CA1062688A - Valve, especially a radiator valve - Google Patents
Valve, especially a radiator valveInfo
- Publication number
- CA1062688A CA1062688A CA256,629A CA256629A CA1062688A CA 1062688 A CA1062688 A CA 1062688A CA 256629 A CA256629 A CA 256629A CA 1062688 A CA1062688 A CA 1062688A
- Authority
- CA
- Canada
- Prior art keywords
- valve
- valve stem
- housing
- threaded member
- sealing ring
- 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.)
- Expired
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
- F16K1/523—Means for additional adjustment of the rate of flow for limiting the maximum flow rate, using a stop
-
- 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
- F16K43/00—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
- G05D23/125—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid the sensing element being placed outside a regulating fluid flow
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Temperature-Responsive Valves (AREA)
- Lift Valve (AREA)
Abstract
ABSTRACT
A radiator valve has a housing carrying a valve stem with plate and loading spring on the valve stem above the valve plate; a first seal bears against the valve stem between the valve plate and the spring. A presetting member is located in the housing and it carries a second seal bearing against the valve stem at a position removed from the valve plate with respect to the first seal.
A radiator valve has a housing carrying a valve stem with plate and loading spring on the valve stem above the valve plate; a first seal bears against the valve stem between the valve plate and the spring. A presetting member is located in the housing and it carries a second seal bearing against the valve stem at a position removed from the valve plate with respect to the first seal.
Description
Field of the Invention The invention relates to a valve,especially a radiator valve, having a pre-setting member and a loading spring for the valve stem, with at least two sealing rings, staggered ; 5 in the longitudinal direction, bearing against the valve stem.
Prior Art Valves of this kind are normally used as thermostat radiator valves and, for reasons of safety, they have two seals arranged one behind the other upon the valve stem, the second seal carrying out its function only when the first is no longer serviceable. Now, if the second, i.e. the outermost seal has to be replaced, this requires the removal of the loading, or tensioning, spring for the valve stem, and the withdrawal of other parts built into the valve. Since this is time consuming lS and therefore costly, it is the purpose of the present invention to provide a valve of the type described above, in which the second seal may be removed at no great cost, especially without removing the valve stem tensioning spring.
Summary of the Invention This purpose may be achieved in that part of the ; presetting member through which the valve stem passes is farther away from the valve plate, or the like, than the loading spring and the second sealing ring, which seals the presetting member in relation to the valve stem, comes automatically at a location on the valve stem outside the loading spring, i.e.
it is farther away from the valve plate, or the like, than the loading spring. As a result of this, the second sealing ring may be replaced without any difficulty by removing the pre-setting member, and all of the other internal parts, especially the loading spring, may be left in place.
According to one particular preferred example of embodiment of the invention, the first sealing ring associated with the valve plate, or the like, is inserted into a cup-shaped ..... , .~. . . . ~ .
element assembled, or more particularly screwed, into the neck area of the valve, the bottom of which separates the interior of the valve from the neck area. In this connection, and according to one very advantageous development of the invention, the bottom of the cup-shaped element rests upon a disc, the outside diameter of which corresponds to the diameter of the said bottom, and which is supported by a step or the like in the valve housing, the valve stem passing concentrically through the said disc and constituting, in conjunction with the bottom of the cup, an internal groove, i.e. a groove associated with the valve stem, for the first sealing ring. This provides advantages both in assembly and - in production. From the production point of view, the advantage is that the radial groove is eliminated and a central passage for the valve stem is sufficient. From the point of view of assembly, this is simplified and accelerated by the fact that the sealing ring need be snapped into the retaining groove, but is merely placed in the expanded portion of the passage.
j The same advantages are provided in another configuration of the invention, in which the disc forms, in conjunction with the bottom of the cup, an external groove for a third sealing ring which seals off the cup-shaped element from the valve housing. The said disc need not necessarily be flat or of the same thickness over its entire width.
