US2575875A - High-temperature gas valve - Google Patents

High-temperature gas valve Download PDF

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US2575875A
US2575875A US332948A US2575875A US 2575875 A US2575875 A US 2575875A US 332948 A US332948 A US 332948A US 2575875 A US2575875 A US 2575875A
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pipe
plates
valve
disk
stem
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Fred H Johnson
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United States Steel Corp
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United States Steel Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K49/00—Means in or on valves for heating or cooling
    • F16K49/005—Circulation means for a separate heat transfer fluid
    • F16K49/007—Circulation means for a separate heat transfer fluid located within the obturating element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6416—With heating or cooling of the system
    • Y10T137/6579—Circulating fluid in heat exchange relationship

Definitions

  • This invention relates to valves for controlling flow of high temperature gases and particularly to water cooled closure disks embodied in such valves.
  • An object of the invention is to provide gas valve closure disks having improved and highly efficient means for circulating cooling water therethrough.
  • a further object of the invention is to provide improved gas valve closure disks of metal construction in which the exposed faces are insulated with refractory material for protection against high temperatures.
  • a further object of the invention is to provide improved valve closure disks of simplified construction having continuously water cooled sealing means for engagement with valve seats.
  • Figure l is a vertical sectional view through a gas valve having a closure disk embodying features of the present invention.
  • Figure 2 is an enlarged vertical sectional view of a portion of the closure disk shown in Figure 1.
  • Figure 3 is a top plan view with parts cut away, illustrating a portion of the improved closure disk.
  • FIG. 1 there is shown at It a portion of a valve body adapted to control flow of hot gases, as for example the hot air blast to a metallurgical blast furnace.
  • the body contains an annular seat [2. Said seat and body may be of any conventional design and hence are not shown nor described in greater detail.
  • a closure disk l3, constructed in accordance with the present invention, is cooperable with the upper face of seat I! to close the valve against fiow of gases.
  • Disk I 3 is fixed to the lower end of a stem ll which may be raised and lowered by any suitable external operating mechanism, not shown.
  • disk I3 comprises a hollow annular; pipe l l which extends around the circumferenceiof-the disk and is tangentially engag'eable iwithuseat -li to seal the valve.
  • Said pipe has a'circum erential opening in its upper region, opposite siting region.
  • a lower dome shaped plate Ilisjoinedto the inner circumferential edge of theiope'ning in the pipe, and an upper cone shaped plate I1 is joined to the outer circumferential edge.
  • the lower end of stem I4 is Joined to upper plate I'I.
  • Stem I4 is tubular and carries a concentric water inlet tube It which terminates slightly above plate It.
  • a central dome shaped battle I9 is fixed to the lower end of tube II and at its circumference carries a circular flange III which extends downwardly within pip'eglfi through the circumferential opening is defines water inlet and discharge orifices.
  • a plurality of radial vanes II extend out from tube I8 between baille l9 and plate l6, and similar radial vanes 22 extend'between baille l9 and plate l1. Both sets of radial varies terminate approximately in line with the circumferential edge of plate II.
  • the radia-l vanes function both to position dome shaped baille it between plates I 6 and I! and to dirct'flowof cooling water through the disk.
  • valve water For cooling the valve water is introduced through tube It and flows through the passages which are defined by lower plate It, baffle I9 and radialvanes 2
  • the water is discharged from pipe I 5 via the passages which are defined by upper plate l1, baffle l9 and radial vanes and then through stem H.
  • the crosssectional area of tube It is at least as great as the total inlet orifice area from the lower passages into pipe IS, in order not to retard water circulation.
  • the areas of the inlet and discharge orifices of pipe are substantially equal. The flow of water thus continuously cools pipe I! throughout its circumference.
  • a dome shaped insulation block 24 of refractory material is fixed to the underface of plate It.
  • a conical insulation block 25 of similar refractory material is fixed to the upper face of plate I'I.
  • pipe l5 carries external circumferential wings 26 and 21 for retaining said insulation blocks.
