CA2005034A1 - Spherical cock with ball-shaped metallic ceramic stopcock - Google Patents
Spherical cock with ball-shaped metallic ceramic stopcockInfo
- Publication number
- CA2005034A1 CA2005034A1 CA002005034A CA2005034A CA2005034A1 CA 2005034 A1 CA2005034 A1 CA 2005034A1 CA 002005034 A CA002005034 A CA 002005034A CA 2005034 A CA2005034 A CA 2005034A CA 2005034 A1 CA2005034 A1 CA 2005034A1
- Authority
- CA
- Canada
- Prior art keywords
- stopcock
- casing
- spherical
- frames
- pivoting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0668—Single packings
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0657—Particular coverings or materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Joints Allowing Movement (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Abstract A spherical cock has a ball-shaped, metallic or ceramic stopcock arrayed with loose or fixed axle-end pivots or floatingly arrayed within a casing. The stopcock centres itself in the longitudinal and vertical axis between metallic or ceramic surfaces of two seating frames. These frames are mounted in the valve casing so that the spherical surface of the stopcock bears directly on said surfaces of said frames without the use of soft packing. The sealing surfaces of the stopcock and those of the frames are coated or tempered to be hard and to have high abrasion resistance.
Description
~ 3 ~
The invention relates to a spherical cock with a ball-shaped metallic or ceramic stopcock. -~
It is known to construct a spherical cock arrayed in a casing with loose or fixed axle-end pivots or floatingly arrayed therein in such a way that the stopcock centers itself in the longitudinal and vertical axis between seat frames.
The present invention provides spherical cocks having ball-shaped stopcocks for pi.ping which is subjected to high pressures and whose seat frames bear directly on ;~
corresponding opposing surfaces of the stopcock. No additional plastic soft packing both at low and high . :,;: ;. .
pressures as well as at negative pressure (vacuum) is ;
provided. A sealing effect is essentially assured by the ;
surface quality of the mating cock surfaces which are pressed against one another by means of spring tensioning in order to effect closed linkage. ~ ;
According to one aspect of the invention, a ~
..: ~. , :, spherical cock comprises a valve casing with a fluid passageway formed therein, a spherical metallic or ceramic stopcock pivotably mounted in said casing and adapted to close or open said passageway, means for pivoting said stopcock in order to operate same, seating frames with metallic or ceramic surfaces for engaging said stopcock, said frames being mounted in said casing, wherein the -~
spherical surface of said stopcock bears directly on said metallic or ceramic surfaces of said seating frames without the use of soft packing.
,, " ., ~,', ~oa~03~ :
~: `
The invention relates to a spherical cock with a ball-shaped metallic or ceramic stopcock. -~
It is known to construct a spherical cock arrayed in a casing with loose or fixed axle-end pivots or floatingly arrayed therein in such a way that the stopcock centers itself in the longitudinal and vertical axis between seat frames.
The present invention provides spherical cocks having ball-shaped stopcocks for pi.ping which is subjected to high pressures and whose seat frames bear directly on ;~
corresponding opposing surfaces of the stopcock. No additional plastic soft packing both at low and high . :,;: ;. .
pressures as well as at negative pressure (vacuum) is ;
provided. A sealing effect is essentially assured by the ;
surface quality of the mating cock surfaces which are pressed against one another by means of spring tensioning in order to effect closed linkage. ~ ;
According to one aspect of the invention, a ~
..: ~. , :, spherical cock comprises a valve casing with a fluid passageway formed therein, a spherical metallic or ceramic stopcock pivotably mounted in said casing and adapted to close or open said passageway, means for pivoting said stopcock in order to operate same, seating frames with metallic or ceramic surfaces for engaging said stopcock, said frames being mounted in said casing, wherein the -~
spherical surface of said stopcock bears directly on said metallic or ceramic surfaces of said seating frames without the use of soft packing.
,, " ., ~,', ~oa~03~ :
~: `
According to another aspect of the invention, a spherical cock comprises a one-part valve casing with a fluid passageway formed therein; a top cover to close off said casing; a spherical metallic or ceramic stopcock pivotably mounted in said casing and adapted to close or open said passageway; means for pivoting said stopcock in ~ .
order to operate same; seating frames for engaging said :
stopcock, each frame comprising two large rings -~
interconnected by a corrugated tubing spring, said frames being mounted in said one-part casing in such manner that said stopcock and rings can be replaced without removing the cock from the conduit, wherein the spherical surface of said stopcock bears directly on contacting surfaces of said seating frames without the use of soft packing.
