 1000

Grade of filtration: 30 µm - 5mm *

Backflushing medium: Internal medium
Pressure stage PN 6 / PN 10 or PN 16 (higher pressure stages available on request)
Filter housing: Carbon steel
Carbon steel rubber lined
Stainless steel
Super Duplex
Features: Cylindrical elements open at both ends with hydrodynamic element – alternately backflushing with second flushing arm