  • pipe 15 may flex slightly at its juncture with lower plate IS-to furnish a close fit against the seat.
  • the line of juncture may be necked-down" slightly as indicated at 28 in Figure 2 to assist such flexing.
  • any such flexing must not be of suflicient magnitude to crack insulation block 24. 7
  • valve disk for valves adapted to control the fiow of high temperature gases.
  • the valve disk has a highly efficient water circulating system in which all metal parts are continuously cooled and the exposed metal parts are protected insofar as possible by refractory insulation.
  • the sealing means shown provides a complete seal against passage of gases 5; when the valve is closed.
  • a body an annular seat in said body, a closure disk cooperable with said seat to close the valve, and a tubular stem joined to said disk for operating the valve
  • said closure disk including an annular pipe extending around the circumference of the disk and engageable with said seat and having a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, one of said plates being joined to said stem, a tube carried within the bore of said stem, a baffle fixed to the end of said tube and disposed in spaced relation between said plates and having a circumferential flange extending into said pipe through said opening, and a plurality of radial vanes extending outwardly from said tube in the spaces between said bafile and said plates, said baifie and saidvanes directing circulation of cooling water through said pipe.
  • a body in said body, an annular seat in said body, a closure disk cooperable with said seat to close the valve, and a tubular stem joined to said disk for operating the valve
  • said closure disk including an annular pipe extending around the circumference of the disk and engageable with said seat and having a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, one of said plates being joined to said stem, a tube carried within the bore of said stem, a continuous baffle fixed to the end of said tube and disposed in spaced relation between said plates and having a continuous circumferential flange extending into said pipe through said opening, said flange directing circulation of cooling water through said pipe uniformly throughout its circumference, and insulation blocks of refractory material fixed to the outer faces of said plates.
  • a body in said body, an annular seat in said body, a closure disk cooperable with said seat to close the valve, and a tubular stem joined to said disk for operating the valve
  • said closure disk including an annular pipe extending around the circumference of the disk and engageable with said seat and having a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, one of said plates being joined to said stem, 9.
  • water inlet tube carried within the bore of said stem, a baflie fixed to the end of said tube and disposed in spaced relation between said plates and having a circumferential flange extending uito said pipe through said opening delinlng water inlet and discharge orifices, and a plurality of radial vanes extending outwardly from said tube in the spaces between said Dame and said plates and positioning said baiiie, said heme and said vanes directing circulation of cooling water through said pipe and discharging through said stem, the cross-sectional area or said water inlet tube being at least as great as the total inlet orifice area to said annular pipe.
  • a bouy in a valve, a bouy, an annular seat in said body, a closure disk cooperable with said seat to close the valve, and a tubular stem Joined to said disk for operating the valve, said closure disk including an annular pipe extending around the circumlei'ence OI the disk and engageable with Sula Seat 4110.
  • a body an annular seat in said body, a closure disk cooperable with said seat to close the valve, and a tubular stem joined to said disk for operating the valve
  • said closure disk including an annular pipe extending around the circumference of the disk and engageable with said seat and having a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, one of said plates being joined to said stem, a water inlet tube carried within the bore of said stem, a baflie fixed to the end of said tube and disposed in spaced relation between said plates and having a circumferential flange extending into said pipe through said opening defining water inlet and discharge orifices, and a plurality of radial vanes extending outwardly from said tube in the spaces between said bailie and said plates and positioning said baflie, said bafile and said vanes directing circulation of cooling water through said pipe and discharging through said stem, the cross-sectional area of said water inlet tube being at least
  • a valve disk and. stem combination comprising an annular pipe extending around the circumference of the disk and having a seating region which is adapted to engage a valve seat and a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, the stem being tubular and one of said plates being joined thereto, a tube carried within the bore of the stem, and a continuous baflle fixed to the end of said tube and disposed in spaced relation between said plates and having a continuous circumferential flange extending into said pipe through said opening, said bafiie directing circulation of cooling water through said pipe uniformly throughout its circumference.
