Invention Grant
US09404515B2 Valve positioner having bypass component and control value comprised thereof
有权
具有旁路部件的阀定位器和由其组成的控制值
- Patent Title: Valve positioner having bypass component and control value comprised thereof
- Patent Title (中): 具有旁路部件的阀定位器和由其组成的控制值
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Application No.: US13937823Application Date: 2013-07-09
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Publication No.: US09404515B2Publication Date: 2016-08-02
- Inventor: Sandro Esposito
- Applicant: Dresser Inc.
- Applicant Address: US TX Addison
- Assignee: Dresser, Inc.
- Current Assignee: Dresser, Inc.
- Current Assignee Address: US TX Addison
- Agency: Paul Frank + Collins P.C.
- Main IPC: F15B15/20
- IPC: F15B15/20 ; F15B5/00 ; G05B19/43
Abstract:
A valve positioner that can maintain operation of the control valve despite failures in one or more components. The valve positioner may reduce downtime by allowing in-situ repair to occur on the valve positioner. The valve positioner may incorporate a by-pass component, which can utilize control input signals (e.g., a 4-20 mA signal) to energize one or more components (e.g., a current-to-pressure converter) to cause the control valve to modulate fluid flow without the digital microprocessor and/or related components.
Public/Granted literature
- US20150013786A1 VALVE POSITIONER HAVING BYPASS COMPONENT AND CONTROL VALVE COMPRISED THEREOF Public/Granted day:2015-01-15
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