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DIRECTLY OPERATED VALVE FOR SPACE CRYOSTATS.

Author(s) : FUCHS F., SEIDEL A.

Type of article: Article

Summary

THE INFRARED SPACE OBSERVATORY CRYOSTAT WAS DEFINED AS A HYBRID COOLING SYSTEM USING LIQUID HYDROGEN AND SUPERFLUID HELIUM. A DIRECTLY ELECTRICALLY OPERATED BISTABLE LATCH-VALVE WAS DEVELOPED AND PREQUALIFICATION TESTED FOR APPLICATION WITHIN THE H2 SUBSYSTEM AND THE HELIUM II SBYTM THIS VALVE IS OPERABLE BETWEEN 1.7 AND 300 K AND WITH H2 AND HELIUM IN ALL PHASES (LIQUID, SUPERFLUID, GASEOUS). IT OFFERS VERY HIGH LEAK TIGHTNESS AT HIGHER TEMPERATURES AND SUFFICIENT LEAK-TIGHTNESS EVEN WITH HELIUM II.

Details

  • Original title: DIRECTLY OPERATED VALVE FOR SPACE CRYOSTATS.
  • Record ID : 1987-1667
  • Languages: English
  • Source: Cryogenics - vol. 27 - n. 1
  • Publication date: 1987

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