title: A high performance normally closed solenoid-actuated cold valve.
abstract: 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.
authors.affiliation: Kamerlingh Onnes Laboratory (LION), Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands.
authors.forename: I A J
authors.initials: IA
authors.lastname: Taminiau
authors.forename: O W B
authors.initials: OW
authors.lastname: Benningshof
authors.forename: R
authors.initials: R
authors.lastname: Jochemsen