Combination Fire Smoke Dampers | Greenheck
Combination fire and smoke dampers are used in heating, ventilation, and air conditioning (HVAC) to protect duct and air transfer opening penetrations through fire smoke rated construction (walls and floors). These dampers are UL 555 and UL 555S classified.
Basics of Fire and Smoke Damper Installations - NFPA
2021年8月12日 · What is a fire or smoke damper, where are they installed, and how should they be installed?
Fire/Smoke Dampers | nailor.com
Model Series 1220M and 1220M-3 "3-in-1" Modulating Fire/Smoke Dampers have been engineered to provide premium containment in fire and smoke conditions. The addition of volume control using a modulating actuator eliminates the need and cost of a separate control damper.
Fire Dampers and Smoke Dampers - MEP Academy
2023年10月21日 · Smoke Damper or Combination Fire/Smoke Damper. The primary function of Smoke dampers according to the NFPA is to control the movement of smoke in dynamic air distribution systems, and they reduce the possibility of …
How Smoke Dampers Work During a Fire - Belimo
2022年9月27日 · Smoke dampers are specifically designed and installed in the ductwork and air transfer openings to prevent the passage of smoke between sections. Smoke dampers operate when smoke is detected. The smoke detectors are usually wired to a central alarm panel where an alarm will send a signal to an actuator attached to the smoke damper. The actuator ...
Fire & Smoke Dampers - Grainger Industrial Supply
Fire and smoke dampers automatically close when temperatures reach a certain point to prevent the spread of smoke and fire through the duct system. They use a fusible link that melts above a specific temperature, releasing a spring-loaded damper or blade that blocks smoke and fire from moving through the duct.
FSD35 : UL 555/555S 1.5 hr./Class III, V-Groove Blade, 2,000
The FSD35 Combination Fire/Smoke Damper is both UL555 and UL555S Classified. It is rated as a 1-1/2 hour fire damper and a Leakage Class III Smoke damper. It features: Triple V-Groove Blades. Maximum rating of 2,000 fpm and 4" w.g. UL approval for dual directional airflow.
Smoke Damper vs Fire Damper: Key Differences | AWV
2024年10月16日 · Smoke dampers are designed to prevent the spread of smoke, while fire dampers are designed to stop the propagation of fire. Smoke dampers will have tighter seals to minimize leakage when fully closed. Look for the damper’s …
Combination Fire Smoke Dampers - United Enertech Corporation
United Enertech's combination fire/smoke dampers provide effective smoke and flame control in HVAC systems. Browse our selection today.
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FSD60 : UL 555/555S 1.5 hr./Class I, Airfoil Blade, 4,000 fpm
The FSD60 Combination Fire/Smoke Damper are both UL555 and UL555S Classified, and rated as a 1-1/2 hour fire damper and a Leakage Class I Smoke damper. It features: Maximum velocity of 4,000 fpm. Maximum 8" static pressure. UL approval for dual directional airflow.
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