  • a valve disk and stem combination comprising an annular pipe extending around the circumierence of the disk and having a seating region which is adapted to engage a valve seat and a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, the stem being tubular and one of said plates being joined thereto, a tube carried withinthe bore of the stem, a baflie fixed to the end of said tube and disposed in spaced relation between said plates and having a circumferential flange extending into said pipe through said opening, and a plurality of radial vanes extending outwardly from said tube in the spaces between said battle and said plates, said baflie and said vanes directing circulation of cooling water through said pipe.

Description

1951 F. H. JOHNSON HIGH-TEMPERATURE GAS VALVE Filed Jan. 20, 1948 Fred H Ja/zrzsorz Patented Nov, 20, 1951 UNITED STATES PATENT OFFICE United States Steel Com New Jersey I pony, a corporation of Application January 20, ms, Serial No. 3.329
8 Claims. (01. 251-159) This invention relates to valves for controlling flow of high temperature gases and particularly to water cooled closure disks embodied in such valves.
An object of the invention is to provide gas valve closure disks having improved and highly efficient means for circulating cooling water therethrough. V
A further object of the invention is to provide improved gas valve closure disks of metal construction in which the exposed faces are insulated with refractory material for protection against high temperatures.
A further object of the invention is to provide improved valve closure disks of simplified construction having continuously water cooled sealing means for engagement with valve seats.
In accomplishing these and other objects of the present invention, I have provided improved details of structure. a preferred form of which is shown in the accompanying drawing, wherein:
Figure l is a vertical sectional view through a gas valve having a closure disk embodying features of the present invention.
Figure 2 is an enlarged vertical sectional view of a portion of the closure disk shown in Figure 1.
Figure 3 is a top plan view with parts cut away, illustrating a portion of the improved closure disk.
Referring more in detail to the drawing:
In Figure 1 there is shown at It a portion of a valve body adapted to control flow of hot gases, as for example the hot air blast to a metallurgical blast furnace. The body contains an annular seat [2. Said seat and body may be of any conventional design and hence are not shown nor described in greater detail.
A closure disk l3, constructed in accordance with the present invention, is cooperable with the upper face of seat I! to close the valve against fiow of gases. Disk I 3 is fixed to the lower end of a stem ll which may be raised and lowered by any suitable external operating mechanism, not shown.
As best shown in Figure 2, disk I3 comprises a hollow annular; pipe l l which extends around the circumferenceiof-the disk and is tangentially engag'eable iwithuseat -li to seal the valve. Said pipe has a'circum erential opening in its upper region, opposite siting region. A lower dome shaped plate Ilisjoinedto the inner circumferential edge of theiope'ning in the pipe, and an upper cone shaped plate I1 is joined to the outer circumferential edge. The lower end of stem I4 is Joined to upper plate I'I. Stem I4 is tubular and carries a concentric water inlet tube It which terminates slightly above plate It. A central dome shaped baiile I9 is fixed to the lower end of tube II and at its circumference carries a circular flange III which extends downwardly within pip'eglfi through the circumferential opening is defines water inlet and discharge orifices.
Figure 3, a plurality of radial vanes II extend out from tube I8 between baille l9 and plate l6, and similar radial vanes 22 extend'between baille l9 and plate l1. Both sets of radial varies terminate approximately in line with the circumferential edge of plate II. The radia-l vanes function both to position dome shaped baille it between plates I 6 and I! and to dirct'flowof cooling water through the disk.
For cooling the valve water is introduced through tube It and flows through the passages which are defined by lower plate It, baffle I9 and radialvanes 2| and then into pipe Ill. The water is discharged from pipe I 5 via the passages which are defined by upper plate l1, baffle l9 and radial vanes and then through stem H. The crosssectional area of tube It is at least as great as the total inlet orifice area from the lower passages into pipe IS, in order not to retard water circulation. Preferably the areas of the inlet and discharge orifices of pipe it are substantially equal. The flow of water thus continuously cools pipe I! throughout its circumference.
