Cryogenic Feed-Through Test Rig

·         Feed-throughs pass electrical signal and power wires through bulkheads on storage tanks, vacuum jackets, and piping runs

·         Feed-through manufacturers typically do not pressure test their products at cryogenic temperatures

·         CFTR designed to subject candidate feed-throughs to extreme pressure and cryogenic-thermal cycles

·         CFTR features:

·         Quantitatively measures feed-through leak rates at operating temperature and pressure

·         Operating conditions:

·         Ambient to LH2 temperatures

·         Vacuum to 5,000 psia

·         Helium mass spectroscopy detects leak rate to 10^-11 sccs

·         U.S. Pat. No. 7,836,754

·         Applications:

·         Feed-throughs for power/instrument wires

·         Fittings

·         Seals

·         Small flanges

·         View ports

CFTR validates feed-through
 designs for safe
and reliable operation