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Flanged Elbow

Flanged Elbow

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

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

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

  • Long Radius Elbows available
  • Galvanized steel or 304SS 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.
    Technical specification
    • Unique ref.us-flanged-elbow
    • Product familyFlanged Ducting
    • Product groupElbows
    • TypeObject (single object)
    • Date of publishing2024-05-08
    • Edition number1
    Related
    • Material mainGalvanized steel
    • Material secondaryStainless steel 304
    • Designed inUnited States
    • Manufactured inUnited States
    Classification
    • BIMobject CategoryHVAC - Dust Collection
    • IFC classificationDuct Fitting
    • ETIM CodeEG015540
    • ETIM NameFittings, flanges and connectors
    • Uniclass 2015 CodePr_65_65_25
    • Uniclass 2015 DescriptionDuctwork and fittings
    • CSI MasterFormat 2014 Code23 31 13.19
    • CSI MasterFormat 2014 TitleMetal Duct Fittings
    • OmniClass Number23-33 49 00
    • OmniClass TitleHVAC Ductwork

    Region availability

    North America
    Belize
    Bermuda
    British Virgin Islands
    Canada
    Collectivity of Saint Martin
    Costa Rica
    Mexico
    Panama
    Puerto Rico
    United States