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Title: Valve

Abstract

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 valvemore » 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.« less

Inventors:
 [1]
  1. (Knoxville, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
863542
Patent Number(s):
4195813
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
valve; 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; /251/

Citation Formats

Cho, Nakwon. Valve. United States: N. p., 1980. Web.
Cho, Nakwon. Valve. United States.
Cho, Nakwon. Tue . "Valve". United States. https://www.osti.gov/servlets/purl/863542.
@article{osti_863542,
title = {Valve},
author = {Cho, Nakwon},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

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