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FRP Baffle Walls

Fiberglass (FRP) Baffle Walls are rigid panels used to partition or direct flow within treatment basins. Unlike wood or concrete, FRP baffles provide “zero maintenance” and “superior corrosion resistance”. Our pultruded FRP baffle panels (AquaSpan® or equivalent) are NSF/ANSI 61 certified for potable water, making them ideal for clarifiers, flocculation channels, aeration basins and clearwells. By increasing retention time and preventing short-circuiting, baffle walls significantly improve treatment performance.

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Key Features

  • Pultruded Panels: High-glass-content fiberglass boards (1–2 in. thick) with built-in flanges.
  • Solid or Perforated: Panels can have flow holes to optimize mixing or be solid for strict separation.
  • Lightweight Yet Strong: Up to 10× lighter than concrete panels, yet able to span 10–20 ft between supports.
  • Prefabricated Assemblies: Complete support frames and access doors can be included for easy installation.

Benefits

  • Improved Flow Control: Partitioning ensures uniform distribution (e.g. over multi-trickling filters) and creates plug-flow conditions for better flocculation.
  • Rapid Installation: Panels bolt together quickly in the field; no curing time. Perfect for retrofits without tank downtime.
  • Long Life: FRP baffles won’t rot, corrode or leach (unlike wood or metal), providing decades of service with no coating needed.

Applications

Chlorine contact basins, secondary clarifiers (density current baffles), flocculation channels, aeration basins (anoxic zones), and clearwater wells. Essentially any basin requiring flow guidance or zone separation.


Technical Specifications

Panels typically 24″–48″ wide, heights up to 12 m. Material: NSF-61 vinyl ester or polyester FRP. Support systems available in FRP or stainless steel. Baffles can be engineered to withstand design hydraulic heads (see ANSI/AWWA D115 for submerged flow loads).


Unique Selling Points

Our baffle wall systems combine design flexibility with proven durability. They are available in solid or perforated form, and we can include built-in access hatches. Fiberglass Fabricators reports their systems achieve “easy installation” and “long, maintenance-free service-life”. Ultimately, FRP baffles lower lifecycle cost while maintaining full structural strength and environmental compliance.