Air leak tester

The "air leak tester" is a device that pressurizes the inside (or outside) of a sealed workpiece with air and determines the presence or absence of leaks based on pressure changes. When a leak-free master and a workpiece with a leak are pressurized, the pressure on the workpiece side decreases, creating a pressure difference between the two. By measuring this pressure difference, the presence or absence of a leak is determined. Generally, differential pressure air leak testing is widely used, but Fukuda also offers products that utilize direct pressure leak testing and flow meters according to the leak rate, in addition to differential pressure leak testers. Since the air leak tester uses air as the measuring medium, it incurs no running costs and is environmentally friendly.