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Title:
DIAPHRAGM VALVE
Document Type and Number:
WIPO Patent Application WO/2019/151500
Kind Code:
A1
Abstract:
In this diaphragm valve (10), a contact part (33a) includes a first body-side curved section (71) and a second body-side curved section (72) which are curved so as to be recessed toward an opening section (31a) side in a plane perpendicular to the circulation direction X of a flow path (24). A compressor (61) has a first pressing-side curved section (81) and a second pressing-side curved section (82) which are curved so as to protrude toward the contact section (33a) side in the plane perpendicular to the circulation direction X. In a state in which a diaphragm (12) is pressed onto the contact part (33a) by the compressor (61), the first body-side curved section (71) faces the first pressing-side curved section (81) and the center (71a) of the curvature of the first body-side curved section (71) matches the center (81a) of the curvature of the first pressing-side curved section (81). The second body-side curved section (72) faces the second pressing-side curved section (82) and the center (72a) of the curvature of the second body-side curved section (72) matches the center (82a) of the curvature of the second pressing-side curved section (82).

Inventors:
TSUCHIDA, Risako (75 Nojiri, Ritto-sh, Shiga 81, 〒5203081, JP)
SAITO, Ayaka (75 Nojiri, Ritto-sh, Shiga 81, 〒5203081, JP)
Application Number:
JP2019/003703
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:
F16K7/16; F16K1/04; F16K27/00; F16K27/02; F16K31/04; F16K31/12; F16K31/60
Foreign References:
JPH0566376U1993-09-03
JPH07167314A1995-07-04
JP2009121547A2009-06-04
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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