Liquid Feedthroughs Designed specifically for the transmission of fluids and gasses into high and ultra-high vacuum environments. Product Types and Information Water Feedthroughs Used to transfer coolant to processing equipment inside a vacuum system. Designed to minimize heat transfer between coolant lines and vacuum mounts and thus eliminate ice buildup and its detrimental effects.
Thermal insulation is achieved through double wall coaxial construction.
A .25 inch cooling line is inserted and welded into a .50 inch support tube. The resulting cavity is evacuated providing an excellent thermal barrier. This barrier prevents ice buildup on the air side of the vacuum mount. ISI also offers individual liquid feedthrough tube kits for direct welding into a custom chamber or flange. Tube kits are supplied in weld tube form only, without fittings.