A high performance normally closed solenoid-actuated cold valve.
An electromagnetically driven normally closed valve for liquid helium is presented, which is meant to regulate the input flow to a 1 K pot. An earlier design is modified to be normally closed (not actuated) and tuned for durability and reliability. A new feature is presented which prevents seat deformation at room temperature and provides comfort and durability for intensive use.
Taminiau
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Kamerlingh Onnes Laboratory (LION), Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands.
Benningshof
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Jochemsen
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