2025 Armtec Downstream Defender® 3,700 mm
- Year 2025
- Make Armtec
- Model Downstream Defender®
2025 Armtec Downstream Defender® 3,700 mm
2025 Armtec Downstream Defender® 3,700 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
- Accommodates change in outlet pipe direction without the need to construct a second manhole
- Treats the entire storm with no washout or untreated bypass flows
- Delivered to site as a precast concrete manhole chamber with pre-assembled internal components
Hydraulics
Hydraulic Flow
Peak Treatment Flow Rate: 1,076 L/s (38.0 cfs)
Dimensions
Dimensions
Diameter: 3,700 mm (12 ft) | Maximum Pipe Diameter: 900 mm (36 in) | Minimum Distance from Outlet Invert to Top of Rim: 1.71 m (5.6 ft)
Height
Standard Height from Outlet Invert to Sump Floor: 3.41 m (11.2 ft)
Capacities
Oil capacity
6,700 L (1,770 gal)
Storage Capacity
Sediment: 11.24 m3 (14.70 yd3)