EP3660234A1 - Système d'eau potable et d'eau sanitaire - Google Patents

Système d'eau potable et d'eau sanitaire Download PDF

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Publication number
EP3660234A1
EP3660234A1 EP19210407.3A EP19210407A EP3660234A1 EP 3660234 A1 EP3660234 A1 EP 3660234A1 EP 19210407 A EP19210407 A EP 19210407A EP 3660234 A1 EP3660234 A1 EP 3660234A1
Authority
EP
European Patent Office
Prior art keywords
valve
drinking
circulation
water system
flow
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.)
Granted
Application number
EP19210407.3A
Other languages
German (de)
English (en)
Other versions
EP3660234B1 (fr
Inventor
Robin DIEKMANN
Thomas Spöler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gebr Kemper GmbH and Co KG
Original Assignee
Gebr Kemper GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gebr Kemper GmbH and Co KG filed Critical Gebr Kemper GmbH and Co KG
Publication of EP3660234A1 publication Critical patent/EP3660234A1/fr
Application granted granted Critical
Publication of EP3660234B1 publication Critical patent/EP3660234B1/fr
Active legal-status Critical Current
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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
    • E03B7/04—Domestic or like local 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

Definitions

  • the present invention relates to a drinking and industrial water system with the generic features of claim 1.
  • a drinking and industrial water system is from DE 20 2015 006 366 U1 known.
  • the drinking and process water system DE 20 2015 006 366 U1 has a riser, several storeys and a fall section, whereby several consumers are connected to each storey.
  • a supply line can feed fresh water into both the riser and the downcomer to supply the consumers. In the case of a tap operation, a consumer can therefore draw water from both directions.
  • a circulation line initiates a circulation flow in the storey lines, which flows from the riser line in the direction of the downward line.
  • a regulating valve is arranged in each of the floor strands at the end facing the downward strand, into which a thermostatic element controlled by the water temperature is installed as an actuator for a valve body, which cooperates with a valve seat for regulating the circulation flow.
  • the circulation is usually used to keep water at the desired water temperature close to the consumer. Because hot or cold water in the line would cool down or warm up, so that when the tap is drawn off at the consumer, the water with the desired temperature is not initially dispensed. Standing water is also hygienically questionable.
  • a bypass for bridging the valve seat in which a non-return closing element is mounted is recessed in the valve housing of the regulating valve.
  • the non-return closing element is biased in the direction of the circulation flow, so that the circulation flow is regulated solely by the thermostat element.
  • the non-return closing element opens against the direction of the circulation flow.
  • the thermostatic element is usually set in such a way that the circulation flow is low. Nevertheless, with the help of the non-return closing element, high consumption can also be supplied with sufficient water via the downtrend.
  • the present invention intends to provide a drinking and industrial water system which meets the technical requirements in an improved manner by providing as possible germ-free drinking and industrial water are provided in appropriate supply facilities with permanent exchange of water.
  • the present invention provides a drinking and industrial water system with the features of claim 1.
  • This drinking and industrial water system has a connection to the public water supply network, via which at least one supply line leading to at least one consumer is fed with fresh water.
  • the drinking and process water system also has a circulation line and a circulation pump arranged in the circulation line for the return of unused water.
  • the circulation line usually flows back into the supply line. In this way, the water in the drinking and process water system can be circulated if the consumer does not tap, and germ formation due to standing water can be avoided.
  • a water heater, a cooling unit or a heat exchanger is usually arranged in the circulation manifold or assigned to the mouth into the supply line. Cold water is usually cooled to temperatures below 25 ° C and hot water is heated to temperatures above 55 ° to avoid nucleation, which is favored in an intermediate temperature range.
  • the circulation flow is generally less than a supply flow triggered by a consumer tapping process.
  • the circulation line preferably has a nominal diameter which is smaller, for example DN 15 or smaller, than the nominal diameter of the supply line.
  • the supply line usually has a nominal diameter of DN 20 or larger.
  • a regulating valve is provided in the circulation line, which has an adjusting element controlled by the water temperature as an actuator for a valve body of the regulating valve. As a rule, an expansion element is provided.
  • a check valve is provided to bypass the valve seat. The check valve can be integrated in the regulating valve and can be arranged in a bypass formed in the housing of the regulating valve.
