Method and system for measuring gate valve clearances and seating force

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870269

Casada, Donald A ^[1]; Haynes, Howard D ^[1]; Moyers, John C ^[2]; Stewart, Brian K ^[3]

---

1. Knoxville, TN
2. Oak Ridge, TN
3. Burns, 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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: AC05-84OR21400
• Assignee: Lockheed Martin Energy Systems, Inc. (Oak Ridge, TN)
• Patent Number(s): US 5487302
• OSTI ID: 870269
• Country of Publication: United States
• Language: English

Related Subjects

method
measuring
gate
valve
clearances
seating
force
operational
parameters
determined
rotation
closing
operations
translatable
magnitude
relative
difference
provides
valuable
data
internals
non-intrusive
manner
valve internals
gate valve
valve internal
non-intrusive manner
operational parameters
seating force
valve clearances
closing operation
/73/