Particle gas filter for Heavy Duty
Flange Connection
¾” – 8” or DN 20 – DN 200
Filter element
Fiberglass/stainless steel disposable cartridges.
Cleanable elements (star-pleated) made of stainless steel.
Grade of filtration
0,5 - 250 µm
Pressure stage
>500 bar (size and temperature dependent)
Filter housing
- carbon steel (St 45-8 / A106B)
- stainless steel (1.4404 / 316L)
- non-welded
General Accessories and Special Equipment
1.) Connecting elements:
Flexible connection possibilities.
e.g., flanged, NPT, weld-on ends, ball valves, needle valves.

2.) Instruments:
Differential pressure connections such as optical and optical/electrical. Differential pressure measurement systems.

3.) Materials:
Filters available on request in Duplex or Super Duplex.

4.) Optional equipment:
Cover lifting/pivoting mechanism.
Cover safety device.
Special accessories for gas filtering
- Pre-separator for liquid reduction / cyclone and cyclone demister
- In addition to standard, filters also available in duplex and Superduplex (on request)
- Liquid level switches
- Magnetic level indicator
- Bulls Eyes
- Adaptable fluid reservoir for saving the separated fluid

Duplex filter solution for gas filtration

The BOLLFILTER Duplex type BFD-P HD M is an outstanding particulate gas filter that has been specially developed for use in heavy-duty applications. This filter offers an excellent solution for the effective removal of solids/dirt particles from gases generated in demanding industrial processes. Whether it's dust particles, dirt or other contaminants, the BOLLFILTER Duplex type BFD-P HD M will keep your system clean and running smoothly.

Thanks to its robust design and high-quality materials, this filter is extremely durable and resistant to the stresses of daily operation. It can be used even under extreme conditions while maintaining its high efficiency. It can be used in various industries such as petrochemical, power generation, pulp and paper production and many others. With its impressive performance, it is the ideal solution for demanding applications.

Would you like to contact us?
Jörn Grotepaß, Head of Business Unit Compressors & Turbines Boll & Kirch Filterbau GmbH
Jörn Grotepaß Head of Compressors & Turbines Filtration

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