  • the regulating valve and the check valve can be designed as separate valves, in particular with a separate valve housing, and can be installed in parallel in the drinking and process water system.
  • the regulating valve and the check valve are followed by a flushing valve for draining water from the drinking and process water system.
  • the check valve is designed such that it opens in the direction of the circulation flow initiated by the circulation pump.
  • the present invention focuses in particular on a drinking and process water system with cold water. Most of the time, water is supplied from the The drinking and process water system is drained via the flush valve and replaced with fresh water from the public water supply network.
  • the solution according to the invention can be used to ensure that a sufficiently large volume flow flows through the circulation line during a flushing process, ie with the flushing valve open, that is to say that a sufficient amount of water can be exchanged. Under certain circumstances, it may also be desirable to drain water from the system in hot water circulation systems. As such, the present invention is not limited to a cold water system.
  • Germs contained in the drinking water or in the pipes multiply rapidly in a temperature range from approx. 25 ° to approx. 55 ° C.
  • the thermal control element of the regulating valve is therefore usually set so that water that is close to this temperature range or in this temperature range regulates a relatively high Kv value, so that the circulation flow is kept as high as possible at critical temperatures in order to exchange this water as quickly as possible .
  • the thermal control element generally regulates a relatively small Kv value for the circulation flow.
  • the regulating valve generally has a valve housing, which can be designed as a cast metal component or as a plastic part.
  • the valve body of the regulating valve usually interacts with a flow opening between the inlet and outlet channel of the valve housing in order to regulate the water flow rate through the regulating valve.
  • An adjusting device for presetting the valve body is usually also provided.
  • Such a thermally controlled valve is for example from the EP 1 372 054 A1 or the DE 100 56 715 A1 known.
  • the check valve opens in the direction of flow of a circulation flow initiated by the circulation pump.
  • the direction of flow of a rinsing flow and a flow in the event of a consumer tapping process coincides with the direction of flow of the circulation flow.
  • This direction of flow can therefore generally be referred to as the direction of flow of the drinking and process water system.
  • the check valve usually has a check body which rests on a sealing seat. A flushing flow can push this check body away from the sealing seat and thus bypass the valve seat of the regulating valve.
  • the check valve has a prestressing element that is prestressed against the circulation flow and / or is electronically controlled.
  • the check valve can preferably be formed by an RV cartridge, ie a check valve cartridge known per se.
  • the check body is preferably designed as a spring-biased valve cap.
  • the RV cartridge is sealed in a valve housing.
  • the RV cartridge is further preferably latched to the valve housing.
  • the housing of the RV cartridge which cooperates with the walls of the valve housing, usually has projecting latching lugs which engage in locking grooves in the valve housing when the RV cartridge is inserted into the valve housing. When locked, the RV cartridge is sealingly inserted into the valve housing and fixed there.
  • the RV cartridge can be installed in a valve housing of a separately designed check valve as well as in a common valve housing for regulating valve and check valve.
  • the check body can be electronically controlled.
  • at least one sensor, one actuator and one control unit are provided for this.
  • the sensor usually detects a characteristic variable of the valve combination of regulating valve and check valve, such as the pressure drop (pressure before the valve combination - pressure behind the valve combination) or the volume flow through the valve combination.
  • the control unit usually evaluates the signals from the sensor and controls the actuator accordingly.
  • the actuator usually acts directly or indirectly on the check body and usually adjusts it by means of an axial movement relative to the sealing seat. It is also conceivable that the non-return body is spring-loaded and electronically controlled.
  • the check body can be held in the closed position in addition to the spring force of the pretensioning element, for example by an actuator designed in the manner of a blocking pin, small plate or ring. It is possible to keep the check body in the closed position even when the water pressure is already sufficient to overcome the spring force of the biasing element.
  • the blocking pin, the blocking plate or the blocking ring is usually retracted orthogonally to the axis of the check body.
  • the check valve is designed such that it opens at a volume flow through the regulating valve of 7 l / min ⁇ 15%, very preferably ⁇ 10%, particularly preferably ⁇ 5%. "Opening” is usually to be understood as the moment at which the check body lifts off the sealing seat. As a rule, the check valve does not open to the maximum at this volume flow.
