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1. (WO2016051878) BUTTERFLY VALVE

Pub. No.:    WO/2016/051878    International Application No.:    PCT/JP2015/066680
Publication Date: Fri Apr 08 01:59:59 CEST 2016 International Filing Date: Thu Jun 11 01:59:59 CEST 2015
IPC: F16K 1/22
B60H 1/32
F16K 11/052
F16K 31/04
F25B 41/04
Applicants: TGK CO., LTD.
Inventors: ANDOH Toshihiro
The body (12) of a butterfly valve (10) has a first channel (24), and a second channel (26) connected so as to intersect the first channel (24). The valve element thereof is positioned in the first channel (24) in the connecting section with the second channel (26), and is capable of adjusting the state of connection between the first channel (24) and the second channel (26) by rotating. The second channel (26) opening end section that opens to the first channel (24) has a cross-section shaped in a manner such that the opening width is smaller in the direction perpendicular to the axial direction of the shaft than in said axial direction.