Title:
DIAPHRAGM VALVE
Document Type and Number:
WIPO Patent Application WO/2020/261952
Kind Code:
A1
Abstract:
The present invention provides a control valve exhibiting excellent durability performance without being constrained by the intended use such as high-pressure use or high-temperature use and having particle generation suppressed. This diaphragm valve is provided with: a valve body (2) in which an inlet passage (22) and an outlet passage (23) for a fluid are formed; a valve seat (25) formed at the peripheral edge of the inlet passage in the valve body; a diaphragm (30) that abuts against or separates from the valve seat so as to connect or disconnect the inlet passage and the outlet passage; a diaphragm presser (31) that presses the center portion of the diaphragm; and an actuator (4) that moves the diaphragm presser. The diaphragm valve also has an adjustment mechanism for adjusting the closing pressure between the valve seat and the diaphragm to a prescribed pressure level.
Inventors:
ISHIBASHI KEISUKE (JP)
YOSHIDA TOSHIHIDE (JP)
YAKUSHIJIN TADAYUKI (JP)
YAMAJI MICHIO (JP)
SHINOHARA TSUTOMU (JP)
YOSHIDA TOSHIHIDE (JP)
YAKUSHIJIN TADAYUKI (JP)
YAMAJI MICHIO (JP)
SHINOHARA TSUTOMU (JP)
Application Number:
PCT/JP2020/022461
Publication Date:
December 30, 2020
Filing Date:
June 08, 2020
Export Citation:
Assignee:
FUJIKIN KK (JP)
International Classes:
F16K7/17; F16K31/122; F16K39/02
Domestic Patent References:
| WO2011064948A1 | 2011-06-03 | |||
| WO2018180481A1 | 2018-10-04 |
Foreign References:
| JP3190116U | 2014-04-17 | |||
| JP3309052B2 | 2002-07-29 | |||
| JP2018141494A | 2018-09-13 | |||
| JP2007048145A | 2007-02-22 |
Attorney, Agent or Firm:
MATSUMURA Naoto et al. (JP)
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