GB2517030A - Safety Group with Expansion vessel - Google Patents
Safety Group with Expansion vessel Download PDFInfo
- Publication number
- GB2517030A GB2517030A GB1409501.2A GB201409501A GB2517030A GB 2517030 A GB2517030 A GB 2517030A GB 201409501 A GB201409501 A GB 201409501A GB 2517030 A GB2517030 A GB 2517030A
- Authority
- GB
- United Kingdom
- Prior art keywords
- expansion vessel
- backflow preventer
- housing
- connection
- assembly according
- 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.)
- Withdrawn
Links
- 239000003651 drinking water Substances 0.000 claims abstract description 22
- 235000020188 drinking water Nutrition 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/078—Combined units with different devices; Arrangement of different devices with respect to each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
- F24D3/1016—Tanks having a bladder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/0278—Expansion vessels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Fluid Mechanics (AREA)
- Check Valves (AREA)
Abstract
A fitting assembly for drinking water heaters comprises a housing 22; (122 figure 7) with an inlet 24; (124 figure 7) adapted to be connected to a drinking water supply and an outlet 26; (126 figure 7) adapted to be connected to a drinking water heater; a safety valve 16; and anexpansion vessel 12; (112 figure 7). The assembly is characterized in that the connection of the expansion vessel 12; (112 figure 7) to the safety valve is provided by a pipe connection (56, 68 figure 3); (168 figure 7) where one flow direction is flowed through a passage (68 figure 3); (168 figure 7) which is provided within a passage (56 figure 3) where the flow direction is in the opposite direction.
Description
SAFETY GROUP WITH EXPANSION VESSEL
The invention relates to a fitting assembly for drinking water heaters comprising (a) a housing with an inlet adapted to be connected to a drinking water supply and an outlet adapted to b! connected to a drinking water heater; (b) a safety valve; and (c) *an expansion vessel.
Such assemblies are also known as safety group. Expansion vessels are provided with a diaphragm separating a pressurized gas chamber from a water filled. cavity; The connection fitting is provided with a flow line connecting the inlet connection with the cavity and a return line connecting the cavity with the outlet connection of the connection fitting., The return line can be coaxially arranged around the flow line.
If water is heated in a drinking water heater it expands against the pressure in the pressurized gas chamber. The expansion water must not be drained. Thereby water tosses are avoided.
Expansion vessels for drinking water heaters are known from DE 42 42 036 B4, for example, and are sold by the applicant under the product name "Sicherheitscenter 4807".
An expansion vessel is usually very voluminous and heavy. Often there are only a few places where there is sufficient space for such an expansion vessel,. On the other hand the expansion vessel shall have a flow' therethrough as often as possible and be installed near the housing of the safety group connected to thepipe.
It is an object of the invention to provide an assembly which enables a more flexible installation of the expansion vessel. According to the invention this object is achieved in that the connection of the expansion vessel to the safety valve is provided by a pipe connection where one flow direction is flowed through a passage which is provided within a passage where the flow direction is directed' in the opposite direction. In particular the flow can be guided through a flexible tube inside a pipe to the expansion vessel. The length of the tube-in-pipe-connection as well as the curvature can be adapted to the local conditions by the plumber. Thereby, only one connection pipe must be bent. The tube guided therein is flexible anyway. The pipe itself, installed from the drinking water suply through the safety group to the drinking water heater can extend * along the desired path independent of the position of the expansion vessel and the path must not be changed.
Preferably, the expansion vessel is directly connected to a socket of the housing by the pipe connection.
In a particularly preferred modification of the invention a portion of the flow passing the safety group is directed through the expansion vessel and the pipe connection of the expansion vessel with the safety group. Thereby, stagnation and the formation of germs * is avoided. A tube connection piece can be provided in the housing for this purpose which is provided with a bumper plate, the tube connection piece adapted to direct a portion of the flow into the tube. It is understood, however, that different assemblies directing the flow through the expansion vessel are also suitable. In particular, a bumper plate can be inserted in a differerit way and must not be integrated into the tube connection piece.
In a further modification of the invention a pressure reducer is provided at a housing socket upstream of the pipe connection. The inlet pressure can be controlled to adapt a desired value, such as, for example, 80% of the reaction pressure of the safety valve.
In a further modification of the invention a backflow preventer is provided between the inlet and the outlet. Thereby, it is avoided that water flows from. the installatiOn back to * the drinking water supply.
