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Flanges can be loose (vanstoned) or welded to the pipe/components depending on your needs!

We provide duct with flanges (angle rings) in black iron, galvanized or SS and with or without holes. The duct to which these flanges are attached it available in sizes 3" and up, and also in black iron, galvanized or SS. Construction methods range from lock seamed pipe and mechanically lock elbows in lighter gauges to a fully welded product in heavy gauges (even up to 1/4") - all depending upon the requirements of your application.
Flanged Ducts
Unit of Measure
1 2 

Item #

Item Name

Diameter

Type

Materials

Finish

FP03 N/A 3 Inch (in) Diameter Flanged Duct N/A 3 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP04 N/A 4 Inch (in) Diameter Flanged Duct N/A 4 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP05 N/A 5 Inch (in) Diameter Flanged Duct N/A 5 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP06 N/A 6 Inch (in) Diameter Flanged Duct N/A 6 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP07 N/A 7 Inch (in) Diameter Flanged Duct N/A 7 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP08 N/A 8 Inch (in) Diameter Flanged Duct N/A 8 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP09 N/A 9 Inch (in) Diameter Flanged Duct N/A 9 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP10 N/A 10 Inch (in) Diameter Flanged Duct N/A 10 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP11 N/A 11 Inch (in) Diameter Flanged Duct N/A 11 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP12 N/A 12 Inch (in) Diameter Flanged Duct N/A 12 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP13 N/A 13 Inch (in) Diameter Flanged Duct N/A 13 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP14 N/A 14 Inch (in) Diameter Flanged Duct N/A 14 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP15 N/A 15 Inch (in) Diameter Flanged Duct N/A 15 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP16 N/A 16 Inch (in) Diameter Flanged Duct N/A 16 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP17 N/A 17 Inch (in) Diameter Flanged Duct N/A 17 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP18 N/A 18 Inch (in) Diameter Flanged Duct N/A 18 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP19 N/A 19 Inch (in) Diameter Flanged Duct N/A 19 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP20 N/A 20 Inch (in) Diameter Flanged Duct N/A 20 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP22 N/A 22 Inch (in) Diameter Flanged Duct N/A 22 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP24 N/A 24 Inch (in) Diameter Flanged Duct N/A 24 in N/A Lockseamed N/A Available in Galvanized or SS N/A Galvanized
FP26 N/A 26 Inch (in) Diameter Flanged Duct N/A 26 in N/A Welded Seam N/A Available in Galvanized or SS N/A Galvanized
FP28 N/A 28 Inch (in) Diameter Flanged Duct N/A 28 in N/A Welded Seam N/A Available in Galvanized or SS N/A Galvanized
FP30 N/A 30 Inch (in) Diameter Flanged Duct N/A 30 in N/A Welded Seam N/A Available in Galvanized or SS N/A Galvanized
FP32 N/A 32 Inch (in) Diameter Flanged Duct N/A 32 in N/A Welded Seam N/A Available in Galvanized or SS N/A Galvanized
FP34 N/A 34 Inch (in) Diameter Flanged Duct N/A 34 in N/A Welded Seam N/A Available in Galvanized or SS N/A Galvanized
Unit of Measure
1 2