A dome shaped insulation block 24 of refractory material is fixed to the underface of plate It. A conical insulation block 25 of similar refractory material is fixed to the upper face of plate I'I. Preferably pipe l5 carries external circumferential wings 26 and 21 for retaining said insulation blocks.
When the valve disk is seated against seat l2, pipe 15 may flex slightly at its juncture with lower plate IS-to furnish a close fit against the seat. The line of juncture may be necked-down" slightly as indicated at 28 in Figure 2 to assist such flexing. However, any such flexing must not be of suflicient magnitude to crack insulation block 24. 7
From the foregoing description, it is seen that I have provided an improved closure disk for valves adapted to control the fiow of high temperature gases. The valve disk has a highly efficient water circulating system in which all metal parts are continuously cooled and the exposed metal parts are protected insofar as possible by refractory insulation. The sealing means shown provides a complete seal against passage of gases 5; when the valve is closed.
the circumference of the disk and engageable with said seat and having a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at theedges of said opening, one of said plates being joined to said stem, a tube carried within the bore of said stem, and a continuous baffle fixed to the end of said tube and disposed in spaced relation between said plates and having a continuous circumferential flange extending into said pipe through said opening, said baffle directing circulation of cooling water through said pipe uniformly throughout its circumference.
2. In a valve, a body, an annular seat in said body, a closure disk cooperable with said seat to close the valve, and a tubular stem joined to said disk for operating the valve, said closure disk including an annular pipe extending around the circumference of the disk and engageable with said seat and having a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, one of said plates being joined to said stem, a tube carried within the bore of said stem, a baffle fixed to the end of said tube and disposed in spaced relation between said plates and having a circumferential flange extending into said pipe through said opening, and a plurality of radial vanes extending outwardly from said tube in the spaces between said bafile and said plates, said baifie and saidvanes directing circulation of cooling water through said pipe.
3. In a valve, a body, an annular seat in said body, a closure disk cooperable with said seat to close the valve, and a tubular stem joined to said disk for operating the valve, said closure disk including an annular pipe extending around the circumference of the disk and engageable with said seat and having a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, one of said plates being joined to said stem, a tube carried within the bore of said stem, a continuous baffle fixed to the end of said tube and disposed in spaced relation between said plates and having a continuous circumferential flange extending into said pipe through said opening, said flange directing circulation of cooling water through said pipe uniformly throughout its circumference, and insulation blocks of refractory material fixed to the outer faces of said plates.
4. In a valve, a body, an annular seat in said body, a closure disk cooperable with said seat to close the valve, and a tubular stem joined to said disk for operating the valve, said closure disk including an annular pipe extending around the circumference of the disk and engageable with said seat and having a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, one of said plates being joined to said stem, 9.
water inlet tube carried within the bore of said stem, a baflie fixed to the end of said tube and disposed in spaced relation between said plates and having a circumferential flange extending uito said pipe through said opening delinlng water inlet and discharge orifices, and a plurality of radial vanes extending outwardly from said tube in the spaces between said Dame and said plates and positioning said baiiie, said heme and said vanes directing circulation of cooling water through said pipe and discharging through said stem, the cross-sectional area or said water inlet tube being at least as great as the total inlet orifice area to said annular pipe.
b. in a valve, a bouy, an annular seat in said body, a closure disk cooperable with said seat to close the valve, and a tubular stem Joined to said disk for operating the valve, said closure disk including an annular pipe extending around the circumlei'ence OI the disk and engageable with Sula Seat 4110. having a cll'tulilitl'ciltldl opening opposite its seating region, a pair of spaced plates oined to said pipe at tne edges or said opening, one of said plates being joined to said stem, a tune carried within the bore of said stem, a oaiiie fixed to the end of said tube and disposed in spaced relation between said plates and having a circumferential flange extending into said pipe through said opening defining water inlet and discharge orifices, and a plurality of radial vanes extending outwardly from said tube in tne spaces between said battle and said plates and positioning said baflle, said baflie and said vanes directing circulation of cooling water through said pipe, the line of juncture between said pipe and one of said plates being necked-down slightly to permit flexing.
