The knowledge of the leakage of Dongguan spiral duct , we must first realize that this is the key factor that affects whether the entire galvanized duct can be applied more effectively. So we must test it well before applying it. It is important to note that when we measure the air leakage of the galvanized duct, it is performed at night to ensure that the surrounding environment is dark. Place the low-pressure lighting of the protective cover inside or outside the duct, along the detection site and the joint Make a slow movement and observe on the other side. When light is found to be emitted, it means that a significant air leak is found and a record is made.
1. For different specifications of galvanized air ducts, use different thickness plates according to the specifications. On the basis of familiarizing with the size and layout of the air duct of the drawing, a skilled technician will release the material to ensure that the production and installation of the air duct meets relevant standards.
2. Dongguan spiral air pipe flange will be uniformly manufactured according to the series specifications specified in the drawing. In addition, the bolt holes of the flange are punched at a fixed distance using a punch and a die. The forming welding also uses a special die for position welding to ensure the same specifications. Duct flanges are interchangeable.