It is usually installed in the pipe of exhaust system or exhaust vent or entrance of exhaust fan, has the double functions of exhaust damper and fire damper. At ordinary time, it is normal close, in fire situation, open automatically to exhaust smoke, when the exhaust airflow ...
Ruskin Fire and Smoke Dampers are designed to protect life and property ...
FUNCTION:FIRE PROOF SHAPE:SQUARE MATERIAL:galvanized steel plate Model Number:PYFH-2F Brand Name:RH Place of Origin:Shandong China (Mainland) fire damper: performs the function of both a Fire Damper and a Smoke Damper. the smoke detector can send electric signal. ...
fully automatic:electric control Model Number:P838/280 Brand Name:JUNWEI Place of Origin:Guangdong China (Mainland) Fully automatic to control the close and open the valve to exhause the smoke ...
Fire Protection and Smoke Damper UTP Controller ...
Model Number:FYFH-3F Brand Name:RH FUNCTION:FIRE PROOF SHAPE:SQUARE MATERIAL:galvanized iron Place of Origin:Shandong China (Mainland) fire damper: auto close by 70 fusible link or heat-actuated glass-bulb(fire-proof function) ...