Hydrodynamic separation devices - system design information
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Device Drainage area Entrance velocity Dimensions Layout Recommendations (physical location, off-line placement)
Vortechs TM by Contech <10 acres, recommended <5 acres with <1-acre impervious cover1, 2 1.6-25 cfs3 9 standard sizes: 9 ft x 3 ft to 18 ft x 12 ft3 Small footprints of predesigned models are suitable for urban areas and as a retrofit to existing networks. Can be online or off-line.3, 4
Continuous Deflective Separation (CDS) R by Contech <10 acres, recommended <5 acres with <1-acre impervious cover5, 6 Inline up to 6 cfs, offline precast modules 3-62 cfs, offline cast in place up to 300 cfs7, 8 16 models: 3-10 ft diameter8 Small footprints of predesigned models are suitable for urban areas and as a retrofit to existing networks9
Downstream Defender TM H.I.L. Technology <10 acres, recommended <5 acres with <1-acre impervious cover10, 11 1.6-24 cfs for 50% removal of 100-micron particles, peak flow rate 3-38 cfs12 Predesigned manhole sizes: 4-12 ft in diameter, custom: up to 40 ft in diameter; Depth: 3.33 - 9.42 ft13, 14 Small footprints of predesigned models are suitable for urban areas and as a retrofit to existing networks15
First Defense R by Hydro International 0.85-6.0 cfs for 50% TSS Removal16 Six models: Diameter= 3-8 ft, Depth = 3.75-8 ft16 At point of entry into drainage line, sites constrained by space, topography, or drainage profiles, and retrofit installations16
Stormceptor R by Imbrium or Rinker Materials Varies from 1 acre to 150 acres depending on model, common in-line models can treat 0.55-6.7 acres impervious cover17, 18 8 prefabricated in-line models, 1 48-in diameter inlet model, large-scale MAX model18 Small footprints of predesigned models are suitable for urban areas and as a retrofit to existing networks. Extended Oil Storage and Oil and Sand Removal Systems available for hot spot areas. Can be inlet or in-line, single or in series19, 20
Barracuda by BaySaver Recommended <5 acres with <1-acre impervious cover21 50% TSS removal: 1.25 cfs, Maximum: 6.25 cfs22 6 manhole models: 36-120 in diameters22 Small footprints of predesigned models are suitable for urban areas and as a retrofit to existing networks
Dual Vortex Separator by OldCastle 0.56 – 9 cfs23 Multiple sizes for both square manhole and square grated inlet models: 36 in to 144 in diameter24 Small footprints of predesigned models are suitable for urban areas and as a retrofit to existing networks. Can be online or offline24
SciClone TM by BioClean WQ flow rate = 0.7-6.3 cfs25 Twelve models: 3-14 ft diameter, storage capacity 11-231 cu ft26 Small footprints of predesigned models are suitable for urban areas and as a retrofit to existing networks27
StormSettler by StormTrap Dependent on site characteristics and rainfall Treatment flow of 0.79-12.7 cfs. Maximum flow rate dependent on inlet/outlet pipe size Models available include 3ft, 4ft, 5ft, 6ft, 7ft, 8ft, 10ft, and 12ft At the inlet to drainage systems, sites constrained by topography or space, sites constrained by hydraulic grade line, retrofits to existing stormwater systems

Reference links: 1; 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27

This page was last edited on 16 January 2025, at 17:45.