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Title:
DIAPHRAGM VALVE
Document Type and Number:
WIPO Patent Application WO/2019/151499
Kind Code:
A1
Abstract:
In a diaphragm valve (10), a valve main body (11) has an inlet-side flow channel (241), an outlet-side flow channel (242), a communication part (243), a first surface (31), a second surface (32), an inlet-side rib (51), and an outlet-side rib (52). The inlet-side flow channel (241) and the outlet-side flow channel (242) are in communication through the communication part (243). An opening (31a) facing the communication part (243) is formed in the first surface (31). The second surface (32) faces the first surface (31) with the inlet-side flow channel (241) and the outlet-side flow channel (242) therebetween. The inlet-side rib (51) is provided in the second surface (32), and is formed along the inlet-side flow channel (241). The outlet-side rib (52) is provided in the second surface (32), and is formed along the outlet-side flow channel (242). A recessed part (51a) is formed in the inlet-side rib (51). A recessed part (52a) is formed in the outlet-side rib (52).

Inventors:
TSUCHIDA, Risako (75 Nojiri, Ritto-sh, Shiga 81, 〒5203081, JP)
SAITO, Ayaka (75 Nojiri, Ritto-sh, Shiga 81, 〒5203081, JP)
Application Number:
JP2019/003701
Publication Date:
August 08, 2019
Filing Date:
February 01, 2019
Export Citation:
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Assignee:
SEKISUI CHEMICAL CO., LTD. (4-4 Nishitemma 2-chome, Kita-ku Osaka-sh, Osaka 65, 〒5308565, JP)
International Classes:
F16K27/02; F16K7/16; F16K7/17
Foreign References:
US20060118751A12006-06-08
JPH0446276A1992-02-17
JPS6161379U1986-04-25
US5632465A1997-05-27
JP2007278308A2007-10-25
EP2431639A12012-03-21
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (South Forest Bldg, 1-4-19 Minamimori-machi, Kita-ku, Osaka-sh, Osaka 54, 〒5300054, JP)
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