This is a minor maintenance kit with the necessary O-rings and parts needed to repair a CTI Cryo-Torr CT-400/500 Cryo-pump.

The CTI-Cryogenics Cryo-Torr CT-400/500 pumps, are one of the two major components that make up the Cryo-Torr Pumping System. The second component is the Compressor (also sold on this website). The Cryo-Torr CT-400/500 Cryopump, provides fast, clean pumping of all gases in the 10-3 to 10-9 Torr range. Standard applications include, Semiconductor, Aerospace & Vacuum coating as well as R&D. The cryo-pump operates on the principle that gases can be condensed and held at extremely low vapor pressures, achieving high speeds and through puts. The Cryo-Torr CT-400/500 Pump is a highly-reliable and rugged unit that requires minimal servicing. Since the cryo-pump exposes no moving parts, operating fluids, or backing pumps to the vacuum, the possibility of system or process contamination from the cryo-pump itself is eliminated. The Cryo-Torr CT-400/500 works with SC Helium Compressor and 8200, 8600, 9000 Helium Compressors. Descripition, Installation, Regeneration, and Maintenance Procedures are totally covered in the Cryo Torr Pump Installation, Operation and Maintenace Instructions .pdf for download below.