Title:
サックバックバルブ
Document Type and Number:
Japanese Patent JP7300710
Kind Code:
B2
Abstract:
To prevent a defect in which particles such as impurities flow into a liquid that flows in from an inlet flow path and discharged from an outlet flow path. Provided is a suck-back valve including: a housing part; a valve element part; a diaphragm part; an open-close mechanism that brings the valve element part and a valve seat part into contact or separates the valve element part and the valve seat part from each other to switch between a closed state and an open state; and a suck-back mechanism that moves the diaphragm part in a direction in which the diaphragm part separates from the valve seat part to increase a volume of a valve chamber. The valve element part and the diaphragm part are molded integrally, the open-close mechanism is disposed in an adjacent space, and the valve element part and the open-close mechanism are coupled in the adjacent space.
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Inventors:
Atsushi Inoue
Application Number:
JP2019089538A
Publication Date:
June 30, 2023
Filing Date:
May 10, 2019
Export Citation:
Assignee:
Surpass Industry Co., Ltd.
International Classes:
F16K23/00; F16K31/122
Domestic Patent References:
| JP9217843A | ||||
| JP2009068568A | ||||
| JP2005090639A | ||||
| JP2011247378A | ||||
| JP60058979U |
Attorney, Agent or Firm:
Takaharu Fujita
Takaori Mitoma
Miki Kawakami
Daisuke Nagata
Takaori Mitoma
Miki Kawakami
Daisuke Nagata