6. In a valve, a body, an annular seat in said body, a closure disk cooperable with said seat to close the valve, and a tubular stem joined to said disk for operating the valve, said closure disk including an annular pipe extending around the circumference of the disk and engageable with said seat and having a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, one of said plates being joined to said stem, a water inlet tube carried within the bore of said stem, a baflie fixed to the end of said tube and disposed in spaced relation between said plates and having a circumferential flange extending into said pipe through said opening defining water inlet and discharge orifices, and a plurality of radial vanes extending outwardly from said tube in the spaces between said bailie and said plates and positioning said baflie, said bafile and said vanes directing circulation of cooling water through said pipe and discharging through said stem, the cross-sectional area of said water inlet tube being at least as great as the total inlet orifice area to said annular pipe, the line of juncture between said pipe and one of said plates being necked-down slightly to permit flexing.
7. A valve disk and. stem combination comprising an annular pipe extending around the circumference of the disk and having a seating region which is adapted to engage a valve seat and a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, the stem being tubular and one of said plates being joined thereto, a tube carried within the bore of the stem, and a continuous baflle fixed to the end of said tube and disposed in spaced relation between said plates and having a continuous circumferential flange extending into said pipe through said opening, said bafiie directing circulation of cooling water through said pipe uniformly throughout its circumference.
8. A valve disk and stem combination comprising an annular pipe extending around the circumierence of the disk and having a seating region which is adapted to engage a valve seat and a circumferential opening opposite its seating region, a pair of spaced plates joined to said pipe at the edges of said opening, the stem being tubular and one of said plates being joined thereto, a tube carried withinthe bore of the stem, a baflie fixed to the end of said tube and disposed in spaced relation between said plates and having a circumferential flange extending into said pipe through said opening, and a plurality of radial vanes extending outwardly from said tube in the spaces between said battle and said plates, said baflie and said vanes directing circulation of cooling water through said pipe.
FRED H. JOHNSON.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 267,234 Long Nov. 7, 1882 548,636 Fuller Oct. 29, 1895 659,805 Baker Oct. 16, 1900 723,582 Byrnes Mar. 24, 1903 997,461 McCarthy July 11, 1911 1,323,328 Slick Dec. 2, 1919 1,873,119 Griswold Aug. 23, 1932 1,953,611 Jardine Apr. 3, 1934 2,204,724 Cope June 18, 1940 2,446,196 Sitney Aug. 3, 1948
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1023047B (en) * 1954-03-31 1958-01-23 Heinrich Welland Steam converting valve for hot steam cooling
DE1048928B (en) * 1954-06-26 1959-01-22 Heinrich Welland Steam converting valve for hot steam cooling
US2920859A (en) * 1952-06-14 1960-01-12 Bendix Aviat Corp Balanced valve means
US3019809A (en) * 1960-09-13 1962-02-06 Ipsen Ind Inc Combined vacuum valve and cold trap
DE1152585B (en) * 1962-01-02 1963-08-08 Gako Ges Fuer Gas Kohle Und Oe Rotary slide valve with liquid separator for hot gases
US3147590A (en) * 1961-03-16 1964-09-08 Thompson Ramo Wooldridge Inc Reaction motor with nozzle vector control having ablative port means and cooled valve means
DE1177889B (en) * 1960-01-27 1964-09-10 Inland Steel Co Valve cooled by coolant circulation
US3259143A (en) * 1963-11-06 1966-07-05 Koppers Co Inc Cooled valve for high temperature gases
US3411528A (en) * 1965-06-03 1968-11-19 Yawata Iron & Steel Co Stopper for ladle with air-cooled head
US4146213A (en) * 1977-01-24 1979-03-27 Zimmermann & Jansen Hot blast or hot gas valve
US4270931A (en) * 1978-07-07 1981-06-02 Veb Gaskombinat Schwarze Pumpe Cooling arrangement for the locking device in pressure gasification reactors
US4381795A (en) * 1981-03-02 1983-05-03 Dayco Corporation Diverter valve construction and method of making same
US20170342853A1 (en) * 2016-05-19 2017-11-30 Hamilton Sundstrand Corporation In-line shutoff valves

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US267234A (en) * 1882-11-07 Valve
US548636A (en) * 1895-10-29 Valve mechanism for controlling hot-air blasts
US659805A (en) * 1900-03-01 1900-10-16 David Baker Hot-blast valve.
