Cryopumps are an excellent choice for certain high vacuum applications, particularly when pumping water vapor is a key requirement. A cryopump package consists of a vacuum section (cold head), and a close cycle helium section (compressor).
Routine replacement of consumable components in your closed cycle helium system is essential to maintaining optimal performance. The sole purpose of the adsorber in your helium compressor is to trap oil vapor before it enters the pump. Without a fully functioning adsorber, oil tends to condense in the closed helium circuit, which results in oil deposits around seals and displacers. Should this occur, it limits the ability of your cryopump to achieve the low temperatures necessary to run your process at optimal levels.
Adsorbers are filled with a proprietary sorbent material used to trap the excess oil vapor as helium passes from the compressor’s heat exchanger. This material has a finite trapping capacity, and replacement of this adsorber is recommended every 1-2 years for most applications.
IES Technical Sales is a high technology field sales representation and distribution company located in Danvers, MA. Contact Us to learn more about cryopump technology or for general inquiries about vacuum, thin-film, temperature, fluid handling, and related metrology.