[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. Smoke fire control valve, normally open damper, 70 degrees closed, with a, but more of a telecommunications signal input, remote control can eliminate the control room is closed, generally used for peacetime air, fire, wind up sharing duct systems, fire Close does not need to be controlled wind up room; normally open type smoke damper, 280 degrees fuse closed, normally open, output electrical signal, this and a similar, but different fusing temperature, generally used in fire exhaust pipe through the firewall Department damper actuators, the flue gas temperature over 280 degrees, turn off automatic fuse, turn off the exhaust fan can be linked. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - damper] ventilation and air conditioning engineering construction quality finished damper provisions are there? 1. The damper should be consistent with product specifications technical standards, and shall meet the design and use requirements; 2. flexible damper should open and close the damper effect, solid structure, close the flue damper housing, preservation of good, smooth surface, no apparent injuries and deformation, not due cracks, corrosion and other defects; 3. rotating parts inside the damper should be resistant, corrosion-resistant materials, the rotating mechanism flexible, reliable braking and positioning device; 4. damper Act Lan and duct flange should match. Damper effect, Tianjin fire dampers, fire dampers Jinzhong Ji Tianjin Tianjin Jinzhong Ji by HVAC manufacturers to provide 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!