  • the check valve is set up in such a way that the check body has a maximum flow distance of 8 l / min ⁇ 15%, very preferably ⁇ 10%, particularly preferably ⁇ 5% from the sealing seat Position is held.
  • This position can also be understood as an open position in which the check valve is opened to the maximum.
  • the differential pressures which lead to the open position of the check body are preferably 50-700 hPa, very preferably 100-500 hPa, particularly preferably 250-300 hPa.
  • the circulation line has a plurality of circulation lines which are each assigned to at least one consumer and are connected to a common circulation manifold of the circulation line, in which the circulation pump is arranged and connected to the flushing valve.
  • a regulating valve and a check valve are provided at the ends of the circulation lines leading into the circulation line.
  • the circulation manifold can have a larger nominal diameter than the circulation lines.
  • the nominal diameter of the circulation line can correspond to that of the supply line, usually DN 20.
  • Hydraulic balancing of the individual strands is thus ensured as follows. Strands in which a relatively large amount of water is drawn generally have water of the desired temperature by constant exchange. The regulating valve assigned to this line then sets a relatively low KV value via the thermal control element. Strands in which, on the other hand, very little water is tapped, usually contain more stale water that deviates from the desired water temperature. The regulating valve assigned to this line then regulates a relatively high KV value for this line. This ensures that there is sufficient flow through the strands from which little water is drawn. At the same time, a hydraulic balancing is created in a manner known per se such that consumers are equally supplied with fresh water of the desired temperature regardless of the distance from the connection to the public water supply network.
  • the circulation pump is preferably arranged downstream of the flushing valve in the flow direction. Further preferably, a backflow preventer is provided in the circulation manifold, which is arranged downstream of the circulation pump in the flow direction.
  • the backflow preventer has the function of preventing fresh water from the connection to the public water supply network from flowing into the drinking and process water system in the opposite direction.
  • the circulation pump can usually be switched off during a rinsing process.
  • the electronically controlled check valves are connected in terms of control to a control unit with which the check valves are independently controllable.
  • the control unit is set up such that the check valves can be opened and closed again in a predetermined sequence.
  • the control unit is, as it were, connected to the flush valve in terms of control, so that the control unit initiates a flushing process by opening the flush valve, regulates it by controlling the check valves, and ends by closing the flush valve.
  • the control unit is preferably set up to carry out a flushing process in which a water change takes place for the entire drinking and process water system.
  • at least the volume between the connection to the public water supply network and the flushing valve is exchanged.
  • the control unit can be set up in such a way that such a water change is repeated periodically with a period of, for example, 72 hours.
  • the drinking and industrial water system has a flow sensor. This is usually located downstream of the regulating valve and the check valve in the direction of flow. If the drinking and process water system according to the invention has several circulation lines, the flow sensor is preferably provided in the circulation manifold. The flow sensor is usually assigned to the flushing valve and upstream of it in the flow direction. This allows the amount of fluid flushed during a rinsing process to be determined.
  • the flow sensor usually sends the measured data to the control unit.
  • the control unit evaluates the measured data, logs it and / or lets it flow into the control of a rinsing process.
  • the flow rate is usually calculated by integrating the continuously measured volume flow over time.
  • the control unit can, for example, be set up in such a way that it closes the flushing valve when, after opening the flushing valve, the calculated flow rate corresponds to the total volume of the drinking and process water system.
  • the drinking and process water system has a flow rate limiter.
  • the flow rate limiter is usually located downstream of the flushing valve in the direction of flow.
  • the flow limiter usually prevents excessive pressure drop in the drinking and process water system during a flushing process.
  • An outlet downstream of the flushing valve in the flow direction is preferably designed as a free outlet.
  • the free flow is usually characterized by the fact that water is a fall traveled in the earth's gravitational field, which either runs directly in the surrounding atmosphere or is atmospherically connected to it. In this way it can be safely avoided that contaminated or hygienically questionable water is sucked back into the water system in the event of a negative pressure in the water system. In particular, this fulfills the requirements of DIN EN 1717 for the separation of category 1 drinking water from category 5 water. Usually, the free drain drains into a sewer.