According to a further aspect of the invention, a spherical cock comprises a one-part valve casing with a ..
fluid passageway formed therein; a top cover to close off .
and seal said casing; a spherical metallic or ceramic ~.
stopcock pivotably mounted in said casing and adapted to ~ :
close or open said passageway; means for pivoting said stopcock in order to operate same; seating frames for ~:
engaging said stopcock, said frames being mounted in said one-part casing and laterally displaceable in a cavity ' ~;
formed in said casing, said lateral displacement enabling installation and removal of said stopcock; coil springs pressing said seating frames against said stopcock, and ;
sealing rings for sealing the joint between the seating .~
frames and said casing. - :.
20~ )34 - - 3 - -~
The stopcock arrayed in a casing with loose or fixed axle-end pivots or floatingly arrayed therein is arranged in such a way that it centers itself in the longitudinal and vertical axis between metallic seat frames.
Thus the seat frames, which are made of metallic or ceramic ~ ,:
materials, bear directly on corresponding metallic or ;:
ceramic opposing surfaces of the stopcock.
Further features and advantages will be apparent from the following detailed description of preferred ~:
embodiments taken in conjunction with the accompanying drawings.
. . .,:
In the drawings, :~
Figure 1 is a longitudinal cross-section of a spherical cock employing two casing parts and an indexing ~;
bolt;
Figure 2 is a longitudinal cross-section of another embodiment employing two casing parts and an indexing bolt;
Figure 3 is another view, partly in cross-section, of the central portion of the cock of Figure 2;
Figure 4 is a longitudinal cross-section of a further embodiment of a spherical cock with two casing parts ~ ;
and,a stopcock supported by two pivot pins;
Figure 5 is another longitudinal view, partly in cross-section, of a spherical cock employing two casing .:~
parts and fixed pivot pins; ..
Figure 6 is another view, partly in cross-section, of the central part of the cock of Figure 5;
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.... . , ,;
Z~ 03(~
: _ 4 _ ;
Figure 7 is another view, partly in cross-section of the cock of Figure 5;
Figure 8 is a horizontal cross-section of the stopcock and seating frames of Figure 5;
Figure 9 is a cross-sectional detail view of the stopcock of Figure 5 showing sealing rings arrayed on fixed pins of the stopcock;
Figure 10 is a longitudinal view, partly in cross-section, of another embodiment having a one-part casing closed off by a top member; and Figure 11 is a longitudinal view, partly in cross-section, of a further embodiment having a one-part valve casing closed off by a top cover, said view also detailing ~ :
certain sealing rings.
Figure 1 shows a section through the longitudinal axis of a spherical cock constructed in accordance with the ~ ~
invention in which b~th casing parts 1, 2 are interconnected ; ;
by a central thread arrayed in direction of flow while the `
stopcock 10 is mounted in floating position therein. Seat frames 30 are tightly compressed in the casing parts 1, 2.
An indexing bolt 3 is supported in the casing part 1 by means of a conical shoulder and is pressed against by a coil sprlng 8 housed along the longitudinal axis of the bolt.
This spring, with its other end, bears upon the stopcock 10.
Figure 2 shows a cock according to the invention in a section through the longitudinal axis. The casing 1, 2 consists of two parts which are interconnected by means of screws eccentrically arrayed but not shown in this figure.
Cup spring shaped seating frames 30 are maintained in 03~ ~ ~
~ 5 position in their respective casing parts by tightly compressed clamping rings 31. The indexing bolt 3 (for example according to Figure 1) is pressed by a spring 8 via a conical shoulder in the casing part 1 and the spring bears upon the stopcock 10. The seating frames, on their side which is turned away from the sphere, have, as for example in Figure 1, a clearance angle which allows them an elastic transverse movement but which, at the same time, restricts ~-the clearance angle. In this way each seat frame can support itself on the adjacent side of the casing.
Figure 3 depicts another cross-section of the cock according to Figure 2.
