Ventilation systems are commonly used to transmit ducts. At this time, a large number of ducts are required. The commonly used ducts are spiral ducts. Since the spiral duct is made up of 2-6 meters in length, the spiral duct must pay attention to the installation quality when the link is installed. The quality of the duct will directly affect the ventilation effect of the entire ventilation project. Then let's take a look at the connection and installation precautions for the spiral air duct.

1. When installing the spiral ventilation pipe connection, if flange connection is used, the flange bolting direction should be the same as the air flow direction in the air duct, and the length of the screw should be the same length.
2. When using flange connection, the thickness of the mat required for the flange should be 3~5mm, and the clean system should not be less than 5mm. The mat and flange must be flush and must not be squeezed into the tube.
3. When installing the air ducts and fittings required for ventilation engineering, it is not allowed to use drag and pull movement to avoid scratching, affecting the appearance of the duct and the matching year, and even causing damage to the air duct and connecting fittings.
4. When installing the clean air duct, the flange gasket should reduce the joint. The joint must be trapezoidal or vertebra. The gasket should be clean and the sealant should be glued.
5 , whether it is flanged connection ducts and ducts or accessories or other ways to achieve a strong sealing performance, in order to use the ventilation resistance is small, the use of ventilation noise reduction, but also to ensure that the later air duct cleaning problem is The essential.

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