  • Overflow monitoring is also preferably assigned to the free flow. As a rule, this communicates with the control unit and / or the flow rate limiter, so that in the event of an impending overflow at the free outlet, the flow rate from the drinking water and process water system can be regulated or reduced. Additionally or alternatively, the overflow monitoring can issue a doublet signal, for example optically or acoustically.
  • the drinking and industrial water system has a water heater, a cooling unit or a heat exchanger.
  • a cooling unit or a heat exchanger for cooling the drinking water is usually provided at the mouth of the circulation line or the circulation manifold into the supply line.
  • the drinking water usually passes through the cooling unit or the heat exchanger for cooling before it gets back into the supply line.
  • a water heater or a heat exchanger for heating the drinking water is usually located downstream of the connection to the public water supply network in the direction of flow.
  • the drinking and process water system according to the present invention has a filtration system.
  • This is usually connected to the circulation manifold and upstream or downstream of the circulation pump in the flow direction.
  • the filtration system can be connected to a line section running between the backflow preventer and the heat exchanger (or the water heater or the cooling unit) or to a line section running between the flushing valve and the regulating valve (s).
  • the filtration system is an ultrafiltration system with a membrane, with which macromolecular substances and small particles can be separated from the drinking water.
  • the exclusion limits are usually specified in the form of the NMWC (English: Nominal Molecular Weight Cut-Off, also MWCO, Molecular Weight Cut Off, unit: Dalton). It is defined as the minimum molecular mass of globular molecules that are 90% retained by the membrane.
  • the ultrafiltration system is operated using the dead-end method, in which the membrane filters the entire volume flow through the circulation manifold. In this way, germs can be filtered out of the drinking water circuit.
  • the drinking water is usually pumped against the membrane by the circulation pump at low pressure, so that the compaction of retained substances is reduced to a minimum.
  • a filter cake (top layer or fouling) from the separated particles usually accumulates on the membrane.
  • the filter cake increases the filtration resistance and thus the pressure loss across the membrane. It usually has to be removed regularly by backwashing (pumping back already separated medium) and / or chemical cleaning and the filter element must thus be regenerated.
  • the Figure 1 shows a schematic view of an embodiment of a drinking and process water system of a building, not shown.
  • the building's drinking and process water system has a connection 2 to the public water supply network in order to supply the building with fresh water.
  • This fresh water is usually cold water that can be processed into warm drinking or service water within the building or used directly as cold service water for toilet flushing or a cold water tap, for example.
  • This in Figure 1 The drinking and process water system shown is designed as a cold water system.
  • a supply line 4 which is designed as a riser, is fed via the connection 2 to the public water supply network.
  • the riser 4 extends over three floors, with a supply branch 6 branching off the riser 4 on each floor.
  • the riser 4 and the supply lines 6 are designed for a nominal diameter of DN 20.
  • a consumer 8 is connected to the supply line 6 in each of the floors.
  • this connection is a T-piece connection 10.
  • the connection On the middle floor B, the connection is implemented via a flow divider 12.
  • the supply line 6C is looped through between the consumers 8C1, 8C2, 8C3, 8C4.
  • a circulation line 14 connects to the consumers on each floor.
  • a circulation manifold 16 In the circulation lines 14, water that is not consumed by the consumers 8 is passed into a circulation manifold 16 to which the circulation lines 14 are connected.
  • the circulation manifold 16 is provided on the same floor as the connection 2 to the public water supply network.
  • the circulation manifold 16 opens into the supply line 4, a heat exchanger 20 being arranged in front of the mouth 18.
  • a working medium on the primary side 22 of the heat exchanger 20 absorbs thermal energy from the drinking water which passes through the secondary side 24 of the heat exchanger 20, as a result of which the drinking water cools down.
  • Via circulation pump 26, which is arranged in the circulation manifold 16 the drinking water is kept in a constant circulation in this closed circuit.
  • the direction of the circulation flow is in the Figure 1 highlighted with an arrow Z.
  • a direction of flow against this circulation flow is prevented by a backflow preventer 28, which is arranged downstream in the circulation manifold 17 in the flow direction of the circulation flow initiated by the circulation pump 26.
  • An ultrafiltration system 29 is arranged downstream of the backflow preventer 28 in the direction of the circulation flow Z.