Flgure 4 shows, in a longitudinal section, a spherical cock with an asymmetrically divided cock casing ;
1, 2, whose stopcock 10 is guided by two separate pivot plns 4. The seating Erames 30 are slmilarly configured as in Figures 2 and 3. They are tlghtly compressed in both ~
caslng parts 1, 2 and, owing to their shape are able to - ~ :
execute in the longitudinal axls of the casing an elastic :; ~
:..:,~. ~.:
transverse motion, slight but essential to the sealing action. In this example, the upper pivot pin 4 is at the ;;
same time the indexing bolt which bears axially on a conical ;
shoulder in casing part 1, while the conical stopcock 10 itself remains free of axial pressure. In order to activate the stopcock 10 when the upper pin 4 is actuated, provision ~;
is made for a cylindrical wedge sustained by a pin. -, .. .: ,~
Figures 5, 6 and 7 show a vertically, ~` ;
symmetrically divided spherical cock casing 1, within whose `
halves tightly compressed elastic seating frames 30 form the .- .
',', ,, :-XC~ 34 ;: - 6 -seal between the casing and the stopcock 10. Thus the seating frames 30, by virtue of their configuration, are afforded in much the same way as in the embodiments according to Figures 1 to 4, the requlsite slight spring deflection. Additionally, in this cock configuration, elastic sealing rings 19 which are ground on their counter-opposed surfaces and which abutt the plane surfaces 17 on the fixed pins of the stopcock 10 and are tightly connected by compression to the stopcock pins, work to produce the sealing effect between both stopcock pins and the bushings 16 built into the casing part 1 and serving as bearings.
These bushings, in turn, are sealed vis-a-vis the casing half 1, by a three-dimensional circular cord packing 7 in a manner known in the art.
Figure 8 shows the stopcock 10 according to Figure ~ ;
5 and the seatin~ frames 30 in a horizontal cross-section through these co~ponents.
Figure 9 shows the mode of operation of the sealing rings 19 arrayed on the pins of the stopcock 10. ;
The sealing rings have been compressed on the fixed pins of the stopcock 10 in such a way that they remain tight inside the bearing bushings 16 packed in the casing parts when there is a pivoting movement of the stopcock. To this end installation of the sealing rings 19 must be performed under conditions necessitating a pretensioning oE the plane surfaces 17. The bearing bushings 16 have been safeguarded against dirt penetration by soft packing 18.
Figure 10 shows a spherical cock with one-part casing 9 closed off by a top 49 (top entry). The sealing 3~ ~ ~
~ ~;
elements in this case are multi-part and consist of large or massive rings 5, 6 and a corrugated tubular element 32 which, by compressing or welding, are formed, respectively, -~
into one unit whereby the corrugated tubing 32 is designed to enable an axial displacement of the seating frame unit in the valve casing during installation and removal. This -displacement is required for mounting of the spherical ~-stopcock 10 from the top. The corrugated tubing 32 is also intended to function additionally as a spring element for the contact between the seating frame unit 30, 31, 32 and the spherical stopcoc~ 10. The ring packings 13, 14 provided on the top 49 can, where necessary, consist of non-flammable material or C-shaped metal rings. -Figure 11 shows a spherical cock also with a one-part casing 9 closed off by a top cover 49 (top-entry). The seating frames in this embodiment are metallic, sealing ~ ;`
rings or main rings 30. In this configuration, the main :
rings 30 are pressed by coil springs 33 against the ;`
spherical stopcock 10 fixed in the casing 9 and top 49. The ` ~ ~
seating frames 30 are sealed off vis-a-vis the cock casing 1 , ~ `
:: :. ,. :~
by sealing rings in the form of C-shaped, elastic metal rings 11 which are maintained in position on the seating ';~
frames 30 by compressed support rings 12. In like manner, a ;
sealing ring 7 on the casing cover 49 and a sealing ring 13 ; ;
which seals off the indexing bolt 3 against the top cover 49 can consist of C-shaped, elastic metal rings in order to -~
assure incombustibility.
order to operate same; seating frames for engaging said :
stopcock, each frame comprising two large rings -~
interconnected by a corrugated tubing spring, said frames being mounted in said one-part casing in such manner that said stopcock and rings can be replaced without removing the cock from the conduit, wherein the spherical surface of said stopcock bears directly on contacting surfaces of said seating frames without the use of soft packing.
