Leading filtration technology provides safer failure-free operation

Through our new patented backflushing technology in the BOLLFILTER Automatic Type 6.21, we offer an efficient diesel oil filtration system at a competitive price.

Through our new patented backflushing technology in the BOLLFILTER Automatic Type 6.21, we offer an efficient diesel oil filtration system at a competitive price.
The innovative backflushing technology in the compact diesel oil filter from BOLL & KIRCH is a high-performer for all large diesel engines, setting a new standard in respect of the precision filtration results and trouble-free operation. The highly effective backflushing process generates a very low flushing volume thanks to our innovative technology.

The result is a minimal pressure drop in the short backflush process and consequently a constant working pressure in the engines fuel oil system leading to continuous operation – even under extreme conditions.

The 6.21 can be supplied, as an option, with flanged-on change-over valve and manual bypass filter as an additional guarantee for a continuous filtration process. Designed and manufactured to the highest standards the filter is extremely reliable, simple to operate and easy to maintain. The high quality materials precision manufacturing and robust design make the filter a sound investment for a long lifetime service.

Overview of the advantages:

  • “Made in Germany“quality
  • Highly efficient backflushing technology
  • Easy retrofitting compact design
  • Immediately available, rugged & reliable

More information about the product