* In a further modification of th invention it is provided that * (a) * a first badkflow preventer is provided upstream of the pipe connection of the expansion vessel whereby the entire water flow directed through thesafety group is also directed through the first backflow preventer, (b) a second backflow preventer is. provided downstream of the first backflow * preventer, and * **. **.
(c) * the pipe connection of the expansion vessel forms a bypass for the second backflow preventer whereby the flow passing the first backflow preventer flows either through the expansion vessel or through the expansion vessel and the second backflow preventer. * . * * With the first backflow preventer it is ensured that no water can flow from the installation back into the drinking water supply. The second backflow preventer effects that the entire flow is at first directed through the expansion vessel until it is strong enough to *open the second backflow preventer. In such a way, stagnation in the expansion vessel * is avoided even with small flows. Depending on the embodiment the use of. two backflow preventers renders the bumper plate unnecessary.
Preferably, the second backflow preventer opens against the force of a spring which is * larger than the force of the spring in the first backflow preventer.
* A particularly advantageous mpdification is achieved if the valve seat of the second backflow preventer is formed by the housing and a valve closing body of the second backflow preventer additionally opens the pipe connection of the expansion vessel upon opening. For example, the pipe connection of the expansion vessel can be positioned on the side behind the vale seat of the second backflow preventer. If the valve closing body is moved in an axial direction and opens the backflow preventer valve the pipe connection is opened simultaneously.
* . Further modifications of the invention are subject matter of the subclaims. Embodiments are described below in greater detail with reference to the accompanying drawings.
Fig.i is a perspective view of a safety valve with expansion vessel connected thereto. . Fig.2 is a cross sectional view of the assembly of fig.1.
Fig:3 * shows a detail of figure 2 with the connection between the expansion vessel and connection tube ii an enlarged representation. * Fig;4 shows a detail of figure 2 with the connection between the expansion vessel and connection tube in an enlarged representation.
* . Fig.5 is a perspective view of the tube connection piece on the side of the safety group.
* * Fig6 isa detail where the connection of the tube with the expansion is shown in a perspective view. * * * * * * * Fig.7 is a cross sectional view of a safety group with an expansion vessel * * according to a secondembodiment with twO backflow preventers. -4
* Fig.8 shows a detail of figure 7 with the connection between the expansion * vessel and the connection tube in an enlarged representation.
* Fig.9 shows a detail of figure 7 with the connection between the expansion * vessel and the connection tube in an enlarged representation.
Fig.10 is a perspective view of the tube connection piece of the second * embodiment without a bumper plate.
Fig.1 1 is a perspective view of the backflow preventer of Figure 7.
Figure 1 shows a safety group generally designated with numeral 10. A drinking water heater is secured against excess pressure with such safety group 10 The installation is * carried out in the pipe upstream of the drinking water heater. An expansion vessel 12 is connected to the safety group 10. The safety group 10 comprises a pressure reducer 14, a safety valve 16 and a backflow preventer 18 (see figure 2). The expansion vessel 12 is connected to the safety group 10 by a connection 20.
The way of operation and the set-up of safety-valves 16, pressure reducers 14 and backflow preventers are well known in the art and must, therefore, not be described in greater detail here. It is understood, that each kind of such components with a suitable operating effect can be used here. The components of the present embodiment * . correspond to the components traded by the applicant on the website www.svr.de with the product name "Sicherheitscenter 4807".
The safety group 10 has a housing 22 with an inlet 24 and a coaxial outlet.26. During operation the inlet 24 is connected to a drinking water heater which is not shown in the * * drawing. The pressure reducer 14 is mounted in form of a pressure reducer cartridge in a socket 28 behind the inlet laterally to the axis between inlet and outlet. On the side of * the housing 22 opposite to the socket 26 is provided a test socket 32 which is closed by * a plug 30: The pressure can be tested there with a manometer. The pressure can be * controlled to a desired value with the pressure reducer 1.4.
* . * *-* A backflow preventer 18 is provided in the housing 22 in alignment with the inlet 24 and behind the pressure reducer 14. The backflow preventer opens in the. direction of the outlet 26. It prevents that water from the downstream installation, i.e. the expansion vessel or the drinking water heater can flow back into the drinking water supply.
