Bellows sealed plug valve

Patent · Mon Jan 01 00:00:00 EST 1990

OSTI ID:867518

Dukas, Jr., Stephen J. ^[1]

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1. (Idaho Falls, ID)

A bellows sealed plug valve includes a valve body having an inlet passage and an outlet passage, a valve chamber between the inlet and outlet passages. A valve plug has substantially the same shape as the valve chamber and is rotatably disposed therein. A shaft is movable linearly in response to a signal from a valve actuator. A bellows is sealingly disposed between the valve chamber and the valve actuator and means are located between the bellows and the valve plug for converting linear movement of the shaft connected to the valve actuator to rotational movement of the plug. Various means are disclosed including helical thread mechanism, clevis mechanism and rack and pinion mechanism, all for converting linear motion to rotational motion.

• Research Organization: WESTINGHOUSE IDAHO NUCLEAR CO
• DOE Contract Number: AC07-84ID12435
• Assignee: United States Department of Energy (Washington, DC)
• Patent Number(s): US 4955581
• OSTI ID: 867518
• Country of Publication: United States
• Language: English

Related Subjects

bellows
sealed
plug
valve
inlet
passage
outlet
chamber
passages
substantially
shape
rotatably
disposed
therein
shaft
movable
linearly
response
signal
actuator
sealingly
means
located
converting
linear
movement
connected
rotational
various
disclosed
including
helical
thread
mechanism
clevis
rack
pinion
motion
valve chamber
plug valve
rotational movement
rotational motion
rotatably disposed
disposed therein
disclosed including
linear motion
valve actuator
valve plug
sealingly disposed
various means
inlet passage
sealed plug
shaft connected
outlet passage
bellows sealed
bellows seal
linear movement
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