Four ways of finding vacuum leaks using helium
Of course, this is an extreme case, but as vacuum pressures get lower and lower, even the most seemingly secure and pristine of systems will soon show themselves to be less than tight. Tightness (or “the absence of leaks”) is required for numerous reasons, including: to ensure and maintain the pressure/vacuum; for product safety; for environmental standards; and for process efficiency. There are two aspects of leak technology worth examining: leak detection and leak measurement.