Technical requirements and application of Dongguan spiral duct
1. The specifications of Dongguan spiral duct must meet the design requirements.
3. The bite seam of the air pipe panel splicing should be staggered, and there should be no cross-shaped splicing seam.
4. The bite seam of the air duct and accessories should be tight and the width should be the same; the corners should be straight, the arcs should be uniform; the two ends should be parallel. The air pipe has no obvious distortion and warping angle; the surface should be flat, and the unevenness should not be greater than 10mm.
5. Allowable deviation of outer diameter or side length of air duct: 2mm when it is less than or equal to 300mm, and 3mm when it is more than 300mm. The allowable deviation of the flatness of the nozzle is 2mm. The difference between the two diagonal lengths of a rectangular duct should not be greater than 3mm, and the difference between the two orthogonal diameters of a circular flange should not be greater than 2mm.
Many people have made great efforts on the use of air ducts. In fact, there are many types of general air ducts. You can choose which air duct to use according to your needs. The installation of stainless steel air ducts significantly reduces the connection points between the pipes and minimizes leakage at the joints of the pipe. This good installation design has greatly helped the use of air ducts, so many The air ducts are stainless steel ducts, followed by tinplate ducts. Its surface design remains unchanged, so that the surface of the galvanized steel sheet is not damaged, which greatly prolongs the service life of the duct, and at the same time, the joints are even and flat, the mouth is tight, the connection is strong, and the sealing is good. Good sealing is to allow the air duct to circulate air well. If a leak occurs, it is not good. At the air pipe interface, we pay great attention. After all, it is the air communication between the inside and the outside, and let the special installer to install the air pipe. With the air duct, the air is smoother, allowing you to enjoy fresh air.