[Tianjin Jin Zhongji HVAC purification equipment to recommend the star product - damper] installed in the central air-conditioning duct system works easily fluxing temperature control, the use of gravity and close the valve spring action mechanism . When a fire occurs, the control valve, flame invasion duct, high temperature causes the fusible alloy melting on the valve, or to memory alloy deforms the valve automatically closes, for air duct and the fire district throughout occasions. [Tianjin Jin Zhongji HVAC purification equipment to recommend the star product - fire control valve] material: carbon material, valve Which is the cheapest, galvanized plate installed in ventilation, air conditioning system delivery, return air pipe , usually was turned on when the fire when the pipeline flue gas temperature reaches 70 degrees off, and in a certain amount of time to meet leakage of smoke and fire integrity requirements, Tianjin regulating valve manufacturer, since the role of smoke fire retardant. (1) The valve usually is always on 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) manually shut down or manual reset ; (4) the output valve closes signal can be interlocked with other fire-fighting equipment. Advantages: 1, low air leakage, leafy off valve, airtight performance .2, strong corrosion resistance and long service life. 3. Actuated flexible. Feedback, interlock signal accurate. The main functions and characteristics 1, manual open, 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 valve manufacturer, 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!