According to a further aspect of the invention, a spherical cock comprises a one-part valve casing with a ..
fluid passageway formed therein; a top cover to close off .
and seal said casing; a spherical metallic or ceramic ~.
stopcock pivotably mounted in said casing and adapted to ~ :
close or open said passageway; means for pivoting said stopcock in order to operate same; seating frames for ~:
engaging said stopcock, said frames being mounted in said one-part casing and laterally displaceable in a cavity ' ~;
formed in said casing, said lateral displacement enabling installation and removal of said stopcock; coil springs pressing said seating frames against said stopcock, and ;
sealing rings for sealing the joint between the seating .~
frames and said casing. - :.
20~ )34 - - 3 - -~
The stopcock arrayed in a casing with loose or fixed axle-end pivots or floatingly arrayed therein is arranged in such a way that it centers itself in the longitudinal and vertical axis between metallic seat frames.
Thus the seat frames, which are made of metallic or ceramic ~ ,:
materials, bear directly on corresponding metallic or ;:
ceramic opposing surfaces of the stopcock.
Further features and advantages will be apparent from the following detailed description of preferred ~:
embodiments taken in conjunction with the accompanying drawings.
. . .,:
In the drawings, :~
Figure 1 is a longitudinal cross-section of a spherical cock employing two casing parts and an indexing ~;
bolt;
Figure 2 is a longitudinal cross-section of another embodiment employing two casing parts and an indexing bolt;
Figure 3 is another view, partly in cross-section, of the central portion of the cock of Figure 2;
Figure 4 is a longitudinal cross-section of a further embodiment of a spherical cock with two casing parts ~ ;
and,a stopcock supported by two pivot pins;
Figure 5 is another longitudinal view, partly in cross-section, of a spherical cock employing two casing .:~
parts and fixed pivot pins; ..
Figure 6 is another view, partly in cross-section, of the central part of the cock of Figure 5;
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.... . , ,;
Z~ 03(~
: _ 4 _ ;
Figure 7 is another view, partly in cross-section of the cock of Figure 5;
Figure 8 is a horizontal cross-section of the stopcock and seating frames of Figure 5;
Figure 9 is a cross-sectional detail view of the stopcock of Figure 5 showing sealing rings arrayed on fixed pins of the stopcock;
Figure 10 is a longitudinal view, partly in cross-section, of another embodiment having a one-part casing closed off by a top member; and Figure 11 is a longitudinal view, partly in cross-section, of a further embodiment having a one-part valve casing closed off by a top cover, said view also detailing ~ :
certain sealing rings.
Figure 1 shows a section through the longitudinal axis of a spherical cock constructed in accordance with the ~ ~
invention in which b~th casing parts 1, 2 are interconnected ; ;
by a central thread arrayed in direction of flow while the `
stopcock 10 is mounted in floating position therein. Seat frames 30 are tightly compressed in the casing parts 1, 2.
An indexing bolt 3 is supported in the casing part 1 by means of a conical shoulder and is pressed against by a coil sprlng 8 housed along the longitudinal axis of the bolt.
This spring, with its other end, bears upon the stopcock 10.
Figure 2 shows a cock according to the invention in a section through the longitudinal axis. The casing 1, 2 consists of two parts which are interconnected by means of screws eccentrically arrayed but not shown in this figure.
Cup spring shaped seating frames 30 are maintained in 03~ ~ ~
~ 5 position in their respective casing parts by tightly compressed clamping rings 31. The indexing bolt 3 (for example according to Figure 1) is pressed by a spring 8 via a conical shoulder in the casing part 1 and the spring bears upon the stopcock 10. The seating frames, on their side which is turned away from the sphere, have, as for example in Figure 1, a clearance angle which allows them an elastic transverse movement but which, at the same time, restricts ~-the clearance angle. In this way each seat frame can support itself on the adjacent side of the casing.
Figure 3 depicts another cross-section of the cock according to Figure 2.
Flgure 4 shows, in a longitudinal section, a spherical cock with an asymmetrically divided cock casing ;
1, 2, whose stopcock 10 is guided by two separate pivot plns 4. The seating Erames 30 are slmilarly configured as in Figures 2 and 3. They are tlghtly compressed in both ~
caslng parts 1, 2 and, owing to their shape are able to - ~ :
execute in the longitudinal axls of the casing an elastic :; ~
:..:,~. ~.:
transverse motion, slight but essential to the sealing action. In this example, the upper pivot pin 4 is at the ;;
same time the indexing bolt which bears axially on a conical ;
shoulder in casing part 1, while the conical stopcock 10 itself remains free of axial pressure. In order to activate the stopcock 10 when the upper pin 4 is actuated, provision ~;
is made for a cylindrical wedge sustained by a pin. -, .. .: ,~
Figures 5, 6 and 7 show a vertically, ~` ;
symmetrically divided spherical cock casing 1, within whose `
halves tightly compressed elastic seating frames 30 form the .- .