  • the ultrafiltration system 29 contains a membrane which is flowed through by the pump power of the circulation pump 26 and separates germs or other particles from the drinking water.
  • the ultrafiltration system 29 can alternatively be upstream of the flushing valve 16 in the direction of the circulation flow Z, so that the water drained from the system is also filtered. This means that the wastewater is less polluted.
  • a regulating valve 30 is arranged in each of these, into which an electronically controlled check valve is integrated.
  • the regulating valves 30 are each connected to a control unit 32 for control purposes. This is likewise connected in terms of control to a flushing valve 34, which is connected upstream to the circulation manifold 16 in the flow direction of the circulation pump 26.
  • a flushing valve 34 By opening the flush valve 34, water is through the flush valve 34 associated free drain 36 can be drained from the drinking and process water system. The water travels a free distance in the surrounding atmosphere before it runs off via a sewage pipe.
  • An overflow monitor 38 is assigned to the free outlet 36 and a flow sensor 40 is assigned to the flushing valve 34. Both the overflow monitor 38 and the flow sensor 40 communicate with the control unit 32, which uses the signals.
  • a flow rate limiter 42 is arranged on the free outlet 36.
  • the control unit 32 is also connected to the circulation pump 26 for control purposes, so that the pump can be switched off before or during a rinsing process.
  • the control unit 32 initiates such a flushing process by opening the flushing valve 34.
  • the regulating valves 30 contain a check valve which, however, is only opened by the control unit 32 when a minimum volume flow of at least approx. 7 l / min is reached. Sufficient water exchange can thus be ensured during a rinsing process.
  • the check valve or the control unit 32 is designed such that a circulation flow initiated by the circulation pump 26 does not open the check valve.
  • regulating valve 30 there is also a thermal valve with an expansion element, which regulates a flow opening through the regulating valve depending on the water temperature, the details of which also Figure 2 can be seen, which shows a regulating valve 43 with a spring-loaded check valve 44 integrated into a bypass.
  • the regulating valve 43 has a valve housing 48 with an inlet connection 50 and an outlet connection 52.
  • the direction of circulation is indicated by the arrow Z. This corresponds to the direction of flow during a rinsing process. The outer marking points in this direction, but cannot be seen in the sectional view.
  • the valve housing 48 forms a socket-shaped receptacle 54 for a valve insert identified by reference numeral 56.
  • the receptacle 54 is formed by an upper valve part, which is screwed with its external thread into an internal thread of the valve housing 48.
  • the valve insert 56 has a receptacle for an expansion element 58 of a thermostat controller 60.
  • the expansion element 58 acts on a plate 62 which is held biased against the force of a spring 64 in the direction of the expansion element 58.
  • a plunger 66 which carries an actuator 68, is coupled to the plate 62.
  • the valve housing 48 also forms a connection piece for the sealing screwing of an emptying plug 74. Furthermore, a shut-off valve 76 is provided, which can be operated manually in order to shut off the regulating valve 70 manually by placing the shut-off valve 76 against a straight seat 78.
  • the valve housing 48 forms a valve seat, identified by reference numeral 80, which leaves a flow opening 82 between it and the actuator 68. In the Figures 3 and 4 This flow opening 82 enables a circulation volume flow.
  • the valve housing 48 also forms a bypass 84, which is formed as a through hole between the tappet 66 and the connection 52.
  • an RV cartridge 86 with a spring-loaded valve cap 88 is provided in this bypass 84.
  • the RV cartridge 86 is sealingly inserted into the bypass 84.
  • the valve housing 48 forms a circumferential groove in which latching projections 90 of the RV cartridge 86 are engaged in order to lock the RV cartridge 86, which lies on the opposite side against an annular projection formed by the valve housing 48.
  • the RV cartridge 86 is sealed around the outside of the valve housing 48.
  • the RV cartridge 86 contains the check valve 44 in this exemplary embodiment. With a circulation flow Z according to FIG Fig. 3 the RV valve 44 closes the bypass 84 if a minimum volume system has not been reached due to the spring preload. With a flow in the opposite direction, the RV cartridge 86 closes the bypass 84 due to the spring preload and the water pressure in combination with the geometry of the valve cap 88.
  • the RV valve 44 opens and allows a flushing flow S through. This flushing flow S essentially bridges the flow opening 82.
  • the regulating valve after Figure 2 is self-sufficient, ie cannot be used electronically controlled.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Check Valves (AREA)
EP19210407.3A 2018-11-30 2019-11-20 Système d'eau potable et d'eau sanitaire Active EP3660234B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018005578.6U DE202018005578U1 (de) 2018-11-30 2018-11-30 Trink- und Brauchwassersystem

