[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - damper] installed in the ventilation, air conditioning system, the return air duct on the road, usually was turned on, the gas pipeline fire when the temperature reaches 70 ℃, , fusible sheet fuse, the valve automatically closes in the torsion force, within a certain period of time to meet the fire resistance stability and fire integrity requirements, from smoke fire retardant effect of the valve. When the valve is closed, the output signal is turned off. Multi-leaf smoke fire control valve exhaust port, normally open, 70 degrees closed, with one, but more than a number of input dampers wholesale telecommunications, consumer control room by remote control is off, generally used for peacetime air, fire, wind up sharing Wind pipe system, you can control the wind up when the fire off unneeded rooms; normally open type smoke damper, 280 degrees fuse closed, normally open, output electrical signal, this and a similar, but different fusing temperature, generally used Fire exhaust pipe through the firewall, the flue gas temperature exceeds 280 degrees automatically blown off, you can turn off the exhaust fan interaction. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - damper] such valves generally located in the ventilation and air conditioning pipes across the fire district. Usually open when the fire is closed to cut off the smoke, the fire spread along the ventilation ducts to other fire district. This class is divided into the following three categories dampers have: 1. driven by mounted in the valve body temperature fuse connected damper actuator movement. The temperature fuse fusible or fusible link blows smoke damper temperature is 70 ℃, the most widely used such dampers. 2. When installing pay special attention to the temperature of the fuse must be installed with the air flow direction. When the damper with a regulatory function, also known as fire control valve. 3. by temperature sensor located in the ceiling linkage damper, such valves are often called smoke valve. Damper according to project needs, and some on both dampers temperature fuse has also linked with the smoke detectors, these valves as smoke dampers. In the dual-purpose system, some air vents located on the trunk. When the exhaust vents should be closed, then you can adopt a combination of dampers and Grille fire vent. Dampers 70 ℃ _ _ Tianjin Tianjin Jinzhong Ji damper valve manufacturers to provide by the Tianjin Jinzhong Ji HVAC purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) strong, credible, in Tianjin fans, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the group into the brilliant and you work for a better future!