Large ultra-high-vacuum VAT gate valve with viton gasket for the VIRGO interferometer

Citation
V. Brisson et al., Large ultra-high-vacuum VAT gate valve with viton gasket for the VIRGO interferometer, VACUUM, 60(1-2), 2001, pp. 221-227
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
VACUUM
ISSN journal
0042-207X → ACNP
Volume
60
Issue
1-2
Year of publication
2001
Pages
221 - 227
Database
ISI
SICI code
0042-207X(200101/02)60:1-2<221:LUVGVW>2.0.ZU;2-W
Abstract
A 1.2 m diameter vacuum gate valve has been built by VAT as the first of a series of four, to equip the 2 x 3 km arms of the VIRGO interferometer. A P arker viton ring phi = 15 mm, l = 4 m was submitted to a special heat treat ment in air and in vacuum at Orsay before being inserted into the gate valv e. The results tests on air tightness and on hydrogen, fluorine, and hydroc arbon outgassing carried out on the first gate valve are presented. (C) 200 1 Elsevier Science Ltd. All rights reserved.