[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - air flow control valve] air volume control valve characteristics (l) more Yefeng off valve over size and amount of ventilation ducts standardized national provisions identical rectangular duct size . (2) air flow control valve leaves off and cis-open, ventilation, air conditioning, air purification system as a regulator. (3) The test measures the exhaust fan, air flow control valve air tightness axial fans, the relative amount of air leakage around 5% regulation performance. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - damper] installed in the central air-conditioning duct system fan works extremely fusing temperature control of gold, by the action of gravity and spring mechanism Close valve. When the fire broke wind chassis intrusion flame duct, high temperature so that the valve on the fusible alloy melting, or to produce memory alloy deformation of the valve automatically closes for the duct and the fire district throughout the occasion. Exhaust air box | Tianjin Jinzhong Ji integrity for 15 years (certified) | Shanxi Jinzhong Ji HVAC blower provided by Tianjin purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) is a leader in Tianjin, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the group leadership with the staff warmly welcome all inquiries negotiations to create a better future for the base.