A Miniature Cryogenic High Vacuum Valve
A small high vacuum valve has been built for use in a liquid hydrogen handling system. The valve stem tip consists of a polycarbonate resin which closes against a stainless steel seat. Other features of the valve include a closing mechanism that is helium gas operated and a bellows stem seal that allows the valve to open and close without changing the internal volume.
KeywordsEthyl Helium Convolution Flange Boulder
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