Method and system for measuring gate valve clearances and seatin

Details Method and system for measuring gate valve clearances and seatin Method and system for measuring gate valve clearances and seatin

1995-02-28

1996-01-30

Raevis, Robert

Measuring and testing

Blower, pump, and hydraulic equipment

F16K 3700

Patent

active

054873029

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.

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patent: 5137257 (1992-08-01), Tice
patent: 5156373 (1992-10-01), Boyles et al.
patent: 5224512 (1993-07-01), Nogami et al.
patent: 5239874 (1993-08-01), Hale

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