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ALUMINUM BACKDRAFT DAMPER, FOR 20 IN FAN, SINGLE PANEL, 25 X 25 X 2 IN, FELT

ALUMINUM BACKDRAFT DAMPER, FOR 20 IN FAN, SINGLE PANEL, 25 X 25 X 2 IN, FELT

DAYTON

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Available only while supplies last. Quantities may be limited. The Item is FINAL SALE.
ALUMINUM BACKDRAFT DAMPER, FOR 20 IN FAN, SINGLE PANEL, 25 X 25 X 2 IN, FELT

ALUMINUM BACKDRAFT DAMPER, FOR 20 IN FAN, SINGLE PANEL, 25 X 25 X 2 IN, FELT

DAYTON

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $110.30 / EACH

EHC: EHC :

Compliance and Restrictions

  • None

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https://catalogue.grainger.ca/?hybris=true
  • Item # DTN4HX67
  • Mfr. Model # 4HX67
  • UNSPSC # 40101502
  • CATALOGUE PAGE # 1859
  • Shipping Weight 9.0 lbs

Product Details

Back draft damper, 123 x 23 inches, outside flange 25 x 25 inches, roof mount , G-90 galvanized steel frame, 2 inch deep with 1 inch flange, felted aluminum blades for quiet operation.

Technical Specs

  • ItemManual Damper
  • Frame MaterialGalvanized Steel
  • Maximum Air Velocity2,250 fpm
  • Rough Opening Diameter23 1/2 in
  • Fits Fan Diameter20 in
  • Free Area2.9 sq ft
  • Frame Material Thickness20 ga
  • Frame Depth2 in
  • Maximum Pressure1 in wc
  • Blade MaterialAluminum
  • Single Acting/Double ActingSingle Acting
  • Maximum Ambient Temperature180 Degrees F
  • Flange Width1 in
  • Closure Velocity Rating2,250 fpm
  • Switch ActionNormally Closed
  • IncludesPre-Punched Conduit Hole Knock-Out, Felted Edges for Quiet Operation
  • Flange TypeRear Flange
  • Airflow DirectionVertical
  • Bushing MaterialNylon
  • Damper Application Backdraft
  • Number of Panels 1
  • Overall Height 25 in
  • Rough Opening Shape Square
  • For Duct Shape Square
  • Overall Width 25 in
  • Overall Length 4 1/2 in
  • Rough Opening Length 22 1/2 in
  • Rough Opening Width 23.5 in
  • Damper Type Static
  • Blade Type Flat Blade
  • Closure Type Gravity
  • Blade Orientation Parallel Blades
  • Frame Less Flange 23 sq in
  • Counterbalanced Not Counterbalanced
  • Mounting Location Ceiling
  • Blade Seal Material Felt
  • Mounting Position Horizontal
  • Country of Origin United States (subject to change)

Compliance and Restrictions

  • None

SDS Document Not Found

For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

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