The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 24, 2020

Filed:

Aug. 19, 2016
Applicant:

Emerson Process Management (Tianjin) Valves Co., Ltd, Tianjin, CN;

Inventors:

Bin Wang, TianJin, CN;

Qiyong Zhou, TianJin, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 47/04 (2006.01); F16K 1/44 (2006.01); F16K 39/02 (2006.01); F16K 3/26 (2006.01); F16K 25/04 (2006.01); F16K 47/08 (2006.01);
U.S. Cl.
CPC ...
F16K 1/443 (2013.01); F16K 3/262 (2013.01); F16K 3/267 (2013.01); F16K 25/04 (2013.01); F16K 39/024 (2013.01); F16K 47/08 (2013.01);
Abstract

A fluid control valve having a body, a seat ring, a valve cage adjacent the seat ring, a first valve plug assembly positioned within the valve cage, and a second valve plug assembly positioned within an axial bore of the first valve plug assembly. The first valve plug assembly has radial apertures in fluid communication with the axial bore and a first valve plug including the axial bore and a throttling port in fluid communication with the axial bore. The first valve plug assembly is movable between a closed position, in engagement with the seat ring, and an open position, spaced apart from the seat ring. The second valve plug assembly has a second valve plug that is movable between a closed position, in engagement with the first valve plug, and an open position, spaced apart from the first valve plug.


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