Industrial ductwork & fittings
The ductwork is where most underperforming systems actually fail, and it is the part nobody looks at. Undersized runs drop dust and accumulate it. Oversized runs never reach conveying velocity. Both are decided before anything is cut.
Ductwork System Design
DCG designs industrial ductwork systems around your dust collection equipment, process requirements, airflow needs, and facility layout. From duct routing and sizing to hood connections and pickup points, we develop practical layouts that support effective material capture and integrate with your overall dust collection or industrial ventilation system.
Ductwork & Fitting Selection
Every system requires the right ductwork and fittings to support its intended performance. DCG supplies ductwork components tailored to your application, including elbows, transitions, branches, reducers, and specialty fittings. We consider airflow, material characteristics, and system requirements to help create an efficient, reliable solution.
Custom Fabrication & System Integration
DCG fabricates custom ductwork and fittings to meet the specific requirements of your process and facility. Our in-house fabrication capabilities allow us to coordinate dimensions, connection points, equipment interfaces, and installation requirements, helping ensure the components work together as part of a complete system.
From Fabrication Through Installation
With engineering, custom sheet metal fabrication, and mechanical installation capabilities, DCG provides a coordinated approach to ductwork projects. From system layout and component fabrication through field installation and equipment integration, we help deliver a complete solution tailored to your facility.
Conveying velocity decides the diameter
The duct is sized so the air stays fast enough to keep your material in suspension all the way to the collector — roughly 3,500 to 4,500 feet per minute for most industrial dust, higher for heavy or moist material. Below that the dust drops out and builds inside the duct, which for combustible material is a hazard sitting over your production floor.
That is a per-material calculation, not a rule of thumb, and it is the reason we size the system before we quote the steel.
Clamp-together and welded, in the right places
The clamp-together spiral goes in fast and comes apart for cleaning and modification, which suits most plants. Welded seams go where the application needs them — abrasive material, higher pressure, or a run you do not want anyone opening casually.
We build in the gauge the material and the standard require rather than the gauge that makes the bid look good. Light commercial duct on abrasive dust wears through at the elbows, and it does it on the outside of the bend where nobody is looking.
Fittings are where the pressure loss hides
A tight elbow, a badly angled branch entry or an abrupt transition costs static pressure on every hour the system runs, and those losses compound across a big system into a fan that cannot do its job. Long-radius elbows, branch entries at shallow angles, and gradual transitions are cheap at fabrication and expensive to retrofit.
Blast gates let you balance the system and shut down branches that are not in use, which returns airflow to the ones that are.