A safety valve 16 is provided in the housing 22 downstream of the backflow preventer and above the pressure reducer 14, on the left in figure 2: The safety valve.16 is positioned in a socket 34 of the housing. The safety valve 16 opens at excess pressure and releases water towards the outside through a drain connection until the pressure returns to a value below a set threshold.
On the side ofthe housing 22 opposite the safety valve 16, on the right in figure 2, and above the test socket 32 a further socket 38 is provided in the housing. The socket 38 serves to connect the expansion vessel 12. The housing socket 38 and the components connected thereto are shown again in greater detail in figure 4.
A tube connection piece 40 is inserted in.the housing socket 38. A perspective.view of the tube connection piece 40 is shown in Figure 5. The tube connection piece is provided with a ring 42. A radial projection 44 is integrated in the ring 4Z The tube connection piece 40 is inserted into the housing socket 38 in such a way that the projection 44 extends into a corresponding recess on the underside inside the housing socket 38. In such a way it is ensured during installation that the tube connection piece is inserted with the correct angular position.
The tube connection piece 40 is held in a pipe-shaped adapter fitting 46. The adapter fitting 46 is provided with an outer thread 48 which is used to be screwed into the inner thread in the housing socket 38. A sealing ring 50 is provided between the tube connection piece 40 and the adapter filling 46. A thickening 52 in the middle range of the adapter fitting 46 forms a stop.
On the side remote to the tube connection piece 40 the adapter filling 46 is also provided with an outer thread 54. A possibly bent outer connection pipe56 is inserted into the adapter fitting 46 up to a stop 58 on the inside of the adapter filling 46. The connection pipe 56 is clamped on the thread 54 by means of a cap nut 60 and a sealing clamping ring 62 by screwing the cap nut 60 on the thread 54.
The tube connection piece 40 is provided with a bumper plate 64. On the side of the housing -left in figure. 4 -the bumper plate is integrated in the middle range of the ring * * .. * * 42. . On the side of the housing socket 38 the tube connection piece 40 is provided with * *a tube connection 66. The tube connection 66 is integrated in the lower range of the ring 42 -right side in figure 4. The tube connection 66 is provided with saw tooth-shaped ribs 102 in known manner, such that a tube can be easily shifted thereon but is released against a resistance. Due to the projection 44 engaging inthe coesponding recess in the housing socket 38 it is ensured that the bumper plate 64 always horizontally extends * . into the housing and that the tube connection 66 projects into the lower range of the adapter fitting 46.
* A flexible tube 68 isattached on the tube.connection 66. The tube 68 extends through the entire connection pipe 56 as a tube-in-pipe-assembly. The expansion vessel 12 is provided at the.free end of the tube 68 and the connection pipe 56.. Figure 3 and figure 6 * show the' connection with the expansion vessel 12 in greater detail. The connection pipe * 56 in the present embodiment is bent. It is fixed to a socket 72 at the underside of the * expansion vessel 12 with a fixing element 70. For this purpose the fixing element 70 has *a thread 74 screwed onto an outer.thread of the socket 72. An annular projection 76 projecting towards the inside serves as a stop for the pipe end of the connection pipe 56.
A sealing 78 is provided at the upper side of the annular projection 76. A tube connect!on piece 80 is inserted into the sDcket 72 on the side of the expansion vessel over the sealing. The tube connection piece 80 is provided with a ring 82, resting on the * . . sealing 78 A tube connection 84 is integrated below the ring 82 which has a similar form as the tube connection 66 of the tube connection piece 40. On the side of the expansion * * * vessel the tube end of the tube68 is attached to the tube connection 84..
The upper end of the tube connection piece 80 ends in the lower end of an elongated passage 86. The passage 86 is integrated into the bottom 88 of the expansion vessel 12. A connection to the inside of the diaphragm 90 in the expansion vessel* 1.2 is.
established by the passage 86. . * * The assembly operates as follows: * . . * * Water from the drinking water supply which is not shown here flows with a pressure set * at the pressure reducer 14 through the bacow preventer 18. It opens and water flows * upwards in thedirection of the outlet 26. Water passing thebaclow preventer 18 in the right range will hit the bumper plate 64: It is.thereby deflected in the direction of arrow 92 * . (Fig.4) into the tube connection 66 and into the tube 68 (forward flow). The water flows through the tube 6S into the expansion vessel 12. From there it flows passing the side of.
the passage 86 through the socket 72 downwards as shown in Figure 3. This is represented by arrow 94. From socket 72 the water flows in the direction of arrow 96 on the outside of the tube 68 through the connection pipe 56 back into housing 22. Figure 4 illustrates with arrow 98 and 100 how the:return flow from.the connection pipe 56 flows back into the housing 22 and to the outlet 26.
