Selecting the right duct material is critical for chemical and wastewater applications where corrosive fumes, moisture, and harsh operating conditions can shorten system life. This guide compares galvanized steel, stainless steel, and flanged ductwork, helping engineers, contractors, and plant managers choose the best solution for long-term performance, reliability, and corrosion resistance.
T-Branches
T-branches are called Ts because the line enters the main line at 90 degrees—forming a 'T'—and are often used in positive systems where the air is being pushed.
Ts are not recommended for negative systems as they increase static pressure to the point where air can slide by the sideline and only pull from the straight end where the flow is "easier."
All branches are 18 gauge or heavier.
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