',', ,, :-XC~ 34 ;: - 6 -seal between the casing and the stopcock 10. Thus the seating frames 30, by virtue of their configuration, are afforded in much the same way as in the embodiments according to Figures 1 to 4, the requlsite slight spring deflection. Additionally, in this cock configuration, elastic sealing rings 19 which are ground on their counter-opposed surfaces and which abutt the plane surfaces 17 on the fixed pins of the stopcock 10 and are tightly connected by compression to the stopcock pins, work to produce the sealing effect between both stopcock pins and the bushings 16 built into the casing part 1 and serving as bearings.
These bushings, in turn, are sealed vis-a-vis the casing half 1, by a three-dimensional circular cord packing 7 in a manner known in the art.
Figure 8 shows the stopcock 10 according to Figure ~ ;
5 and the seatin~ frames 30 in a horizontal cross-section through these co~ponents.
Figure 9 shows the mode of operation of the sealing rings 19 arrayed on the pins of the stopcock 10. ;
The sealing rings have been compressed on the fixed pins of the stopcock 10 in such a way that they remain tight inside the bearing bushings 16 packed in the casing parts when there is a pivoting movement of the stopcock. To this end installation of the sealing rings 19 must be performed under conditions necessitating a pretensioning oE the plane surfaces 17. The bearing bushings 16 have been safeguarded against dirt penetration by soft packing 18.
Figure 10 shows a spherical cock with one-part casing 9 closed off by a top 49 (top entry). The sealing 3~ ~ ~
~ ~;
elements in this case are multi-part and consist of large or massive rings 5, 6 and a corrugated tubular element 32 which, by compressing or welding, are formed, respectively, -~
into one unit whereby the corrugated tubing 32 is designed to enable an axial displacement of the seating frame unit in the valve casing during installation and removal. This -displacement is required for mounting of the spherical ~-stopcock 10 from the top. The corrugated tubing 32 is also intended to function additionally as a spring element for the contact between the seating frame unit 30, 31, 32 and the spherical stopcoc~ 10. The ring packings 13, 14 provided on the top 49 can, where necessary, consist of non-flammable material or C-shaped metal rings. -Figure 11 shows a spherical cock also with a one-part casing 9 closed off by a top cover 49 (top-entry). The seating frames in this embodiment are metallic, sealing ~ ;`
rings or main rings 30. In this configuration, the main :
rings 30 are pressed by coil springs 33 against the ;`
spherical stopcock 10 fixed in the casing 9 and top 49. The ` ~ ~
seating frames 30 are sealed off vis-a-vis the cock casing 1 , ~ `
:: :. ,. :~
by sealing rings in the form of C-shaped, elastic metal rings 11 which are maintained in position on the seating ';~
frames 30 by compressed support rings 12. In like manner, a ;
sealing ring 7 on the casing cover 49 and a sealing ring 13 ; ;
which seals off the indexing bolt 3 against the top cover 49 can consist of C-shaped, elastic metal rings in order to -~
assure incombustibility.
Claims (23)
1. A spherical cock comprising a valve casing with a fluid passageway formed therein, a spherical metallic or ceramic stopcock pivotably mounted in said casing and adapted to close or open said passageway, means for pivoting said stopcock in order to operate same, seating frames with metallic or ceramic surfaces for engaging said stopcock, said frames being mounted in said casing, wherein the spherical surface of said stopcock bears directly on said metallic or ceramic surfaces of said seating frames without the use of soft packing.
2. A spherical cock according to claim 1 wherein said pivoting means comprises pivoting pins displaceable within said stopcock.
3. A spherical cock according to claim 1 wherein said pivoting means comprises pivoting pins tightly connected to said stopcock.
