Filter technical details

Filters
- Automatic Backwash Filter
  BOLL & KIRCH
- Duplex Filter
  BOLL & KIRCH
- Simplex Filter
  BOLL & KIRCH
- Demister Filter
  BOLL & KIRCH
- Coalescing Filter
  BOLL & KIRCH
Membranes
Applications
- Renewable Energy
  - Hydro Power Plants
    Adobe Stock
  - Offshore Windparks
    Fotolia
  - Geothermal Energy
  - Alternative fuels
  - Green hydrogen
- Protection of Water Systems
  shutterstock
  - Ballast Water Management Systems
    Adobe Stock
  - Exhaust Gas Cleaning Systems
    iStock
  - Offshore Water Injection Systems
    shutterstock
  - Floating Storage and Regasification Units (FSRU)
    shutterstock
  - UV Systems in Wellboats
    shutterstock
  - Sewage Treatment Plants
    shutterstock
  - Potable Water Plants
    Getty Images
  - Irrigation Systems in Agriculture
    Fotolia
  - Irrigation Systems in Vertical Farming
  - Steam Turbines
    shutterstock
  - Snow Machines
    Fotolia
  - Desalination Process
  - Heating Ventilation Air-Conditioning Systems (HVAC
    shutterstock
  - Steel works
    Getty Images
  - Pulp and Paper
- Protection of Engines
  - Ships: Fuel Oil Systems in Ships
    Fotolia
  - Ships: Lube Oil Filtration Systems for Engines
    iStock
  - Power Plants: Fuel Oil and Lube Oil filtration
    123rf
  - Engines in Railways
    iStock
- Protection of Compressors and Turbines
- Protection of Machining & Cleaning Systems
  shutterstock
  - Bottle Washing machines
  - Crate Washers
  - Tunnel Pasteurisers
    Getty Images
  - Part Washers
    Getty Images
  - Machine Tools
    Fotolia
  - Boiler Feed Water Pump in Power Plants
    shutterstock
  - Heat Treatment
    shutterstock
  - Pelletizing Plants
    shutterstock
Service
Company
- Career
  - Beginners and experienced
  - Apprenticeships
  - Students
    shutterstock
  - School internship
- History
  BOLL & KIRCH
- Corporate Philosophy
  Adobe Stock
- Corporate Responsibility
  - Environmental Management
  - Work Safety Management
  - Boll Foundation
    Adobe Stock
  - Compliance
- Research & Development
  BOLL & KIRCH
- Quality Management
  BOLL & KIRCH
- Standards & Regulations
- References
Contact
- Locations
- Contact Request
Information
- News
- Information Material

BOLLFILTER Duplex Type BFD-P HD

Flange Connection

ASME or DIN
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