According to another characteristic of the .~ :
invention, the grooves for the second and fourth sealing rings are formed by the presetting member and at least one retaining member secured removably thereto. The design of the grooves is therefore comparable with that of the grooves for the first and third sealing rings. Here again it is possible for a common element to form the missing lateral surface for the two radial grooves. A point to which
Prior Art Valves of this kind are normally used as thermostat radiator valves and, for reasons of safety, they have two seals arranged one behind the other upon the valve stem, the second seal carrying out its function only when the first is no longer serviceable. Now, if the second, i.e. the outermost seal has to be replaced, this requires the removal of the loading, or tensioning, spring for the valve stem, and the withdrawal of other parts built into the valve. Since this is time consuming lS and therefore costly, it is the purpose of the present invention to provide a valve of the type described above, in which the second seal may be removed at no great cost, especially without removing the valve stem tensioning spring.
Summary of the Invention This purpose may be achieved in that part of the ; presetting member through which the valve stem passes is farther away from the valve plate, or the like, than the loading spring and the second sealing ring, which seals the presetting member in relation to the valve stem, comes automatically at a location on the valve stem outside the loading spring, i.e.
it is farther away from the valve plate, or the like, than the loading spring. As a result of this, the second sealing ring may be replaced without any difficulty by removing the pre-setting member, and all of the other internal parts, especially the loading spring, may be left in place.
According to one particular preferred example of embodiment of the invention, the first sealing ring associated with the valve plate, or the like, is inserted into a cup-shaped ..... , .~. . . . ~ .
element assembled, or more particularly screwed, into the neck area of the valve, the bottom of which separates the interior of the valve from the neck area. In this connection, and according to one very advantageous development of the invention, the bottom of the cup-shaped element rests upon a disc, the outside diameter of which corresponds to the diameter of the said bottom, and which is supported by a step or the like in the valve housing, the valve stem passing concentrically through the said disc and constituting, in conjunction with the bottom of the cup, an internal groove, i.e. a groove associated with the valve stem, for the first sealing ring. This provides advantages both in assembly and - in production. From the production point of view, the advantage is that the radial groove is eliminated and a central passage for the valve stem is sufficient. From the point of view of assembly, this is simplified and accelerated by the fact that the sealing ring need be snapped into the retaining groove, but is merely placed in the expanded portion of the passage.
j The same advantages are provided in another configuration of the invention, in which the disc forms, in conjunction with the bottom of the cup, an external groove for a third sealing ring which seals off the cup-shaped element from the valve housing. The said disc need not necessarily be flat or of the same thickness over its entire width.
According to another characteristic of the .~ :
invention, the grooves for the second and fourth sealing rings are formed by the presetting member and at least one retaining member secured removably thereto. The design of the grooves is therefore comparable with that of the grooves for the first and third sealing rings. Here again it is possible for a common element to form the missing lateral surface for the two radial grooves. A point to which
- 2 -1~6Z688 special preference is given here is that the retaining member is of a cup-shaped configuration, with one edge of the cup projecting outwardly and the valve spindle passing concentrically through the bottom of the cup. In this case the edge of the cup forms the lower or inner flank of the groove for the second sealing ring. The retaining member must be held immovably in the presetting member in some appropriate manner and, if necessary, it must be secured separately. For example, the connection may be made by means of an annular bead on the retaining member and a corresponding annular groove in the resetting member. Under certain circumstances, the friction between the two parts may be sufficient to hold them. Finally, a screwed connection is also possible.
Description of the Drawings The invention will now be described in accordance with the accompanying drawing which is a vertical section , through an example of an embodiment of the invention.
Description of a Preferred Embodiment The said example of embodiment is a thermostatically controlled radiator valve, although the thermostat cap is not shown. The latter holds the closure element, in the form of valve plate 1, against the force of loading spring 2, in the form of a coil compression spring, in the closed position, in which it rests upon valve seat 4 which is integral with housing 3.
