Patent ID: 11927280
Assignee: FUJIKIN INCORPORATED
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F  G

Claim 0:
1. A diaphragm valve comprising:
a valve body that defines a flow path through which a fluid flows and an opening that opens to the outside in a middle of the flow path;
a flexible partition member that covers the opening and separates the flow path from the outside, and changes a cross-sectional area of the flow path;
a flexible support member disposed on a rear surface side opposite to a flow path side of the flexible partition member;
a housing fixed to the valve body via peripheral portions of the flexible partition member and the flexible support member; and
a humidity sensor that detects a humidity of an atmosphere or a change thereof in a space defined by the flexible support member and an inner surface of the housing, wherein
the humidity sensor has a flat plate shape having a hole in a center and is disposed on a ceiling of said space, or
the humidity sensor is disposed on a surface of a compressor between the flexible support member and the compressor.