Title:
バランス型グローブバルブ
Document Type and Number:
Japanese Patent JP2007510870
Kind Code:
A
Abstract:
An essentially fully balanced plug valve is presented in which the flow control contour is interior to the moving member. The sealing edge of the moving member is at the exterior surface relative to the interior contour. This sealing edge is formed by use of matching angles on the interior of the moving member and the exterior of the stationary member. As a result, operation of the plug is fully balanced with the internal fluid pressure of the liquid therein. The sealing surface of the stationary member is positively retained therein to prevent blowout of the sealing surface. Should failure of the sealing surface occur, a secondary metal-to-metal seal will provide fluid containment albeit possibly at a reduced containment level.
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Inventors:
Irving Sea Ericsson
Hong Min Ge
Bonnie Dickinson
Hong Min Ge
Bonnie Dickinson
Application Number:
JP2006538451A
Publication Date:
April 26, 2007
Filing Date:
November 03, 2004
Export Citation:
Assignee:
Invensys Building Systems, Inc.
International Classes:
F16K3/24; F16K1/00; F16K1/36; F16K1/52; F16K11/20; F16K39/02
Attorney, Agent or Firm:
Sadaji Miyakawa
Tadao Naito
Kiyoshi Miyakawa
Hiroyuki Matsumura
Shigeo Shibata
Toshiyuki Kanai
Yuko Yoshimura
Tadao Naito
Kiyoshi Miyakawa
Hiroyuki Matsumura
Shigeo Shibata
Toshiyuki Kanai
Yuko Yoshimura