Invention Grant
- Patent Title: Pilot operated relief valve with dual pilot regulators
- Patent Title (中): 先导式安全阀,带双引导调节器
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Application No.: US14039549Application Date: 2013-09-27
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Publication No.: US09334974B2Publication Date: 2016-05-10
- Inventor: Juan M. Diaz , Khashayar A. Nashery , Bryan J. Steger
- Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
- Applicant Address: US TX McKinney
- Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
- Current Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
- Current Assignee Address: US TX McKinney
- Agency: Marshall, Gerstein & Borun LLP
- Main IPC: F16K31/14
- IPC: F16K31/14 ; F16K17/00 ; F16K17/10

Abstract:
A pilot operated pressure relief valve includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway. A valve plug may be disposed within the fluid passageway, the valve plug cooperating with a valve seat to control fluid flow through the fluid passageway. An actuator may be connected to the valve plug, the regulator biasing the valve plug towards the valve seat. A pilot assembly may include a first pilot valve and a second pilot valve, wherein the pilot assembly directs fluid pressure upstream of the valve plug to one of the first and second pilot valves. When the upstream fluid pressure exceeds a predetermined level, the valve plug moves away from the valve seat allowing fluid to flow through the fluid passageway.
Public/Granted literature
- US20140090725A1 PILOT OPERATED RELIEF VALVE WITH DUAL PILOT REGULATORS Public/Granted day:2014-04-03
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