topic Re: Looking to get accurate dimensions on S&D Ductwork in Fabrication CADmep Forum

Looking to get accurate dimensions on S&D Ductwork

nathanmGFAWA — Mon, 30 May 2022 18:19:49 GMT

Iam very new with everything and am looking to get accurate dimensions on ductwork on Revit, Iam using Fab CAD MEP to modify and am curious what type of settings do I need to adjust.

I want to use Standing S&D, with the connecting ends to be 1" overlapping.

Help would be much appreciated.

Re: Looking to get accurate dimensions on S&D Ductwork

Mike_Arcari — Fri, 17 Jun 2022 07:02:18 GMT

set your turnover to 1"

that should shorten your duct by 1" visually but leave the material in place

Re: Looking to get accurate dimensions on S&D Ductwork

langnerfrancesco — Tue, 05 Jul 2022 11:02:09 GMT

There are many different methods used to design ventilation systems, the most common ways being:

Velocity reduction method: (Residential or small commercial installations)
Equal friction method: (Medium to large sized commercial installations)
Static regain: Very large installations (concert halls, airports and industrial)

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