Rebuilt CVI Torr Master Cryopumps

Model Size Rebuilt TM 500 20 in ask TM 1200 48 in ask

PHPK purchased the CVI Torr Master cryopump and cryocooler product line from Chart Industries.

The coldhead refrigeration is based on the Gifford-McMahon expansion engine design.

First stage array is cooled to a nominal 77 K, freezing out water vapor and providing thermal radiation shielding for the second stage. The inner or second stage array is cooled to a nominal 15-20 K for rapid pumping of nitrogen and oxygen. Helium, hydrogen and neon are pumped by absorption on a bed of activated carbon cooled to 15-20 K by the inner array. Torr Masters have no moving parts or operating fluids exposed to the vacuum.