Title:
バルブ
Document Type and Number:
Japanese Patent JP4629829
Kind Code:
B2
Abstract:
A valve (1) for use with an ultra high purity gas comprising a valve body (7) defining a valve chamber (15) having a valve outlet (5) through which gas is discharged and containing a reciprocable sealing member (9), characterised in that the valve chamber (15) is in fluid communication with a source of the gas and in that the sealing member (9) is reciprocable along an axis substantially parallel to the direction of flow of gas discharged from the valve outlet (5) and into and out of sealing contact with a sealing face (13) located within the valve chamber and circumscribing the inlet end (17) of a valve outlet pipe (19), the opposite, outlet end (21) of which pipe forms the valve outlet. The valve has a low wetted area and is thus easy to purge, and the valve design both reduces wear and restricts it to a single component which is easily replaced when necessary.
More Like This:
| WO/2012/065437 | EXPANSION VALVE |
Inventors:
Richard Hogle
Peter Buckley
Ken Cross
David Birch
Kazuya Inoue
Jack wort
Peter Buckley
Ken Cross
David Birch
Kazuya Inoue
Jack wort
Application Number:
JP2000110243A
Publication Date:
February 09, 2011
Filing Date:
April 12, 2000
Export Citation:
Assignee:
The BOC Group Limited
International Classes:
F16K1/36; F16K1/30; F17C13/04; F16K1/34; F16K1/42; F16K7/12; F16K7/16; F16K41/12
Foreign References:
| US2792845 | ||||
| US3863668 | ||||
| US4638833 | ||||
| US4660598 |
Attorney, Agent or Firm:
Kazuo Shamoto
Shosuke Imai
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi
Minako Matsuyama
Shosuke Imai
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi
Minako Matsuyama