Ventilator in the building construction is very common, but also a standing tool, but in the use of the time or need to pay attention to some methods, the following for your details:

1, rivets fall off the solution

Control methods: according to the process operation, riveting check, use the appropriate screws

2, air duct flange connection solution

Prevention and treatment methods: the use of square feet to find the flange and straight pipe vertical,

3, flange flanging four corners of the air leakage solution

Prevention and treatment methods: tube pressure before the pressure to the chamfer, the gap at the overlapping edge of the flattened, the four corners should not appear gap

4, the wind pipe up and down there are different degrees of sinking, both sides of the small side of the slightly protruding outward obvious deformation of the solution

Control methods: according to the norms of the choice of steel plate thickness, the use of the form should be based on the system function according to the standard processing

5, rectangular wind pipe twist, Qiaojiao solution

Control method: the correct material sheet, the size of the mouth must be correct to ensure that the same width of the mouth

6, rectangular elbow angle inaccurate solution

Prevention and control methods: the right to start cutting