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Adsorption Traps For Optimal Vacuum Performance
Adsorption traps (zeolite traps) Stainless steel
Usability
The achievable ultimate pressure of oil-sealed vacuum pumps is strongly influenced by the backflow of water vapor and hydrocarbons from the pump oil. Two-stage rotary vane pumps are no exception here, although the quantity of molecules is lower.
The generation of oil-free high and ultra-high vacuums, e.g. with turbomolecular pumps, requires that the fore-vacuum side is already “clean”. To achieve this condition, adsorption traps filled with zeolite are installed in the suction line of two-stage backing pumps. The saturated zeolite filling can be easily regenerated repeatedly by bake-out at approx. 300°C in order to achieve total pressures of 10-5 mbar with two-stage rotary vane pumps.
