Bellows sealed plug valve

Patent · Mon Jan 01 04:00:00 EST 1990

OSTI ID:867518

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

/251/
actuator
bellows
bellows seal
bellows sealed
chamber
clevis
connected
converting
disclosed
disclosed including
disposed
disposed therein
helical
including
inlet
inlet passage
linear
linear motion
linear movement
linearly
located
means
mechanism
motion
movable
movement
outlet
outlet passage
passage
passages
pinion
plug
plug valve
rack
response
rotatably
rotatably disposed
rotational
rotational motion
rotational movement
sealed
sealed plug
sealingly
sealingly disposed
shaft
shaft connected
shape
signal
substantially
therein
thread
valve
valve actuator
valve chamber
valve plug
various
various means