Leak Detection Through Pressure Decay

There are many different products today that must be tested for leaks to ensure the highest quality. Products such as valves, containers, storage tanks, radiators and drums are just some examples. There are also processes such as welding, bonding or gasketing that require leak testing. Pressure decay is one of the most common methods for detecting leaks. While helium and ion leak detection methods are effective, they are more time consuming and require expensive equipment. Pressure decay utilizing a pressure sensor works well because of its simplicity. By pressuring the test piece and then isolating it from the pressure source, any subsequent loss of pressure can be used to measure pressure decay.