Needle tunnel waterproof board weld seam air tightness detector detection method

The DP-SFQM-1 Needle Tunnel Waterproof Board Weld Seam Airtightness Tester is a reliable tool used to check the integrity of welded seams on waterproof boards. This device ensures that the seams are properly sealed and free from leaks, which is crucial for applications such as construction, geotechnical engineering, and industrial waterproofing projects.

To perform the test, connect the No. 5 injection needle to the pressure gauge and use an air pump to inflate the system. Stop inflating once the pressure reaches 0.25 MPa. Allow the system to sit for 15 minutes. If the pressure drop is less than 10% during this time, it indicates that the weld seam is well-sealed and airtight. However, if the pressure drops too quickly, it suggests there may be a leak in the welding area.

In case of a rapid pressure drop, apply soapy water to the weld seam. If bubbles appear, it confirms the presence of a leak. This method helps identify weak points in the welding process, allowing for timely repairs and ensuring long-term performance of the waterproofing system. The DP-SFQM-1 is an essential tool for quality control and maintenance in various industries where sealing integrity is critical.