VALVE STEM FREEZE SEAL FOR HIGH-TEMPERATURE SODIUM

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Description

Valve stem freeze seals for high-temperature service in advanced sodium- cooled reactor systems were studied. An experimental model, suitable for use with a 6-in. size valve, operated satisfactorily under a variety of conditions. The freeze seal region was cooled by natural convection to ambient atmosphere; cooling by both circumferential and longitudinal finned sections was experimentally studied. The operating conditions included sodium bulk temperatures up to 1300 tained F, sodium pressures up to 75 psig, and ambient temperatures as high as 150 tained F. Anticonvection rings were pcsitioned in the sodium-filled annulus between stem and stemguide, and the effects of their ... continued below

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Pages: 37

Creation Information

McDonald, J.S. July 30, 1960.

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Description

Valve stem freeze seals for high-temperature service in advanced sodium- cooled reactor systems were studied. An experimental model, suitable for use with a 6-in. size valve, operated satisfactorily under a variety of conditions. The freeze seal region was cooled by natural convection to ambient atmosphere; cooling by both circumferential and longitudinal finned sections was experimentally studied. The operating conditions included sodium bulk temperatures up to 1300 tained F, sodium pressures up to 75 psig, and ambient temperatures as high as 150 tained F. Anticonvection rings were pcsitioned in the sodium-filled annulus between stem and stemguide, and the effects of their presence was studied. Predictions of temperature profiles along the stem, using several different analytical methods, were compared with experimental results. (auth)

Physical Description

Pages: 37

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  • Other Information: Orig. Receipt Date: 31-DEC-60

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  • Report No.: NAA-SR-4869
  • Grant Number: AT-11-1-GEN-8
  • DOI: 10.2172/4181737 | External Link
  • Office of Scientific & Technical Information Report Number: 4181737
  • Archival Resource Key: ark:/67531/metadc863376

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • July 30, 1960

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

Description Last Updated

  • Dec. 2, 2016, 6:08 p.m.

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McDonald, J.S. VALVE STEM FREEZE SEAL FOR HIGH-TEMPERATURE SODIUM, report, July 30, 1960; United States. (digital.library.unt.edu/ark:/67531/metadc863376/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.