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