Method and system for measuring gate valve clearances and seating force

Casada, D A; Haynes, H D; Moyers, J C; Stewart, B K

Title: Method and system for measuring gate valve clearances and seating force

Full Record
Other Related Research

Abstract

Valve clearances and seating force, as well as other valve operational parameters, are determined by measuring valve stem rotation during opening and closing operations of a translatable gate valve. The magnitude of the stem rotation, and the relative difference between the stem rotation on opening and closing provides valuable data on the valve internals in a non-intrusive manner. 8 figs.

Inventors:: Casada, D A; Haynes, H D; Moyers, J C; Stewart, B K

Issue Date:: 1996-01-30

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 187079

Patent Number(s):: 5487302

Application Number:: PAN: 8-396,092

Assignee:: Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States)

DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Resource Relation:: Other Information: PBD: 30 Jan 1996

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; VALVES; POSITIONING; MONITORING; OPERATION; MACHINE PARTS; MEASURING METHODS; MEASURING INSTRUMENTS; DESIGN

Citation Formats


                    Casada, D A, Haynes, H D, Moyers, J C, and Stewart, B K. Method and system for measuring gate valve clearances and seating force.  United States: N. p., 1996. 
        Web.

Copy to clipboard


                    Casada, D A, Haynes, H D, Moyers, J C, & Stewart, B K. Method and system for measuring gate valve clearances and seating force.  United States.

Copy to clipboard


                    Casada, D A, Haynes, H D, Moyers, J C, and Stewart, B K. Tue .  
        "Method and system for measuring gate valve clearances and seating force".  United States.

Copy to clipboard


                    
@article{osti_187079,

  title        = {Method and system for measuring gate valve clearances and seating force},

  author       = {Casada, D A and Haynes, H D and Moyers, J C and Stewart, B K},

  abstractNote = {Valve clearances and seating force, as well as other valve operational parameters, are determined by measuring valve stem rotation during opening and closing operations of a translatable gate valve. The magnitude of the stem rotation, and the relative difference between the stem rotation on opening and closing provides valuable data on the valve internals in a non-intrusive manner. 8 figs.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1996},

  month        = {1}

}

Copy to clipboard

Patent:

Search for the full text at the U.S. Patent and Trademark Office

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Method and system for measuring gate valve clearances and seating force

Patent Casada, Donald A [Knoxville, TN]; Haynes, Howard D [Knoxville, TN]; Moyers, John C [Oak Ridge, TN]; ...

Valve clearances and seating force, as well as other valve operational parameters, are determined by measuring valve stem rotation during opening and closing operations of a translatable gate valve. The magnitude of the stem rotation, and the relative difference between the stem rotation on opening and closing provides valuable data on the valve internals in a non-intrusive manner.
Full Text Available
Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating

Patent Casada, D A

A method and apparatus are provided for monitoring a motor operated valve during the brief period when the valve seats and the torque switch trips to deenergize the valve motor. The method uses voltage measurements on the load side of a deenergizing switch that opens to deenergize the motor to determine, among other things, final motor rotational speed and the decelerating torque at motor deenergization. 14 figs.
Force measuring valve assemblies, systems including such valve assemblies and related methods

Patent DeWall, Kevin George [Pocatello, ID]; Garcia, Humberto Enrique [Idaho Falls, ID]; McKellar, Michael George [Idaho Falls, ID]

Methods of evaluating a fluid condition may include stroking a valve member and measuring a force acting on the valve member during the stroke. Methods of evaluating a fluid condition may include measuring a force acting on a valve member in the presence of fluid flow over a period of time and evaluating at least one of the frequency of changes in the measured force over the period of time and the magnitude of the changes in the measured force over the period of time to identify the presence of an anomaly in a fluid flow and, optionally, its estimatedmore » « less
Full Text Available
Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating

Patent Casada, Donald A [Oak Ridge, TN]

A method and apparatus are provided for monitoring a motor operated valve during the brief period when the valve seats and the torque switch trips to deenergize the valve motor. The method uses voltage measurements on the load side of a deenergizing switch that opens to deenergize the motor to determine, among other things, final motor rotational speed and the decelerating torque at motor deenergization.
Full Text Available
Method for valve seating control for an electro-hydraulic engine valve

Patent Sun, Zongxuan [Plymouth, MN]

Valve lift in an internal combustion engine is controlled by an electro-hydraulic actuation mechanism including a selectively actuable hydraulic feedback circuit.
Full Text Available

Similar Records