2025 Armtec Downstream Defender® 1,800 mm

Information

2025 Armtec Downstream Defender® 1,800 mm

The Downstream Defender® is an advanced vortex separator used to treat stormwater runoff in pretreatment or stand-alone applications. Its unique flow-modifying internal components distinguish the Downstream Defender® from conventional and simple swirl separators that typically bypass untreated peak flows to prevent washout of captured pollutants. The Downstream Defender® treats the entire storm with no washout or untreated bypass flows.

Features may include:

Environmental Protection
  • Captures and retains a wide range of Total Suspended Solids (TSS), floatable trash and petroleum products
Versatile
  • Accommodates change in outlet pipe direction without the need to construct a second manhole
Quality
  • Treats the entire storm with no washout or untreated bypass flows
Ease of Installation
  • Delivered to site as a precast concrete manhole chamber with pre-assembled internal components

Photos

Highlights

  • Cobden, Ontario
  • 2025
  • Armtec
  • Downstream Defender® 1,800 mm
  • Available
  • Standard Height from Outlet Invert to Sump Floor: 1.80 m (5.9 ft)

Specifications

  • 2025
  • Armtec
  • Downstream Defender®
  • 1,800 mm
  • Construction
  • Peak Treatment Flow Rate: 227 L/s (8.0 cfs)
  • Diameter: 1,800 mm (6 ft) | Maximum Pipe Diameter: 450 mm (18 in) | Minimum Distance from Outlet Invert to Top of Rim: 0.98 m (3.2 ft)
  • Standard Height from Outlet Invert to Sump Floor: 1.80 m (5.9 ft)
  • 818 L (216 gal)
  • Sediment: 1.61 m3 (2.10 yd3)