Zoro Homepage
Clipboard Icon Quick Order
Cart Icon 0 Cart
  1. Home
  2. /
  3. Heating & Cooling
  4. /
  5. Ventilation
  6. /
  7. Dampers
  8. /
  9. Fire and Smoke Dampers
  10. /
  11. Round Smoke Damper, 24V, 8-1/4 In. D
Dayton Round Smoke Damper, 24V, 8-1/4 In. D 3HGH3 - main

Round Smoke Damper, 24V, 8-1/4 In. D

  • Mfr # 3HGH3

  • Zoro # G2933147

product price: $474.99
/ea
Free Shipping & Returns

Key Features

Mounting Type
Vertical/Horizontal
Includes
Factory Mounted Actuator
Voltage
24 V
Depth
8 1/4 in
Material
Galvanized Steel
See all product information
Get a 10% off coupon
Free 30-day returns
Return Policy
Get 30 days to pay with Net 30
Apply Now
Real support from real people
Contact our U.S. based team

Specifications

Product Information

MFR #
3HGH3
Zoro #
G2933147
UPC #
190735289013
Country of Origin
United States

Dimensions

Depth
8 1/4 in
Actual Damper Sz. Dia.
7 7/8 in
Nominal Duct Dia.
8 in
Rough Opening Width
8 in
Overall Height
7 7/8 in
Overall Width
8 1/4 in
For Nominal Duct Diameter
8 in
Overall Diameter
7 7/8 in
Frame Material Thickness
20 ga
Rough Opening Diameter
8 in
Blade Material Thickness
14 ga
Overall Length
8 1/8 in

Details

Item
Round 7.9"dia Motorized Smoke Damper
Mounting Type
Vertical/Horizontal
Includes
Factory Mounted Actuator
Voltage
24 V
Material
Galvanized Steel
Damper Item
Motorized Smoke Damper
Hz
60
Damper Shape
Round
Blade
14 ga
Phase
1
Frame
20 ga
Pressure Differential Max.
4 in wg
Max. Velocity
3,000 fpm
Free Area
43.3 sq in
Standards
CSFM; IBC; NFPA 90A,92,101,105; UL 555S
Seals
Silicone Rubber
Max. Temp.
350 Degrees F
Mounting Position
Horizontal
Closure Type
Motorized
Airflow Direction
Horizontal; Vertical
Damper Application
Smoke
Maximum Air Pressure
4 in wg
Blade Seal Material
Silicone
Rough Opening Shape
Round
Closure Velocity Rating
3,000 fpm
Number of Panels
1
ACMA Leakage Class
2
Damper Type
Dynamic
Blade Type
Butterfly
Frame Material
Galvanized Steel
Frame Less Flange
50.3 sq in
Blade Material
Galvanized Steel
Frequency
60 Hz
Nameplate Voltage
24V AC
Switch Action
Normally Closed
Includes Motor
Yes
Fusible Link Temperature
350 Degrees F
For Duct Shape
Round
Maximum Temperature Rating
350 Degrees F
For Air Type
Emergency Smoke
Closure Pressure Rating
4 in wc
Maximum Air Velocity
3000 fpm

Description

Round 7.9 In.dia Motorized Smoke Damper, For Nominal Duct Diameter 8 in, Damper Application Smoke, Number of Panels 1, Overall Height 7 7/8 in, Overall Length 8 1/8 in, Rough Opening Shape Round, For Duct Shape Round, Overall Width 8 1/4 in, Frame Material Thickness 20 ga, Blade Material Galvanized Steel, Maximum Air Pressure 4 in wg, Overall Diameter 7 7/8 in, Rough Opening Width 8 in, Damper Type Dynamic, Maximum Air Velocity 3000 fpm, Nameplate Voltage 24V AC, Rough Opening Diameter 8 in

Ratings & Reviews

3 Reasons You Can Count On Us

  • Supplies for every job.

    Supplies for every job.

    10 million items and the exact one you need.

  • When you need it fast, count on Zoro!

    When you need it fast, count on Zoro!

    2 million products ship in 1 day.

  • Stretch your budget further.

    Stretch your budget further.

    Everyday low prices on the brands you love.

Explore More Products