[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - manual control valve] Material: Aluminum / steel / stainless steel / galvanized steel product features: aluminum electric closed valve / aluminum air flow control valve of this product mainly used to regulate air flow, reducing wind speed, air pressure, air flow control valve to reduce the noise, and closed quite effective. Mainly driven approach is driven by a gear lever, manual or electric adjustment. Aluminum electric air valve is mainly used in central air-conditioning system [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - damper valve] installed in the central air-conditioning duct system works extremely fluxing temperature control valve outlet pressure, the use of the force of gravity acting and spring mechanism closes the valve. When a fire occurs, the flame duct invasion, high temperature melting fusible alloy valves, or to make memory alloy deformed the valve automatically closes for the duct and the fire district throughout the occasion. Fire dampers, valves, valve manufacturers in Tianjin Jinzhong Ji provided 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!