Neck part 5 of valve housing 3 has an internal thread 6 into which a cup-shaped element 7 is screwed, and bottom 8 of the cup, through which valve stem 9 passes ~` 30 concentrically, thus separates interior 10 of the valve from neck part 5. A circular disc 12 lies upon a step 11 in the housing, being pressed thereto by means of cup-shaped element 7.
- Screwed into internal thread 13 of cup-shaped element 7 is a presetting member 14 which is also cup-shaped, but is inverted in relation to element 7, so that base 15 is at the top. Valve stem 9 passes concentrically through the said base 15 of presetting member 14. A first sealing ring 16 and a second sealing ring 17 serve to seal off the valve stem passages through cup-shaped element 7 and presetting element 14. Groove 18 for the first sealing ring 16 is formed by a central bore passing axially through cup bottom 8 on the one hand, and by the inner edge of annular disc 12 on the other hand. A groove for second sealing ring 17 is obtained in a similar manner by means of a central recess on the inside of bottom 15 of presetting member 14 and a retaining member 29. The lat~er is also in the form of a cup bottom 20 thereof, through which valve stem 9 passes concentrically ; constituting the lower side of groove 19.
The outer edge of disc 12, in conjunction with a peripheral groove of rectangular cross section at the outer edge of bottom 9, forms a groove 21 for a third sealing ring 22. A fourth sealing ring 23, located in a ., :
groove 24, is held in a similar manner, the said groove ~' being formed by the radially outwardly projecting edge 25 of retaining member 29 and another peripheral channel of .. : . . .
~ rectangular cross section at the edge of presetting member 14. ~
:,.
~ 25 Valve interior 10 is sealed off by first sealing . .
' ring 16 and third sealing ring 22. If the said first sealing ~ ring fails, the medium, f~or example hot water, can enter ;~ chamber 26. Second sealing ring 17 and fourth sealing ring 23 prevent the meaium from flowing out of chamber 26. One ; 30 end of loading spring 20 bears against bottom 8 of cup~
shaped element 7, while the other end bears against a collar or circlip 27 on valve stem 9. The distance between circlip 27 and the inside of bottom 15 of presetting member 14 also .
.. ~
~62688 corresponds to the maximal lift of valve plate 1. This lift may therefore be altered by screwing in presetting member 14 to a greater or lesser extent. Retaining member 29 has an outwardly projecting, peripheral, annular head 28 engaging ;;i 5 with a corresponding annular groove in presetting member 14 ,~ , `~ and is thus locked. These two parts may also be locked s; together in some other known and appropriate manner.
l ~ .
Assembly of the four sealing rinqs 16, 17, 22, and 23 is simplified by the use of disc 12 and retaining member 29. The same also applies to the machining of the sealing grooves for cup-shaped element 7 and presetting member 14.
... .
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., .
~ 15 .;, .
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.. , . :, ~ 20 , . . . . .
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., . ~,"
,.',1 ~ ~
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.
"
~ - 5 -" ~
~ ~ .
,: . . . . . . - - '
Description of the Drawings The invention will now be described in accordance with the accompanying drawing which is a vertical section , through an example of an embodiment of the invention.
Description of a Preferred Embodiment The said example of embodiment is a thermostatically controlled radiator valve, although the thermostat cap is not shown. The latter holds the closure element, in the form of valve plate 1, against the force of loading spring 2, in the form of a coil compression spring, in the closed position, in which it rests upon valve seat 4 which is integral with housing 3.
Neck part 5 of valve housing 3 has an internal thread 6 into which a cup-shaped element 7 is screwed, and bottom 8 of the cup, through which valve stem 9 passes ~` 30 concentrically, thus separates interior 10 of the valve from neck part 5. A circular disc 12 lies upon a step 11 in the housing, being pressed thereto by means of cup-shaped element 7.