US723582A (en) * 1902-07-30 1903-03-24 Clarence P Byrnes Water-cooled valve.
US997461A (en) * 1910-03-16 1911-07-11 Felix Mccarthy Hot-blast valve.
US1323328A (en) * 1918-03-01 1919-12-02 Edwin E Slick Hot-blast valve.
US1873119A (en) * 1927-07-20 1932-08-23 Doherty Res Co Air cooled valve and valve seat
US1953611A (en) * 1931-02-16 1934-04-03 Wilcox Rich Corp Oil cooled valve
US2204724A (en) * 1938-07-22 1940-06-18 Cope Harold Valve seat
US2446196A (en) * 1945-03-20 1948-08-03 Sitney Massey Double seal valve

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US267234A (en) * 1882-11-07 Valve
US548636A (en) * 1895-10-29 Valve mechanism for controlling hot-air blasts
US659805A (en) * 1900-03-01 1900-10-16 David Baker Hot-blast valve.
US723582A (en) * 1902-07-30 1903-03-24 Clarence P Byrnes Water-cooled valve.
US997461A (en) * 1910-03-16 1911-07-11 Felix Mccarthy Hot-blast valve.
US1323328A (en) * 1918-03-01 1919-12-02 Edwin E Slick Hot-blast valve.
US1873119A (en) * 1927-07-20 1932-08-23 Doherty Res Co Air cooled valve and valve seat
US1953611A (en) * 1931-02-16 1934-04-03 Wilcox Rich Corp Oil cooled valve
US2204724A (en) * 1938-07-22 1940-06-18 Cope Harold Valve seat
US2446196A (en) * 1945-03-20 1948-08-03 Sitney Massey Double seal valve

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920859A (en) * 1952-06-14 1960-01-12 Bendix Aviat Corp Balanced valve means
DE1023047B (en) * 1954-03-31 1958-01-23 Heinrich Welland Steam converting valve for hot steam cooling
DE1048928B (en) * 1954-06-26 1959-01-22 Heinrich Welland Steam converting valve for hot steam cooling
DE1177889B (en) * 1960-01-27 1964-09-10 Inland Steel Co Valve cooled by coolant circulation
US3019809A (en) * 1960-09-13 1962-02-06 Ipsen Ind Inc Combined vacuum valve and cold trap
US3147590A (en) * 1961-03-16 1964-09-08 Thompson Ramo Wooldridge Inc Reaction motor with nozzle vector control having ablative port means and cooled valve means
DE1152585B (en) * 1962-01-02 1963-08-08 Gako Ges Fuer Gas Kohle Und Oe Rotary slide valve with liquid separator for hot gases
US3259143A (en) * 1963-11-06 1966-07-05 Koppers Co Inc Cooled valve for high temperature gases
US3411528A (en) * 1965-06-03 1968-11-19 Yawata Iron & Steel Co Stopper for ladle with air-cooled head
US4146213A (en) * 1977-01-24 1979-03-27 Zimmermann & Jansen Hot blast or hot gas valve
US4270931A (en) * 1978-07-07 1981-06-02 Veb Gaskombinat Schwarze Pumpe Cooling arrangement for the locking device in pressure gasification reactors
US4381795A (en) * 1981-03-02 1983-05-03 Dayco Corporation Diverter valve construction and method of making same
US20170342853A1 (en) * 2016-05-19 2017-11-30 Hamilton Sundstrand Corporation In-line shutoff valves
US10001026B2 (en) * 2016-05-19 2018-06-19 Hamilton Sunstrand Corporation In-line shutoff valves

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