Dayton
Dayton 20CK18 Sleeved Fire Damper Square 8x8 165F
Square fire damper with sleeve fits 8-inch ducts, galvanised steel construction, 165 °F fusible link and 1½-hour fire rating
- 1-1/2 hour fire rating protects duct penetrations
- 165 °F fusible link triggers automatic closure
- 22-gauge galvanized steel resists corrosion and heat
- 241 sq ft free area maintains airflow efficiency
- UL 555, NFPA 80/90A/101, IBC, CSFM, NYC MEA compliance
Application and Audience
The Dayton 20CK18 is a sleeved fire damper designed for low-pressure HVAC systems. It serves contractors and facility managers who need a square damper with a 165-degree F fusible link and a one-and-a-half-hour fire rating.
Build Integration
The unit fits an 8-inch by 8-inch nominal duct opening and provides a free area of 0.241 square feet. Its 22-gauge galvanized steel construction suits vertical dynamic mounting, while the sleeve simplifies connection to the surrounding ductwork.
Bundled Components
A recommended retaining angle is specified separately to complete the installation. The damper meets UL 555, NFPA 80, 90A and 101, IBC, CSFM and NYC MEA standards for code compliance.
Highlights
- 1-1/2 hour fire rating protects duct penetrations
- 165 °F fusible link triggers automatic closure
- 22-gauge galvanized steel resists corrosion and heat
- 241 sq ft free area maintains airflow efficiency
- UL 555, NFPA 80/90A/101, IBC, CSFM, NYC MEA compliance
Specifications
| Brand | DAYTON |
|---|
Questions about this item
How long does the 165 F fusible link hold before releasing during a fire?
The link is rated for a 1-1/2 hour fire resistance period under UL 555 testing.
What surface temperature should I expect on the 22 ga. galvanized steel sleeve after continuous airflow?
The damper is designed for low-pressure HVAC systems and the steel sleeve remains at near-ambient temperature during normal operation.
Which retaining angle is required to mount this 8 x 8 square damper in a fire-rated barrier?
The manufacturer recommends the 2TGG5 retaining angle for proper installation.
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