4. A spherical cock according to claim 1 wherein said pivoting means comprises an indexing bolt.
5. A spherical cock according to claim 1, 2 or 3 wherein said stopcock has sealing surfaces, and said sealing surfaces and said metallic or ceramic surfaces of said seating frames are made to have a special surface quality and hardness to provide high abrasion resistance
6. A spherical cock according to claim 1, 2 or 3 wherein said stopcock has sealing surfaces, and said sealing surfaces and said metallic or ceramic surfaces of said seating frames are coated or tempered to have a special surface quality and hardness to provide high abrasion resistance.
7. A spherical cock according to claim 1, 2 or 3 wherein said seating frames have been compressed into respective adjacent parts of said casing and are shaped in such a way that sides thereof lying next to said casing form a small clearance angle relative to an adjacent surface of the casing which enables each seating frame to undergo a transverse displacement by reason of a transverse force acting on each seating frame in the closed state of the cock, said transverse displacement being restricted in such a way by said clearance angle that each seating frame can support itself within said casing.
8. A spherical cock comprising a one-part valve casing with a fluid passageway formed therein;
a top cover to close off said casing;
a spherical metallic or ceramic stopcock pivotably mounted in said casing and adapted to close or open said passageway;
means for pivoting said stopcock in order to operate same;
seating frames for engaging said stopcock, each frame comprising two large rings interconnected by a corrugated tubing spring, said frames being mounted in said one-part casing in such a manner that said stopcock and rings can be replaced without removing the cock from the conduit, wherein the spherical surface of said stopcock bears directly on contacting surfaces of said seating frames without the use of soft packing.
a top cover to close off said casing;
a spherical metallic or ceramic stopcock pivotably mounted in said casing and adapted to close or open said passageway;
means for pivoting said stopcock in order to operate same;
seating frames for engaging said stopcock, each frame comprising two large rings interconnected by a corrugated tubing spring, said frames being mounted in said one-part casing in such a manner that said stopcock and rings can be replaced without removing the cock from the conduit, wherein the spherical surface of said stopcock bears directly on contacting surfaces of said seating frames without the use of soft packing.
9. A spherical cock according to claim 8 wherein said pivoting means comprises pivoting pins displaceable within said stopcock.
10. A spherical cock according to claim 8 wherein said pivoting means comprises pivoting pins tightly connected to said stopcock.
11. A spherical cock according to claim 8 wherein said pivoting means comprises an indexing bolt.
12. A spherical cock comprising a one-part valve casing with a fluid passageway formed therein;
a top cover to close off and seal said casing;
a spherical metallic or ceramic stopcock pivotably mounted in said casing and adapted to close or open said passageway;
means for pivoting said stopcock in order to operate same;
seating frames for engaging said stopcock, said frames being mounted in said one-part casing and laterally displaceable in a cavity formed in said casing, said lateral displacement enabling installation and removal of said stopcock;
coil springs pressing said seating frames against said stopcock; and sealing rings for sealing the joint between said seating frames and said casing.
a top cover to close off and seal said casing;
a spherical metallic or ceramic stopcock pivotably mounted in said casing and adapted to close or open said passageway;
means for pivoting said stopcock in order to operate same;
seating frames for engaging said stopcock, said frames being mounted in said one-part casing and laterally displaceable in a cavity formed in said casing, said lateral displacement enabling installation and removal of said stopcock;
coil springs pressing said seating frames against said stopcock; and sealing rings for sealing the joint between said seating frames and said casing.
13. A spherical cock according to claim 12 wherein said sealing rings are C-shaped metallic sealing rings and said seating frames comprise a main ring member engaging said stopcock and a support ring, the latter maintaining said sealing rings in position on the main ring member.
14. A spherical cock according to claim 13 including C-shaped metallic sealing rings for sealing the joint between said top cover and said casing.
15. A spherical cock according to claim 12, 13 or 14 wherein said pivoting means comprises pivoting pins displaceable within the stopcock.
16. A spherical cock according to claim 12, 13 or 14 wherein said pivoting means comprises pivoting pins tightly connected to said stopcock.
17. A spherical cock according to claim 14 wherein said pivoting means comprises an indexing bolt.
18. A spherical cock according to claim 17 including C-shaped metallic sealing rings sealing a joint between said indexing bolt and said casing.
