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LT90 Dryer-Ell - Long-turn Dryer Elbow
LT90 Dryer-Ell - Long-turn Dryer Elbow
LT90 Dryer-Ell - Long-turn Dryer Elbow
LT90 Dryer-Ell - Long-turn Dryer Elbow
LT90 Dryer-Ell - Long-turn Dryer Elbow
LT90 Dryer-Ell - Long-turn Dryer Elbow
LT90 Dryer-Ell - Long-turn Dryer Elbow
    InOvate

    LT90 Dryer-Ell - Long-turn Dryer Elbow

    Long-turn Dryer Duct Elbows

    Dryer-Ells are ten inch radius, smooth interior elbows that reclaim allowable duct length. Based on ASHRAE methodology for calculating friction loss, they can be measured the same as straight pipe. This removes the run length penalty most code requires for every elbow.

    Adopted in ICC International Mechanical and Residential Code, Dryer-Ells can be the perfect solution for length-of-run issues. The Dryer-Ell increases dryer efficiency, and--when replacing a restrictive small radius elbow--it can be used as an alternative to expensive booster fans.

    Model LT90 delivers improved airflow efficiency for ninety degree turns. It is a straight pipe equivalent for most building code including 2009 and 2012 IMC and IRC. 

    Dryer-Ell LT90 has a four-inch diameter (the standard for dryer duct pipe) and an eighteen-inch overall length. Because it is code approved to eliminate run-length penalties, the LT90 is very useful for taking advantage of the maximum allowable exhaust duct length. Its longer radius and smooth interior improve dryer performance and are 500% more airflow efficient than sectioned elbows.

    Specification
    • Dimensions: 90° Turn, 4" Diameter10" Radius, 18" Overall Length

      Performance Data

      For Use:

      • Dryer exhaust fitting (attic or floor joists)
      • Replacement to the standard 4" elbow
      • Efficient elbows for dryer venting

      Materials:

      • Deep drawn process made from .018" (26 gauge) aluminized steel
      • Distinct male and female ends
      • Engineering evaluation by Underwriters Laboratories proved the 90° elbow to be 500% more efficient than typical 3.5" radius elbows

      General Information

      Benefits:

      • Larger radius and smooth interior
      • Zero code required run-length reduction
      • Increases dryer efficiency
      • Replaces restrictive 3.5" radius elbow
      • Alternative to a booster fan

      Features:

      • 2-piece construction for easy assembly
      • Fastening tabs for hook and twist assembly
      • Notch for exact snaplock pipe fit
      • Secondary securing accomplished with pre-drilled screw holes

       Keywords: hvac, hvac duct, hvac system, duct, duct fitting, duct support, duct ventilation, ventilation, hvac vent, dryer vent, dryer vent box, dryer vent wall, dryer vent roof, dryer vent wall box, dryer ventilation, dryer vents, dryer exhaust vent, exterior dryer vent, plastic hood dryer vent, wall dryer vent

    Technical specification
    • Unique ref.lt90_dryer-ell-long-turn-dryer-elbow
    • Product familyDryer-Ell
    • Product groupDryer-Ell
    • TypeObject (single object)
    • Date of publishing2021-05-03
    • Edition number1
    Related
    • Designed inUnited States
    • Manufactured inUnited States
    Classification
    • BIMobject CategoryHVAC - Ductwork
    • IFC classificationDuct Fitting
    • ETIM CodeEG015540
    • ETIM NameFittings, flanges and connectors
    • UNSPSC nameDucts
    • UNSPSC code401419
    • Uniclass 2015 CodePr_65_65_25
    • Uniclass 2015 DescriptionDuctwork and fittings
    • CSI MasterFormat 2014 Code23 33 00
    • CSI MasterFormat 2014 TitleAir Duct Accessories
    • OmniClass Number23-33 49 29 11
    • OmniClass TitleAccess Fittings for Air Ductwork

    Region availability

    North America
    United States