- Screwed into internal thread 13 of cup-shaped element 7 is a presetting member 14 which is also cup-shaped, but is inverted in relation to element 7, so that base 15 is at the top. Valve stem 9 passes concentrically through the said base 15 of presetting member 14. A first sealing ring 16 and a second sealing ring 17 serve to seal off the valve stem passages through cup-shaped element 7 and presetting element 14. Groove 18 for the first sealing ring 16 is formed by a central bore passing axially through cup bottom 8 on the one hand, and by the inner edge of annular disc 12 on the other hand. A groove for second sealing ring 17 is obtained in a similar manner by means of a central recess on the inside of bottom 15 of presetting member 14 and a retaining member 29. The lat~er is also in the form of a cup bottom 20 thereof, through which valve stem 9 passes concentrically ; constituting the lower side of groove 19.
The outer edge of disc 12, in conjunction with a peripheral groove of rectangular cross section at the outer edge of bottom 9, forms a groove 21 for a third sealing ring 22. A fourth sealing ring 23, located in a ., :
groove 24, is held in a similar manner, the said groove ~' being formed by the radially outwardly projecting edge 25 of retaining member 29 and another peripheral channel of .. : . . .
~ rectangular cross section at the edge of presetting member 14. ~
:,.
~ 25 Valve interior 10 is sealed off by first sealing . .
' ring 16 and third sealing ring 22. If the said first sealing ~ ring fails, the medium, f~or example hot water, can enter ;~ chamber 26. Second sealing ring 17 and fourth sealing ring 23 prevent the meaium from flowing out of chamber 26. One ; 30 end of loading spring 20 bears against bottom 8 of cup~
shaped element 7, while the other end bears against a collar or circlip 27 on valve stem 9. The distance between circlip 27 and the inside of bottom 15 of presetting member 14 also .
.. ~
~62688 corresponds to the maximal lift of valve plate 1. This lift may therefore be altered by screwing in presetting member 14 to a greater or lesser extent. Retaining member 29 has an outwardly projecting, peripheral, annular head 28 engaging ;;i 5 with a corresponding annular groove in presetting member 14 ,~ , `~ and is thus locked. These two parts may also be locked s; together in some other known and appropriate manner.
l ~ .
Assembly of the four sealing rinqs 16, 17, 22, and 23 is simplified by the use of disc 12 and retaining member 29. The same also applies to the machining of the sealing grooves for cup-shaped element 7 and presetting member 14.
... .
. , ~ : .
., .
~ 15 .;, .
., , ''' , ~ .
:: .
,....
.. , . :, ~ 20 , . . . . .
~'.`: ' '`' ., .~ , .
., . ~,"
,.',1 ~ ~
... . .
.. ..
;~.
' ,~:
.
"
~ - 5 -" ~
~ ~ .
,: . . . . . . - - '
Claims (3)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A valve having a housing, an inlet and outlet to said housing, a valve seat in said housing between said inlet and said outlet, a valve stem extending from said bousing, said valve stem having a valve plate engageable with said valve seat, fixed seal means between said valve stem and said hous-ing to prevent fluid escaping from the latter, a spring on said valve stem removed from said valve seat with respect to said fixed seal means, said spring lifting said valve plate from said valve seat, a threaded member in said housing above said seal means and surrounding said spring with the upper end of the latter engageable with said threaded member, the latter being adjustable by turning to control the lift of said spring, movable seal means carried by said threaded member to prevent fluid escaping from said housing on fail-ure of said fixed seal means and means containing said movable seal means on said threaded member in fixed relation thereto whilst movable in relation to said valve stem on said adjust-ment of said threaded member.
2. A valve structure according to Claim 1 wherein said movable seal means includes a second sealing ring between said valve stem and said threaded member and a fourth seal-ing ring between said housing and said threaded member, said means containing said movable means being a first flange on said threaded member inwardly directed towards said valve stem and providing a first groove therein for said second sealing ring and a second outwardly directed flange on said threaded member and providing a second groove with said hous-ing, said second groove carrying said fourth sealing ring.
