CryoPacific, Inc.

Manual Valves

Manual Valve Shadow

CryoPacific Cryogenic  Vacuum Jacketed Manual Valves

CryoPacific’s Cryogenic vacuum jacketed manual valves have excellent flow characteristics and are built to provide extremely low heat leak.  These valves combine to have low thermal mass and high structural integrity for efficient  operation at cryogenic temperatures.  The bonnet extension member is long, thin walled, and precision machined to limit the conductive heat transfer.  CPI valves are specifically designed for critical LH2 and LHe service where low heat leak is of the utmost importance. A dual aligned stem seal located in the extended valve bonnet assembly helps minimize the cold transference to the warm packing section which yields long packing and soft seal life.  The  valve head has a  spring loaded swivel  stabilizer design to prevent valve seat damage while seating.  All moving and contacting parts have closely held tolerances for effective operation.  The valve stem has thermal spacers that have a tight clearance to the barrel housing which allows for creation of a gas pocket.  This feature allows the valve to be mounted in various angles off of the horizontal.  The valve body has a port to provide for purging or a thermal relief connection source.  All valves are Mass-spectrometer leak checked, proof pressure tested, and positive seating inspected for bubble tight shut-off.  All of these features provides for the most reliable valve operation in the industry.


Product Literature:

CPI – Cryogenic Manual Valve Product Sheet – Feb2012

CryoPacific, Inc.