Publications (2)

Publication Number Publication Date
EP3660234A1 true EP3660234A1 (fr) 2020-06-03
EP3660234B1 EP3660234B1 (fr) 2021-03-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19210407.3A Active EP3660234B1 (fr) 2018-11-30 2019-11-20 Système d'eau potable et d'eau sanitaire

Country Status (3)

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EP (1) EP3660234B1 (fr)
DE (2) DE202018005578U1 (fr)
DK (1) DK3660234T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU102008B1 (de) * 2020-08-21 2022-02-21 Wilo Se Kompaktbaueinheit für eine Wasserzirkulation
DE202021101228U1 (de) 2021-03-11 2021-03-22 Gebr. Kemper Gmbh + Co. Kg Trinkwasser-Installation
DE202021103213U1 (de) 2021-06-15 2022-09-23 Gebr. Kemper Gmbh + Co. Kg Trink- und Brauchwassersystem

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29823960U1 (de) * 1998-07-27 2000-02-24 Neheim Goeke & Co Metall Ventil für Warmwasseranlagen
DE10056715A1 (de) 2000-11-15 2002-05-29 F W Oventrop Gmbh & Co Kg Ventil für Warmwasseranlagen
EP1372054A2 (fr) 2002-06-13 2003-12-17 Gebr. Kemper GmbH + Co. KG Vanne de régulation pour un système de circulation d'eau chaude
EP2365141A2 (fr) * 2010-03-09 2011-09-14 Gebr. Kemper GmbH + Co. KG Metallwerke Système d'eau sanitaire
DE202015006366U1 (de) 2015-09-07 2016-12-08 Gebr. Kemper Gmbh + Co. Kg Metallwerke Trink- und Brauchwasserversorgungseinrichtung eines Gebäudes und Regulierventil hierfür

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT228018B (de) * 1961-01-18 1963-06-25 Hoerbiger Ventilwerke Ag Ventilkombination
DE102006017807B4 (de) * 2006-04-13 2013-10-24 Gebr. Kemper Gmbh & Co. Kg Metallwerke Trinkwassersystem sowie Verfahren zum Betrieb eines solchen Systems
DE102011010840B4 (de) 2011-02-10 2019-08-14 Oventrop Gmbh & Co. Kg Trink- oder Brauchwassersystem

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29823960U1 (de) * 1998-07-27 2000-02-24 Neheim Goeke & Co Metall Ventil für Warmwasseranlagen
DE10056715A1 (de) 2000-11-15 2002-05-29 F W Oventrop Gmbh & Co Kg Ventil für Warmwasseranlagen
EP1372054A2 (fr) 2002-06-13 2003-12-17 Gebr. Kemper GmbH + Co. KG Vanne de régulation pour un système de circulation d'eau chaude
EP2365141A2 (fr) * 2010-03-09 2011-09-14 Gebr. Kemper GmbH + Co. KG Metallwerke Système d'eau sanitaire
DE202015006366U1 (de) 2015-09-07 2016-12-08 Gebr. Kemper Gmbh + Co. Kg Metallwerke Trink- und Brauchwasserversorgungseinrichtung eines Gebäudes und Regulierventil hierfür
EP3138965A1 (fr) * 2015-09-07 2017-03-08 Gebr. Kemper GmbH + Co. KG Metallwerke Dispositif d'alimentation d'eau potable et sanitaire d'un bâtiment et soupape de réglage associée

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Publication number Publication date
EP3660234B1 (fr) 2021-03-10
DK3660234T3 (da) 2021-06-07
DE202018005578U1 (de) 2020-03-04
DE102019217903A1 (de) 2020-06-04

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