With the safety group 10 it is possible that the expansion vessel 12 and the connection.
20. consisting of tube 68 and connection pipe 56 are flowed through at all times.
Thereby, stagnation of water and possible formation of germs is avoided. The expansion vessel 12 is directly connected to the safety group 10 in this assembly.
Figs. 7 to 11. show a second embodiment of the invention. The outside of the safety.
group of the second embodiment is identical to the outside of the safety group of the first embodiment shown in figure 1. Also, the components safety valve, expansion vessel, pressure reducer and connections are identical. Therefore, they must not described here again.
Inside the housing designated here with numeral 122 the arrangement of the assembly is slightly different. This can be well seen in figures 7 and 8. In this second embodiment a tube connection piece 140 without a bumper plate is used. This can be seen in figure 8 and is shown separately in figure 10.
Two aligned backfiow preventers 118 arid 164 are mounted inside a housing borehole 169 between the inlet 124 and outlet 126. The housing socket 138 with the tube connection piece 140 is provided in the range of the backflow preventers. The tube connection piece 140 is positioned inside the housing. socket 138 in such a way that its lower range forms an inlet 165 ending inthe tube 168. The tube 168 directs the water to the expansion vessel 112. The upper range of the tube connection piece 140 releases an outlet 167 connecting the outlet of the expansion vessel 112 to the housing bore. hole 169.
The Iower.backflow preventer 118 is formed by a backflow preventer cartridge inserted into the housing bore hole 169 up to a shoulder 171. The backflow preventer 1:18 is positionedupstream to the housing socket 138, whereby the entireflow must pass the.
backflow preventer 118. The drinking water supply is, therefore, protected against any backflow from the installation by this backflow preventer 118. The backflow preventer 118 is provided with a valve plate 173 with a valve spindle 175. The valve plate 173 is biased by the spring power of a spring 177 in the usual way. The spring 177 is.
supported by a spring abutment 179. The spring abutment is sleeve shaped and connected to a pipe-shaped coaxial guiding 181.
On one side the guiding 181 extends downwards in the direction of the valve seat of the * *backflow preventer 118. This section serves as.a guiding for the valve spindle 115. On the other side.the guiding 181 extents upwards towards the outlet 126. On the upper section of the guiding 181 a valve closing body 183 is guided in an axial direction. The valve closing body 183 has a plate-shaped annular projection 185 serving as a valve.
* . plate for a backflow preventer valve of the backflow preventer 164. An annular projection 187 integrated in the inside of the bore hole 169 serves as a valve seat of the backflow preventer 164. The pipe-shaped guiding 181 is closed at its outlet-side end with a plug 189. In a radial direction the plug 189 extends beyond the guiding 181. The projecting portion serves as a spring abutment for a spring 191. The spring 191 exerts a closing * power on the valve closing body 183. The guiding 181 is locked with the spring abutments 179 and 189 by webs 193. The spring-biased valve closing bodies 185 and 173 are moveable with respect to the guiding 181.
The axial position of the annular projection 187 is selected in such a way that it fits just below the outlet 167 of the connection to the expansion vessel. The flow is, thereby, always directed through the inlet 165 to the expansion vessel if the downstream backflow preventer is closed. Water flowing back from the expansion vessel passes the backflow preventer 164 and flows directly through the outlet 167 into the housing bore * hole 169. The expansion vessel 112, therefore, forms a bypass for small amounts of water.. If the flow increases considerably the downstream backflow preventer 164 will open. Then a portion will flow through the expansion vessel 112 and a portion will:flow through the backflow preventer 164. . . . The spring power of the spring 177 of the upstream backflow preventer 118 is smaller than the spring power of the spring 191 of the downstream backflow preventer 164.
Accordingly, small flows can pass the upstreambackflow preventer118but not.the downstream backflow preventer 164. They are redirected through the expansion vessel 112. . . .,,. . ** ...
