[Tianjin Jin Zhongji HVAC purification equipment to recommend the star product - fire control valve] material: carbon material, galvanized plate installed in the ventilation and air conditioning system, the return air duct, usually was turned on, fire when the pipeline when the flue gas temperature reaches 70 degrees off, and in a certain amount of time to meet leakage of smoke and fire integrity requirements, since the role of smoke fire retardant. (1) The valve usually is always on, fire outlet valve, when the airflow temperature reaches 70 ℃, the temperature sensor operation, the valve is closed; (2) within the range of 0 ° ~ 90 ° manually adjust the vane opening degree; (3) Manual off or manual reset; (4) the output signal of the valve is closed, smoke damper, can interlock with other fire-fighting equipment. Advantages: 1, low air leakage, air tightness .2 good, strong corrosion resistance and long service life. 3. Actuated flexible. Feedback, interlock signal accurate. The main functions and characteristics 1, manually open the valve, manual reset closed. 2, the output signal and valve interlock control signal is turned on. Fire control valve is usually installed on the need to adjust the air flow duct ventilation and air conditioning systems for horizontal or vertical airflow duct. Smoke fire control valve is usually installed in the need to adjust the amount of wind power or signals need control valve closes the duct ventilation and air conditioning systems. For horizontal or vertical airflow duct. Small fire control valve is usually installed in the ventilation duct area is small, compact space ventilation and air conditioning systems for horizontal or vertical airflow duct. [Tianjin Jin Zhongji HVAC purification equipment to recommend the star product - fire exhaust valve installed in the exhaust system] pipeline, usually generally was closed when the fire manual or electric opening, from the smoke effect. When the internal temperature of the flue gas exhaust pipe 280 ℃ closed within a certain period of time to meet the fire resistance stability and fire integrity requirements, from the valve exhaust effects. Smoke damper normally closed (NC, telecommunications numbers turned 280 degrees blown off, or manually turned off) generally used in exhaust systems, exhaust fan can be installed at the inlet of a controlled open by the consumer when the fire control room, the chain is closed also closed the exhaust fan. Exhaust valves, with the three, each unit different names, often open fire dampers, some based on its operating temperature is called the exhaust valves, and some based on its use of nature called the damper, but the device side just ordinary fire fusing metal valve replaced fuse 280 degrees that a .3 automatic smoke damper (underground engineering) Fire subway ventilation and air conditioning systems, exhaust valve having automatic fire alarm equipment and gas extinguishing system linkage control functions. Each automatic smoke dampers with two independent electric control signal, respectively, by EMCS, gas consumption system to monitor, control signals are DC24V ± 10% signal. Each automatic smoke dampers have six independent feedback signal (three open place, three off place) feedback signals are normally open dry contact signal. Normally closed damper, valve, the base is provided by Tianjin Jin Zhongji HVAC purification equipment. Tianjin Jin Zhongji 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!