Series 10 | 1½ Hour Rated

Combination Fire and Smoke Damper

UL Classified UL 555 and 555S – Combination Fire and Smoke Damper with 1½ Hour Rating, for use in installations rated less than three hours
Meets NFPA Standard 90A ICC Building Codes

Specifications:

Leakage Classes

Class 1 – Ultra-Low
Class 2 – Low

Material

Galvanized Steel

Temperature Ratings

250° Rated – Standard
350° Rated – Optional

Thermal Disk Ratings

165° – Standard
212° – Optional

Orientation

Available for Vertical or Horizontal Installations

22Ga Optional Sleeves

17” Sleeve – Standard
20” or 24” Lengths – Optional

Sizes

Available in Single-Section Sizes up to 36” x 48”
Available in Multi-Section Sized up to 144” x 48”

Blades

16Ga Galvanized 3 “V” Formed for Rigidity
Opposed Operation
Double Yoke Kneelock for Increased Stability

Airflow Pressure Ratings

Vertical and Horizontal = 2,000 FPM at 4” W.G. Maximum

Options

Transitions: Rectangle, Round, Oval, or Special
Actuator Type: Electrical
Actuator Location: External or Internal