Flanged Long Radius Elbow

Nordfab manufactures ducting for use in dust, mist, and fume collection systems.

Our Flanged Long Radius Elbows (bends) allow airflow direction change in a line of dust collection ducting. Elbows are standard with Angle Flange (ANGFL) ends. Angle Flanges are attached loosely and retained via a vanstone lip.

All Nordfab® Elbows are available in 90°, 60°, 45°, and 30° bends.

Specify LR when ordering Long Radius Elbows
Galvanized steel construction
Available with custom hole pattern flanges
Other material gauges include 18, 16, 14, 12, and 10
Flange gaskets available

Contact Nordfab or your local Nordfab dealer for assistance with larger sizes and material / gauge options.

Specification

A. General Fabrication Requirements: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Ch. 3, "Round, Oval, and Flexible Duct," based on indicated static-pressure class unless otherwise indicated.
1. Construct ducts of galvanized sheet steel unless otherwise indicated. 304SS Optional.
2. Basis-of-Design Product: Subject to compliance with requirements, provide Nordfab Ducting, LLC; Quick Fit (QF) Duct.
B. Connection Joints: Joint types are fabricated in accordance with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."
1. Quick Fit Joints in Ducts 3 to 24 inches (76 to 510 mm) in diameter. Flange: Optional.
2. Flanged Joints in All Ducts Greater than 24 inches (610 mm) in diameter.
C. Longitudinal Seams: Seam types are fabricated in accordance with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-2, "Round Duct Longitudinal Seams," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."
1. Fabricated round ducts 3 to 24 inches (76 to 510 mm) in diameter to have laser-welded or plasma-welded longitudinal seams.
2. Fabricated round ducts above 24 inches (610 mm) in diameter to have plasma-welded longitudinal seams.