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Extraction walls and extraction panels for larger coverage areas
Extraction walls and panels are suitable for workstations where emissions are generated over a larger area and a localized hood would need to be repositioned regularly. The contaminated air is captured over a larger area and directed in a controlled manner to the filter or extraction system.
Typical product groups
ā freestanding or permanently installed extraction walls
ā Compact extraction panels
ā Solutions with an integrated or external fan
ā Accessories and connection components
ā Configuration options for different working widths
Coverage Area and Working Distance
Generally, the larger the coverage area and the greater the distance from the process, the higher the required flow rate. The extraction wall should therefore be positioned as close as possible to the emission area and should follow the natural direction of movement of smoke or dust.
Integration into the extraction system
For externally connected systems, the wall, piping network, filter, and fan must be considered together. The actual available flow rate is determined by the operating point of the entire system and not solely by the fanās maximum rating.
Hereās what you should look for when making your selection
ā Width and height of the work area
ā Type of contaminant and direction of spread
ā Working distance from the target surface
ā Required flow rate and pressure drop
ā Filter and Fan Design
ā Sparks, coarse particles, and special safety requirements
FAQ
When is an extraction wall more suitable than an extraction arm?
For larger or changing work areas where it is difficult to consistently position a spot hood.
Is a larger wall automatically better?
No. As the coverage area increases, the required air flow rate usually increases as well.
Can an extraction wall be connected to a central filtration unit?
Yes, provided that the system delivers the required flow rate under actual pressure loss conditions.
What should be considered regarding sparks?
Pre-separator, filtration technology, and the safety concept must be tailored to the process.
Advice on Extraction Walls and Panels
Factors to consider when selecting equipment include the work area, process, contaminant, working distance, and data on the existing extraction technology.
