Armtec
Products
Stormwater Management
Downstream Defender®

Downstream Defender®

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.

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Downstream Defender®

The Downstream Defender's innovative design delivers high efficiency across a wide range of flows in a much smaller footprint than convential or other swirl-type devices. It is the perfect choice for any catchment likely to convey high quantities of contamination.

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Features

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

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Resources

For more specifications and installation information, download the complete product guide.

Quick Installation

" In my 35+ years of working on bridges, I was completely amazed at how quickly this 'Bridge-In-a-Box' was installed and how everything lined up to perfection. I would highly recommend this product to other MD's. "

Greg Griffin, Griffin Contracting Ltd.

Superior Support

" The Armtec team proved responsive and dealt promptly and effectively with engineering design issues as the project evolved. "

Herb Wilson, Vice President, Polaris Minerals

Trusted Partner

" Armtec proved to be an extremely competent, professional, and responsive partner throughout the design and construction schedule providing detailed shop drawings, technical support, timely fabrication and delivery, and construction oversight. It was our pleasure to have Armtec on the team, and we look forward to the opportunity to work together again. "

Robert H. Yauger, P.E., Gannet Flemming Inc.

Industry Benchmark

" The quality of material and after sales service provided by Armtec has been the catalyst for our long-standing relationship. Armtec’s CSP Pipe and Multi Plate Culverts are the benchmark standard within the industry. Armtec have strongly contributed toward the success of many of CME’s past projects and we will continue working together, improving infrastructure that benefits our local communities. "

Mark Thompson, Coastal Mountain Excavating Ltd.

Optimizing Productivity

" The Armtec Bridge Plate went together very well – productivity wise it was great! "

Gary Simson, Newport Structures Ltd.

Staying on Schedule

" Delivery of the Multi Plate tunnel components was timely and in accordance with our agreed schedule. I was very pleased with all aspects of the relationship with Armtec. "

Herb Wilson, Vice President, Polaris Minerals

Sustainable Solutions

" It was a pleasure dealing with Armtec in this complex project. Through the entire delivery process, from tender, design, installation and final approvals, all Armtec staff were extremely professional and always willing to assist. The end results for Westhills was a cost effective solution that respected the key environmental sensitivities of Parkdale Creek. Many thanks to the Armtec team! "

Matthew Pike, Development Engineer, Westhills Land Corp.

Helpful and Detailed

" Armtec has been very helpful on the Pueblo Viejo project, not only during the detailed engineering and construction, but as well during the feasibility phase, when not a lot of details were available ... I look forward to working with Armtec again on future Fluor Mining projects. "

Timothy Chan, Fluor Mining and Minerals

Project Services

Armtec provides complete engineering design services for structures and accompanying products. Provide us with your requirements and let us do the rest!