Denver, NC, July 2020: Vacuum leaks manifest themselves differently than line leaks from compressed air systems. Audible noise, bubble testing and sometimes smells are common for pressurized systems but none of these tactics work for vacuum leaks. Vacuum leaks can result from physical holes in structures, contaminated seals or even gases that emit from the vessel walls. The leak can be microscopically small and yet drastically affect the process. Depending on the pressure range you’re operating in, various vacuum leak checking techniques exist.
Ways to identify vacuum leaks
Leak free systems are key for good process results and system operation. Depending on the vacuum level you are using will determine the method for finding and sealing the leaks.