FS Series Fire/Smoke Damper

Fire/Smoke Dampers with Internally and Externally Mounted Actuators

Standard Features

Fire rated for 1-1/2 hours (UL-555)
Leakage rated as Class I, II, III or IV (UL 555S)
Temperature rated at 250-degrees F or 350-degrees F (UL555S)
Provided with a galvanized steel sleeve
Qualified electric or pneumatic actuators
Patented Pneumatic Emergency Relief Valve (P.E.R.V.) feature on standard pneumatic models

Optional Features

"Sens-O-Therm" Thermally Reopenable Temperature Sensing System
Dual position indicator package
24 Volt electric actuators
Type "C" housing for round or oval ductwork
Heavy duty sleeve thicknesses
Longer sleeve lengths
212-degree F thermal disc (electric models) or fusible link (pneumatic models)

New! Integral Sleeve Design (Alternate)

ABI is pleased to produce another industry first:
Combination Fire/Smoke Dampers with an Integral Sleeve

Advantages

A constant blade stop height of 3/4" for maximum pressure drop
A single blade (max. 24" x 16") for maximum free area
Shorter sleeve protrusion on the actuator side (by 3")
Reduced size actuator envelope dimensions
An inexpensive 24 VAC, 250-degree F Multi-Products actuator
An inexpensive 120 VAC, 350-degree F Multi-Products actuator
Dual direction air flow
Invertability - If the installation site requires the actuator to be on the other side, just turn it over!
Lighter (about 15%) and easier to install

Downloadable Literature

UL STANDARD FOR SAFETY 555S LEAKAGE RATED DAMPERS FOR USE IN SMOKE CONTROL SYSTEMS

All FS Series Fire/Smoke Damper/Actuator Assembly Models have successfully passed the rigorous tests required for all UL 555S rated products. Underwriters Laboratories requires that all UL 555S rated dampers be accompanied with their matching UL approved, factory supplied actuators.