The following are some methods to ensure the sealing performance of stainless steel ventilation pipes:

** Design reasonable connection method ** : - Adopt high quality welding process to ensure that the weld is tight and firm, no missing welding, virtual welding and so on. - Use suitable flange connection, select suitable sealing gaskets, such as rubber gaskets, etc., to ensure tight fit between flanges.

** Strict processing accuracy ** : - Ensure that the size of the pipe is accurate, reduce the size deviation during the production and installation process, so that the interface between the pipe can be accurately connected.

** Selection of high quality sealing materials ** : - According to the actual working conditions, choose good temperature resistance, corrosion resistance and other sealing materials to adapt to different environmental requirements.

** Fine installation process ** : - Installation personnel should have professional skills and operate in accordance with specifications to ensure that the connection parts are installed closely. - Support and fix the pipe correctly to prevent seal failure due to shaking.

** Regular inspection and maintenance ** : - Regular inspection of the pipeline system, timely discovery of the seal is not tight and repair. - Clean up the debris in the pipeline to avoid affecting the sealing effect.

** Quality inspection ** : - Strict sealing performance testing in the production and installation process, such as pressure testing, airtight testing, etc., to ensure that the sealing performance of the pipeline system is up to standard.

For example, in a large industrial project, the construction team strictly controlled the welding process of stainless steel ventilation pipes, and every weld was carefully inspected and accepted. At the same time, when installing the flange connection, carefully select high-quality sealing gaskets and ensure that the installation is firm. After the completion of the project, a comprehensive airtight test was also carried out, thus effectively ensuring the sealing performance of the entire ventilation duct system.