The invention relates to a fitting for connecting a radiator to the supply and return of a heater for a building.
For regulating flow it is known to provide a manually actuatable valve, in particular a thermostat valve, at the inlet of a radiator. If the valve is to be changed, the radiator and frequently also some of the piping must be drained.
The object of the invention is to improve a connector fitting of the type described above such that, given simpler and more compact structure, a valve, pump, and/or hose can be rapidly and simply connected and replaced.
This object is attained in accordance with the invention using the characterizing portions of claims 1 and 2.
A service adapter is created for the radiator, the adapter having a simple and compact structure and, with the least complexity, enabling connection of a pump, meter, in particular a sensor, and/or a hose for filling and draining. Neither connecting, removing, nor exchanging requires that the radiator be drained. The number of components is low, the installation complexity is reduced, and series production is possible.
Advantageous embodiments of the invention are described in the dependent claims. Three illustrated embodiments of the invention are shown in the drawings and described in greater detail in the following.
The connector fitting 1 has a housing (body) 2 made of metal or plastic that is essentially H-shaped with two short tubular parts 3 and 4 that are parallel to and spaced from each other and that are unitarily molded with a center connecting bridge 5. Between an inlet connector 3a and an outlet connector 3b the first tubular part 3 forms a water outlet passage 6, the inlet connector 3a being attachable to an outlet 7 of a radiator 8 and the outlet connector 3b being attachable to a return of a heater (heat source, in particular a boiler). On the side of the first tubular part 3 that faces away from the connecting bridge 5 is a blockable outlet 9 that leads to the outlet passage 6 and to which a valve can be connected, in particular a thermostat valve, a meter, a pump, or a hose.
Between its inlet connector 4a and its outlet connector 4b, the second tubular part 4 forms a water inlet passage 10 that is parallel to the water outlet 6, the inlet connector 4a being connectable to the supply of the heater and the outlet connector 4b being connectable to the inlet 11 of the radiator. The water inlet passage 10 is not throughgoing but rather forms a bypass in the form of two branches 12 and 13 that are parallel to one another and that extend at a right angle to the flow direction of the water inlet passage and that lead to a blocking device 14 that has a rotary disk valve 14a that can close both branches 12 and 13 can be closed. As an interface, the blocking device 14 forms a lateral service adapter to which a pump 15, meter, hose 16 having a hose coupling 19, or a bypass 17 can be releasably externally attached in particular via a bayonet joint. The supply for the heating thus flows to the radiator 8 through the passages 10, 12, and 13 via the attached part. Alternatively, the pump 15 and its housing 15a can also be non-releasably joined, in particular integrally, to the device housing 2 so that it is an integrated component of the fitting 1.
If one of the parts on the adapter or on the blocking device 14 is to be connected or changed, the valve body (in particular a ceramic disk) 14a must simply first be closed so that hot water cannot flow out during this connecting or changing process. If a pump 15 is connected, it can be used to regulate the temperature of the radiator 8; no valve, in particular no thermostat valve, is needed.
The bypass 17 (
Temperature sensor and/or flow sensors 20 and, 21 are provided in or at the water outlet passage 6 and/or in or at the water inlet passage 10.
If a pump is connected to the fitting and thus to the heat exchanger or to the radiator, this pump has the effect of a local pump, i.e. a pump is provided only for the one radiator or for one heat exchanger. The assignment of a local pump to a heat exchanger means that one pump, in particular one pump alone is provided per heat exchanger in order to ensure the fluid flow through the respective heat exchanger. A local pump can be arranged spatially directly with a heat exchanger, as is known from the arrangement of conventional thermostat valves, that is for instance in the supply, or even in the return. This is not absolutely necessary, however. A local pump can be arranged somewhere in a sub-network of a pipeline network in which only the at least one local pump and the associated heat exchanger are disposed. Thus e.g. all local pumps of all heat exchangers can also be provided centrally, e.g. near a heat generator, for instance in the cellar of a building.
Number | Date | Country | Kind |
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10 2006 024 083.9 | May 2006 | DE | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/EP07/03513 | 4/21/2007 | WO | 00 | 12/14/2008 |