Type BM32
The KSH Type BM32 concrete bushing (plastic sleeve) is designed to be embedded during the casting of concrete filter bottoms using lost formwork—meaning the formwork isn’t removed after casting. The sleeve establishes accurate openings and receptacles for filter nozzles within the filter base. Its length is fully customizable to suit the required base or soil thickness. Manufactured by KSH Germany and supplied exclusively in New Zealand by Absorb It Ltd, the BM32 ensures you achieve both precision and long-term reliability in your filtration systems.
Features
Slot Size by Colour
- crop_square 0.2mm Slot Size - Ivory
- crop_square 0.3mm Slot Size - Green
- crop_square 0.35mm Slot Size - White
- crop_square 0.5mm Slot Size - Grey
- crop_square 0.7mm Slot Size - Yellow
- crop_square 0.8mm Slot Size - Blue
- crop_square 1.0mm Slot Size - Black
- crop_square 1.5mm Slot Size - Orange
- crop_square 2.0mm Slot Size - Green
Links
Downloads
Video
Watch the Orthos 4-Part Filter Nozzle Series
Deepen your understanding of filtration system design with the Orthos’ four-part video series — Filter Nozzles 101, 102, 103, and 104.
Explore everything from material selection and screen slot widths to pressure drop dynamics and advanced tailpipe construction for air scour systems.
Whether you’re an engineer, designer, or filtration specialist, these videos unpack the science behind high-performance nozzle systems — helping you optimise efficiency, durability, and performance in every project.