PRESSURE-RELIEF VALVE - ENGINEERED CONTROLS INT LLC

Title:

PRESSURE-RELIEF VALVE

Document Type and Number:

WIPO Patent Application WO/2021/035625

Kind Code:

A1

Abstract:

A valve for conveying fluid has a closed position and an open position and comprises a body (20), a valve seat (70) disposed in the body, a holder (50) disposed in the body, and a valve seat disc (60). The valve seat comprises one or more inner surfaces (73) and an outer surface (71), and the one or more inner surfaces define an inner void (75). The valve seat disc is connected to and movable with the holder between a first position in which the valve seat disc sealingly engages the outer surface of the valve seat and a second position in which the valve seat disc is disengaged from the outer surface of the valve seat. The valve is in the closed position when the valve seat disc is in the first position and the valve is in the open position when the valve seat disc is in the second position.

Inventors:

CAO GUANGBIN (CN)

Application Number:

PCT/CN2019/103340

Publication Date:

March 04, 2021

Filing Date:

August 29, 2019

Export Citation:

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Assignee:

ENGINEERED CONTROLS INT LLC (US)

International Classes:

F16K17/06

Domestic Patent References:

WO2002046651A1	2002-06-13
WO2016044398A1	2016-03-24

Foreign References:

US4520843A	1985-06-04
US20030047216A1	2003-03-13
US6953053B2	2005-10-11
CN203892654U	2014-10-22
CN203836313U	2014-09-17
US9939072B2	2018-04-10
US3025874A	1962-03-20

Other References: