G - Physics – 01 – N
Patent
G - Physics
01
N
354/28, 73/77
G01N 3/08 (2006.01) F16K 31/04 (2006.01) F16K 37/00 (2006.01)
Patent
CA 1316718
Abstract of the Disclosure Actual valve stem thrust loads in a motor operated valve are monitored and measured directly by the use of load sensing means disposed directly between the valve and the operator. Direct measurement of stem thrust eliminates the errors associated with indirect methods. Analysis of actual thrust load measurements and correlation with other operating parameters, such as switch actuation and motor current, provides the capability to accurately calibrate valve operators and to detect valve and operator problems at an early stage.
588516
Branam Timothy R.
Roberts Jeffrey J.
Schoenberger Jack O.
Crane Nuclear Inc.
Marks & Clerk
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