3. A valve structure according to Claim 2 wherein a guide member is located-in said housing, said guide member being interiorly threaded with said threaded member threaded there-in, said fixed seal means including a first sealing ring located between said valve stem and guide member and a third sealing ring located between said guide member and said housing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE7521576 | 1975-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1062688A true CA1062688A (en) | 1979-09-18 |
Family
ID=6653418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA256,629A Expired CA1062688A (en) | 1975-07-08 | 1976-07-08 | Valve, especially a radiator valve |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT346542B (en) |
| CA (1) | CA1062688A (en) |
| CH (1) | CH608286A5 (en) |
| DK (1) | DK308976A (en) |
| FR (1) | FR2317490A1 (en) |
| GB (1) | GB1513503A (en) |
| IT (1) | IT1067071B (en) |
| NL (1) | NL156801C (en) |
| SE (1) | SE421722B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469680A (en) * | 2019-08-27 | 2019-11-19 | 章慧 | A kind of solenoid valve being conveniently replaceable spring |
| RU195454U1 (en) * | 2019-10-30 | 2020-01-29 | Акционерное общество «Машиностроительный завод «Армалит» | INLET VALVE |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19643990C1 (en) * | 1996-10-31 | 1998-07-16 | Danfoss As | Radiator valve and tool for sealing a radiator valve |
| DE29705552U1 (en) | 1997-03-27 | 1997-05-07 | Metallwerke Neheim Goeke & Co Gmbh, 59755 Arnsberg | Regulating valve |
| US5823509A (en) * | 1997-07-11 | 1998-10-20 | Amcast Industrial Corporation | Diaphragm valve with means for adjustably setting the maxium valve opening |
| DE10006326A1 (en) | 2000-02-12 | 2001-08-16 | Gemue Gebr Mueller Appbau Gmbh | Manual drive for shut-off devices |
| EP2375113B1 (en) * | 2010-04-06 | 2012-11-28 | Honeywell Technologies Sarl | Double regulating balancing valve |
| CN116146720B (en) * | 2023-02-17 | 2023-10-20 | 江苏江沅机械有限公司 | Safety control valve |
-
1976
- 1976-06-29 GB GB27058/76A patent/GB1513503A/en not_active Expired
- 1976-07-05 SE SE7607659A patent/SE421722B/en unknown
- 1976-07-06 NL NL7607424.A patent/NL156801C/en not_active IP Right Cessation
- 1976-07-06 CH CH866976A patent/CH608286A5/en not_active IP Right Cessation
- 1976-07-07 IT IT25088/76A patent/IT1067071B/en active
- 1976-07-07 AT AT497276A patent/AT346542B/en not_active IP Right Cessation
- 1976-07-08 CA CA256,629A patent/CA1062688A/en not_active Expired
- 1976-07-08 DK DK308976A patent/DK308976A/en not_active Application Discontinuation
- 1976-07-08 FR FR7620856A patent/FR2317490A1/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469680A (en) * | 2019-08-27 | 2019-11-19 | 章慧 | A kind of solenoid valve being conveniently replaceable spring |
| RU195454U1 (en) * | 2019-10-30 | 2020-01-29 | Акционерное общество «Машиностроительный завод «Армалит» | INLET VALVE |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7607424A (en) | 1977-01-11 |
| FR2317490B1 (en) | 1980-12-26 |
| AT346542B (en) | 1978-11-10 |
| GB1513503A (en) | 1978-06-07 |
| ATA497276A (en) | 1978-03-15 |
| NL156801C (en) | 1981-02-16 |
| SE421722B (en) | 1982-01-25 |
| IT1067071B (en) | 1985-03-12 |
| NL156801B (en) | 1978-05-16 |
| SE7607659L (en) | 1977-01-09 |
| DK308976A (en) | 1977-01-09 |
| CH608286A5 (en) | 1978-12-29 |
| FR2317490A1 (en) | 1977-02-04 |
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