[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - Ventilation ducts] duct insulation is used in heating and air conditioning engineering pipeline project, the wall thickness of the structure plus the thickness of the insulation layer. Polystyrene foam insulation board or polyurethane foam board. Having a thickness of 20 ~ 30mm. Reducers, tees, elbows and other fittings ventilation plant ventilation pipes, ventilation ducts in accordance with the corresponding design and manufacturing. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - ventilation and air conditioning ductwork] construction duct and components prior to installation conditions are there? 1. Install the program has been approved, the technical standards and quality control measures adopted complete file; 2. Duct and ancillary materials approach pipeline inspection has been qualified to meet the installation requirements; 3. the construction site environment meets the operating conditions; 4. duct installation coordinates, elevation, to have been technical review. And shall meet the design requirements; 5. Installation of equipment already in place to meet the installation requirements; set aside hole position, hole size 6. Verification structures should satisfy the casing and pipe insulation requirements uninterrupted. Pipeline Engineering | Tianjin Jinzhong Ji ventilation engineering (certified) | Tianjin Tianjin Jinzhong Ji HVAC duct by 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.