Diaphragm valve and monitoring method thereof with improved leak detection
US11927280B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2019 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Feb 20, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K37/005
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A diaphragm valve includes a valve body that defines a flow path through which fluid flows and an opening that opens to the outside in a middle of 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; and a flexible support member disposed on a rear surface side opposite to a flow path side of the flexible partition member. A housing is fixed to the valve body via peripheral portions of the flexible partition member and the flexible support member. A humidity sensor that detects a state of an atmosphere or a change thereof in a space defined by the flexible support member and an inner surface of the housing. The diaphragm valve is capable of preventing fluid in a diaphragm valve from leaking to the outside due to breakage of a diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.