Published · Kuohai Editorial
Main point
A duct fabrication review should connect the approved route with the actual equipment interfaces. Matching a nominal duct diameter is not a complete check of the installation.
Information to record
Mark flange patterns, connection orientation, support locations and inspection openings on the drawing. Identify the measurements confirmed on site and those still estimated. Keep duct material and construction requirements linked to the design conditions rather than to a general fabrication habit.
Review and acceptance
Use a revision-controlled interface list for the hood, collector, fan and discharge stack connections. Agree inspection criteria for fabricated sections and document site changes. Ask the designer to review any routing change that alters the original system basis before it becomes permanent.
FAQ: Does a site-fit change need a record?
Yes. Update the final arrangement and identify any design review required.
FAQ: Can supports be assumed to be included?
State support design, supply and installation responsibilities explicitly.
Technical sources and editorial note
Independently written from the archived topic in [1], with related engineering context checked against [2]. The survey, purchasing and review steps are editorial guidance; project-specific requirements need confirmation. Existing photographs are equipment references. Editorial review updated 1 November 2026.
- [1] Kuohai — Archived technical article, 2022-07-12
- [2] IAC — Filter cage construction and specifications
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Use this guide to prepare for an equipment discussion. Confirm selection and operating requirements against your actual process and site conditions.