19. A spherical cock comprising a one-part valve casing with a fluid passageway forward therein;
a top cover to close off said casing;
a spherical metallic or ceramic stopcock pivotably mounted in said casing and adapted to close or open said passageway;
means for pivoting said stopcock in order to operate same;
seating frames for engaging said stopcock, each frame comprising two large rings interconnected by an elastic, tight, spring-actuated element, said frames being mounted in said one-part casing in such a manner that said stopcock and rings can be replaced without removing the cock from the conduit;
wherein the spherical surface of said stopcock bears directly on contacting surfaces of said seating frames without the use of soft packing.
a top cover to close off said casing;
a spherical metallic or ceramic stopcock pivotably mounted in said casing and adapted to close or open said passageway;
means for pivoting said stopcock in order to operate same;
seating frames for engaging said stopcock, each frame comprising two large rings interconnected by an elastic, tight, spring-actuated element, said frames being mounted in said one-part casing in such a manner that said stopcock and rings can be replaced without removing the cock from the conduit;
wherein the spherical surface of said stopcock bears directly on contacting surfaces of said seating frames without the use of soft packing.
20. A spherical cock according to claim 19 wherein said pivoting means comprises pivoting pins displaceable within said stopcock.
21. A spherical cock according to claim 19 wherein said pivoting means comprises pivoting pins tightly connected to said stopcock.
22. A spherical cock according to claim 19 wherein said pivoting means comprises an indexing bolt.
23. A spherical cock according to any one of claims 19 to 22 wherein said spring-actuated element comprises several reciprocally abutting plate springs tightly joined along counter-opposed contact surfaces thereof.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP88120584.3 | 1988-12-09 | ||
| EP88120584A EP0372117B1 (en) | 1988-12-09 | 1988-12-09 | Cock with a spherical metal or ceramic plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2005034A1 true CA2005034A1 (en) | 1990-06-09 |
Family
ID=8199643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002005034A Abandoned CA2005034A1 (en) | 1988-12-09 | 1989-12-08 | Spherical cock with ball-shaped metallic ceramic stopcock |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0372117B1 (en) |
| JP (1) | JPH02195081A (en) |
| AT (1) | ATE104030T1 (en) |
| BR (1) | BR8905379A (en) |
| CA (1) | CA2005034A1 (en) |
| DE (1) | DE3888972D1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004076884A (en) * | 2002-08-21 | 2004-03-11 | Konan Electric Co Ltd | High hard ball valve |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2202572A5 (en) * | 1972-10-09 | 1974-05-03 | Cailhoux Victor | |
| US4147327A (en) * | 1977-06-16 | 1979-04-03 | Acf Industries, Incorporated | Metallic seals for ball valve |
| US4235418A (en) * | 1978-07-20 | 1980-11-25 | International Telephone And Telegraph Corporation | Ball valve having metal seat rings |
| JPS55107164A (en) * | 1979-02-05 | 1980-08-16 | Tokyo Kousou Kk | Seal device for spherical valve |
| US4388945A (en) * | 1982-01-04 | 1983-06-21 | Jamesbury Corporation | Valve assembly and disassembly device |
| DE3632858A1 (en) * | 1986-09-26 | 1988-04-07 | B & S Metalpraecis Gmbh | BALL VALVE WITH SINTER-CERAMIC VALVE SEAT AND SINTER-CERAMIC VALVE BALL |
| DE8632731U1 (en) * | 1986-12-06 | 1988-01-28 | B + S Metalpraecis Gesellschaft für Metallformgebung mbH, 4650 Gelsenkirchen | Ball valve with sintered ceramic seat rings and sintered ceramic valve ball |
-
1988
- 1988-12-09 DE DE88120584T patent/DE3888972D1/en not_active Expired - Fee Related
- 1988-12-09 EP EP88120584A patent/EP0372117B1/en not_active Expired - Lifetime
- 1988-12-09 AT AT88120584T patent/ATE104030T1/en not_active IP Right Cessation
-
1989
- 1989-10-23 BR BR898905379A patent/BR8905379A/en not_active IP Right Cessation
- 1989-12-08 JP JP1320386A patent/JPH02195081A/en active Pending
- 1989-12-08 CA CA002005034A patent/CA2005034A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE3888972D1 (en) | 1994-05-11 |
| EP0372117A1 (en) | 1990-06-13 |
| JPH02195081A (en) | 1990-08-01 |
| EP0372117B1 (en) | 1994-04-06 |
| ATE104030T1 (en) | 1994-04-15 |
| BR8905379A (en) | 1990-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |