Skip Content

Round Fire/Smoke Damper,24V,15-5/8 In. D close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
Megaphone How can we improve our Product Images?

Round Fire/Smoke Damper, 24V, 15-5/8 In. D

Price $617.50 / each

Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Confirm ZIP Code to determine availability.


Invalid Zip Code


Ship to: (Change)


Invalid Zip Code

  • Item # 3HGL2
  • Mfr. Model # 3HGL2
  • UNSPSC # 40101504
  • Catalog Page # 4311
  • Shipping Weight 30.15 lbs.
Country of Origin USA Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • Item Motorized Fire/Smoke Damper
  • Shape Round
  • Actual Damper Sz. Dia. 15-7/8"
  • Material Galvanized Steel
  • Frame 20 ga.
  • Blade 14 ga.
  • Fire Rated 1-1/2 hr.
  • Max. Temp. 350 Degrees F
  • Max. Velocity 3000 fpm
  • Pressure Differential Max. 4" wg
  • Seals Extruded Silicone Rubber Blade
  • Voltage 24
  • Hz 60
  • Phase 1
  • Free Area 172.79 sq. in.
  • Nominal Duct Dia. 16"
  • Depth 15-5/8"
  • Mounting Type Vertical/Horizontal
  • Standards UL Standard 555 and 555S, NFPA 80, 90A, 92A, 92B, 101 and 105, IBC, ICBO, CSFM, NYC MEA,Class II Leakage
  • Includes Stainless Steel Closure Spring, UL Fusible Link, Factory Mounted Actuator
Megaphone How can we improve our Technical Specifications?

Compliance and Restrictions



This motorized damper is designed for use in HVAC system applications where emergency fire and smoke control is required. It includes a 165°F fusible link and a factory-installed actuator. Upon temperature elevation, the dynamic damper closes automatically to prevent the spread of fire and smoke.

Alternate Search Terms

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.