Title:
FLOW RATE CONTROL VALVE
Document Type and Number:
WIPO Patent Application WO/2022/079790
Kind Code:
A1
Abstract:
Provided is a flow rate control valve that enables high turndown by achieving extremely low flow rate control that conventional needle valves are not capable of. A flow rate control valve 1 includes: a valve chamber 22; a first port 20 and a second port 21 that communicate with the valve chamber 22; a valve seat 18 provided in a valve opening 19 of the second port 21; a valve body 25 that is seated on the valve seat 18; and a driving unit 13 that connects to the valve body 25 and allows the position of the valve body 25 to move in the valve opening/closing direction, wherein the valve body 25 is provided with a plug 14 insertable into the valve opening 19 at the center and with a sponge 16 being interposed between the valve body 25 and the valve seat 18 so as to be seated on the valve seat 18 while surrounding the circumference of the plug 14.
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Inventors:
HISHIKAWA MINORU (JP)
IMANISHI MASAKAZU (JP)
IMANISHI MASAKAZU (JP)
Application Number:
PCT/JP2020/038598
Publication Date:
April 21, 2022
Filing Date:
October 13, 2020
Export Citation:
Assignee:
TIME ENG CO LTD (JP)
International Classes:
F16K1/36; F16K1/42
Foreign References:
| JP2002235969A | 2002-08-23 |
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