VAT Vacuum Leak Valves

Used for the precise control of very small gas flows, the 59.0 series All-Metal Leak Valve offers ultra-high and extremely high vacuum users enhanced process control and precise reproducibility of flow settings.

Manual and pneumatically actuated leak valves achieve a variable flow rate ranging from 1 × 10-10 mbar ls-1 to 500 mbar ls-1 perfect for gas dosing in applications such as material sciences, chemical vapor deposition, spectroscopy, and more.


  • Precise flow control
  • All metal build
  • Gold-plated seal for protection from corrosive gasses