The assembly using two backflow preventers enables that the entire flow is directed.
through the expansion vessel regardless how small it is. Compared to a bumper plate the risk of stagnation is even further reduces. . . . .
Claims (3)
- CLAIMS: Fitting assembly for drinking water heaters comprising (a) a housing (22; 122) with an inlet (24; 124) adapted to be connected to a drinking water supply and an outlet (26; 126) adapted to be connected to a drinking water heater; (b) a safety valve (16); and (c): an expansion vessel (12; 112).; characterized in that (d) the connection of the expansion vessel (12; 112) to the safety valve is provided by a pipe connection (56, 68; 168) where one flow direction is flowed through a passage (68; 168) which is provided within a. passage (56) where the flow direction is directed in the opposite direction.
- 2. Fitting assembly according to claim 1, characterized lii that the expansion vessel (12; 112) is directly connected to a socket (38; 138) of the housing by the pipe connection.
- 3. Fitting assembly according to any of the preceding claims, characterized in that a portion of the flow passing the safety group is directed through the expansion vessel (12; 112) and the pipe connection of the expansion vessel with the safety group.4 fling assembly according to claim 3, characterized in that a tube connection piece (40; 140) is provided in the housing which is provided with a bumper plate (64), the tube connection piece adapted to direct a portion of the flow intothe tube (68). . 5. . . Fitting assembly according to any of the preceding claims, characterized in that the pipe connection comprises a pipe (56) adapted to the installation conditions and a flexible tube (68) guided therein.6 tting assembly according to any of the preceding claims, characterized in thata pressure reducer (14) is provided at a housing socket upstream of the pipe connection.7. Fitting assembly according to any pf the preceding claims, characterized in that a backflow preventer (18; 118) is provided between the inlet and the outlet.(26; 126).8. Fitting assembly according to claim 7, characterized in that (a) a first backflow preventer (118) is provided upstream of the pipe connection (165, 167) of the expansion vessel (112) whereby the entire water flow * directed through the safety group is also directed through the first backflow preventer (118)1 * (b) a second backflow preventer (164) is provided downstream of the first backflow preventer (118), and * (c) the pipe connection of the expansion vessel (112) forms a bypass for the second backflow preventer (164) whereby the flow passing the first backflow preventer (118) flows either through the expansion vessel (112) or through the expansion vessel and the second backflow preventer (164).9. Fitting assembly according to claim 8, characterized in that the second backflow preventer (164) opens against the force of a spring which is larger than the force of the spring in the first backflow preventer (118).* 10. Fitting assembly according to claim 8 or 9, characterized in that the valve seat (187) of the second backflow preventer (164) is formed by the housing and a valve closing body (183) of the second backflow preventer additionally opens the pipe connection (167) of the expansion vessel (112) upon opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202013004858.1U DE202013004858U1 (en) | 2013-05-28 | 2013-05-28 | Safety group with expansion tank |
| DE102013011093.9A DE102013011093A1 (en) | 2013-05-28 | 2013-07-03 | Safety group with expansion tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201409501D0 GB201409501D0 (en) | 2014-07-09 |
| GB2517030A true GB2517030A (en) | 2015-02-11 |
Family
ID=51179198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1409501.2A Withdrawn GB2517030A (en) | 2013-05-28 | 2014-05-28 | Safety Group with Expansion vessel |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2517030A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020185084A1 (en) * | 2019-03-12 | 2020-09-17 | Flamco B.V. | Flexible fluid connector |
| RU2806966C2 (en) * | 2019-03-12 | 2023-11-08 | Фламко Б.В. | Flexible fluid connector |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1229291A2 (en) * | 2001-02-06 | 2002-08-07 | Vollmer Ingenieurbüro | Security group for protecting a closed sanitary water heater |
-
2014
- 2014-05-28 GB GB1409501.2A patent/GB2517030A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1229291A2 (en) * | 2001-02-06 | 2002-08-07 | Vollmer Ingenieurbüro | Security group for protecting a closed sanitary water heater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020185084A1 (en) * | 2019-03-12 | 2020-09-17 | Flamco B.V. | Flexible fluid connector |
| NL2022725B1 (en) * | 2019-03-12 | 2020-09-18 | Flamco Bv | Flexible fluid connector |
| RU2806966C2 (en) * | 2019-03-12 | 2023-11-08 | Фламко Б.В. | Flexible fluid connector |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201409501D0 (en) | 2014-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |