Title:
DIAPHRAGM VALVE
Document Type and Number:
WIPO Patent Application WO/2010/061731
Kind Code:
A1
Abstract:
A diaphragm valve using a reduced number of parts to reduce material cost and configured so that the entire valve is reduced in size and weight.
A diaphragm valve comprising: a valve body (11) having a valve chamber inlet of an inflow path (11a) and a valve chamber outlet of an outflow path (11b); a valve seat (12) provided to the valve body (11) so as to surround the valve chamber inlet of the inflow path (11a); a diaphragm (13) for opening and closing the valve by approaching and separating from the valve seat (12); and a bonnet (15) sandwiching the outer peripheral edge of the diaphragm (13) in cooperation with the valve body (11), wherein the outer peripheral edge of the diaphragm (13), the outer periphery of the valve body (11), and the outer periphery of the bonnet (15) are welded to each other along the entire peripheries thereof.
Inventors:
SUZUKI KOICHI (JP)
CHIBA YASUHIRO (JP)
MEGURO TOSHIKATSU (JP)
CHIBA YASUHIRO (JP)
MEGURO TOSHIKATSU (JP)
Application Number:
PCT/JP2009/069194
Publication Date:
June 03, 2010
Filing Date:
November 11, 2009
Export Citation:
Assignee:
HAM LET MOTOYAMA JAPAN LTD (JP)
SUZUKI KOICHI (JP)
CHIBA YASUHIRO (JP)
MEGURO TOSHIKATSU (JP)
SUZUKI KOICHI (JP)
CHIBA YASUHIRO (JP)
MEGURO TOSHIKATSU (JP)
International Classes:
F16K7/12; F16K7/16
Foreign References:
| JP2006077823A | 2006-03-23 | |||
| JP2006090386A | 2006-04-06 | |||
| JPH11325273A | 1999-11-26 | |||
| JPH08219304A | 1996-08-30 | |||
| JP2005163877A | 2005-06-23 |
Attorney, Agent or Firm:
FUKUMORI, Hisao (JP)
Hisao Fukumori (JP)
Hisao Fukumori (JP)
Download PDF: