This instrument is actually a mass spectrometer tuned to detect helium gas. It can detect the smallest leaks in welded joints and feedthroughs. The technique utilizes an electric arc in an inert Argon atmosphere to join stainless steel components. We repair transfer lines, replace bellows and feedthroughs on flanges, as well as making manifolds and other parts with this technique. We can also custom make vacuum flanges with various feedthroughs.
All joints are helium leak tested and thoroughly cleaned.
Silver brazing a lead on a Finnigan MAT 4500 heater assembly Our large capacity TIG welder is capable of welding complete vacuum chambers and can also be used to weld aluminum. The bellows on the Finnigan MAT 8200 series mass spectrometers can be replaced with a new welded style bellows for longer life. Leak Testing All vacuum fittings that are TIG welded and brazed in our shops are leak tested before they are returned to our customers. This leak detector utilizes a rugged turbo pump design for fast pump down and superior performance. If you have parts which you feel may be leaking, give us a call and we can test them for you.