Valve

Patent · Tue Jan 01 04:00:00 EST 1980

OSTI ID:863542

Cho, Nakwon ^[1]

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1. Knoxville, TN

A positive acting valve suitable for operation in a corrosive environment is provided. The valve includes a hollow valve body defining an open-ended bore for receiving two, axially aligned, spaced-apart, cylindrical inserts. One insert, designated the seat insert, terminates inside the valve body in an annular face which lies within plane normal to the axis of the two inserts. An elastomeric O-ring seal is disposed in a groove extending about the annular face. The other insert, designated the wedge insert, terminates inside the valve body in at least two surfaces oppositely inclined with respect to each other and with respect to a plane normal to the axis of the two inserts. An elongated reciprocable gate, movable between the two inserts along a path normal to the axis of the two inserts, has a first flat face portion disposed adjacent and parallel to the annular face of the seat insert. The gate has a second face portion opposite to the first face portion provided with at least two oppositely inclined surfaces for mating with respective inclined surfaces of the wedge insert. An opening is provided through the gate which registers with a flow passage through the two inserts when the valve is open. Interaction of the respective inclined surfaces of the gate and wedge insert act to force the first flat face portion of the gate against the O-ring seal in the seat insert at the limits of gate displacement where it reaches its respective fully open and fully closed positions.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
• DOE Contract Number: W-7405-ENG-26
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4195813
• OSTI ID: 863542
• Country of Publication: United States
• Language: English

Related Subjects

/251/
acting
acting valve
adjacent
aligned
annular
axially
axially align
axially aligned
axis
bore
closed
closed position
closed positions
corrosive
corrosive environment
cylindrical
cylindrical insert
defining
designated
displacement
disposed
disposed adjacent
elastomeric
elongated
environment
extending
flat
flow
flow passage
force
gate
groove
groove extending
hollow
inclined
inclined surface
inclined surfaces
insert
inserts
inside
interaction
lies
limits
mating
movable
normal
o-ring
o-ring seal
open-ended
operation
opposite
oppositely
parallel
passage
path
plane
plane normal
portion
portion disposed
positions
positive
provided
reaches
receiving
reciprocable
registers
respect
respective
seal
seat
spaced-apart
suitable
surfaces
terminates
valve
wedge