After the Dongguan Spiral Duct is
stable and solid, the preparations before installation must be done. First, the materials to be installed must be inspected. Only after obtaining a qualified inspection report can they be installed. The thing to do before installation is to look at the appearance Carry out quality inspection to check whether the size of the spiral duct is correct, and also to remove dust and debris inside the duct. Then, according to the design drawing, refer to the civil reference line to determine the elevation, position, and direction of the spiral duct, and release the installation positioning line. Everything is ready for installation.
When installing the spiral duct, after the elevation is determined, the form of the support and hanger should be selected according to the installation position of the spiral duct, the cross-section size of the duct, and the specific conditions of the project. Supports and hangers for special ducts shall be installed in accordance with design requirements. When installing the support hanger, firstly use the bracket to lay the air duct along the wall or column, and then weld the bracket to the embedded iron parts, or fix it with expansion bolts. You can also use round or angle steel directly on the column hoop. When installing, first measure the level of the air duct before installing the bracket, and then compound the level and height of the bracket.
After the main duct of the Dongguan Spiral Duct
System is installed, the tightness of the main duct of the Spiral Duct System must be checked before the outlets and branch pipes are not connected.
After the main duct is installed, it is time to install the duct section. Pulleys that are inconvenient to suspend can not be hoisted due to site constraints. In this case, the air duct can be pulled to the scaffolding section by rope first, and then lifted to the bracket to gradually install the front flange.
The performance of the accessory products conforms to the international UfL 181 first-class standard. It has the inspection report of national fixed fire extinguishing project and refractory structure release, the inspection report of quality monitoring inspection center, and passed the test of China Institute of Preventive Medicine Science Environment and Health Engineering.
There are some differences between the super duct, glass fiber reinforced plastic duct, and galvanized iron duct in the actual installation and subsequent maintenance of air conditioning ducts.