Valve connection fitting, valve adapter element, insert element and method for pressing in an insert element

Abstract

Valve connection fitting (1), in particular T-shaped Valve connection set for an asymmetrically flowable or flow-in radiator with at least one valve receiving piece (2) for receiving a valve, in particular a control valve (9), venting or shut-off valve, and at least two connecting pieces (3, 4) for connecting to radiator plates (100, 101) for conducting the heating medium, as well as a device for channel separation between the two connecting pieces (3, 4), characterized by the fact that at least one insert element (7, 130) that is at least partially tubular and has at least one lateral opening (75) arranged inside the valve connection fitting (1) as an extension of the valve receiving piece (2) or the valve receiving piece (2) is extended into the interior of the valve connection fitting (1) and is provided with at least one lateral opening (28) and that the insert element (7, 130) or the extended valve receiving piece (2) is provided at its end with a tubular extension piece (24, 70, 121, 137) extending into its interior for receiving the front section (99) of the end of the control valve (9), venting or shut-off valve.

Description

[0001] The invention relates to a valve connection fitting, in particular a T-shaped valve connection assembly, for an asymmetrically flowed or flowed-through radiator, comprising at least one valve receiving piece for receiving a valve, in particular a control, venting or shut-off valve, and at least two connecting pieces for connecting to radiator panels for conducting the heating medium, as well as a device for separating the channels between the two connecting pieces, and a valve adapter element, which is particularly suitable for use with such a valve connection fitting. The invention further relates to a valve adapter element for use with such a valve connection fitting, an insert element for such a valve connection fitting and a method for pressing in an insert element.

[0002] The valve assembly serves to direct heating medium from a first radiator panel, particularly one facing a room, to at least a second radiator panel, particularly one located behind it, via at least one control, shut-off, or vent valve. Such a supply of heating medium first to one radiator and subsequently to the other(s) is referred to as asymmetrical flow to the radiator. The connecting pieces serve to transfer heating medium from one to the other heating panel(s).

[0003] Valve connection fittings for accommodating a control or vent valve are known as fittings that are usually T-shaped or equipped with a T-shaped connector. The control or vent valve is screwed or inserted into the valve receiver, and the two connecting pieces are joined to the heating elements at their ends. A channel separation device allows the supply of heating medium to the at least two heating elements to be regulated so that only a portion or no heating medium at all reaches one of the two elements, i.e., the heating medium supply to the two heating elements is different.

[0004] Various designs for channel separation in connection fittings are known in the prior art. For example, EP 1 249 285 B1 discloses a connection fitting formed by cold extrusion, in which two connection spigots are arranged on a central piece, the central piece containing a flow connection. The central piece has two offset channels to form the flow connection. A third connection spigot is arranged on the central piece, into which a channel leads.

[0005] DE 295 11 076 U1 discloses a connection fitting with an asymmetrically arranged partition that ensures that a provided vent valve is only in direct contact with a radiator panel. Furthermore, a separating element is provided on a manifold fitting, by which the flow section is separated from the return section. This separating element is a rotationally symmetrical blanking plug with a threaded section and a sealing section. The threaded section and the sealing section are connected to each other by a connecting section with a smaller diameter.

[0006] Furthermore, DE 196 14 330 C1 discloses a valve arrangement with a radially directed nozzle for receiving a valve insert and an inner wall with a z-shaped cross-section and a flow passage which is designed as a valve seat or into which a valve seat can be tightly inserted or plugged.

[0007] From EP 2 131 118 A1, various embodiments of connection fittings are also known, consisting of a T-piece manufactured on a lathe and provided with bores for desired flow directions, each having a welded-in and a pressed-in insert arranged at an angle to each other, wherein one insert is tubular and has a lateral opening into which the second insert is welded or pressed.

[0008] DE 10 2009 003 198 A1 is an earlier patent application relating to a method for manufacturing a connection part of a radiator and such a connection part having two connecting spigots, each having a connecting channel running inside it and arranged on a central piece of the connection part, and having at least one connecting spigot that is provided with a connecting channel running inside it which can be fitted with a control valve, a vent valve, a drain valve, a blanking plug or a supply or return line, wherein there is a flow connection from a connecting channel of one of the connecting spigots through the central piece to one of the connecting channels.Furthermore, an insert part is provided which is inserted into the center piece through one of the connecting channels and is connected there with its outer surface in a fluid-tight manner to an inner surface of at least one connecting channel and / or the center piece.

[0009] The present invention is based on the objective of further developing a valve connection fitting according to the preamble of claim 1 in such a way that a universal valve receptacle is possible in a standard-designed connection piece, in particular a T-shaped connection piece, i.e., any valves can be accommodated in one and the same connection piece, wherein an exact seating of a control, venting or shut-off valve inserted into the valve receptacle is ensured in this and the valve connection fitting, in particular a centering of the control or venting valve within the valve receptacle is carried out in a simple manner already when the valve is inserted into the valve connection fitting.

[0010] The problem is solved for a valve connection fitting according to the preamble of claim 1 in that at least one insert element, at least partially tubular and provided with at least one lateral opening, is arranged inside the valve connection fitting as an extension of the valve receiving piece, or the valve receiving piece is extended into the interior of the valve connection fitting and is provided with at least one lateral opening, and that the insert element or the extended valve receiving piece is provided at its end with a tubular extension extending into its interior for receiving the front section of the end of the control valve, venting valve or shut-off valve.For a valve adapter element according to the preamble of claim 11, the problem is solved in that it has at least one section for insertion into or mounting onto an end of a control valve, venting or shut-off valve and is provided with at least one section that can be placed in or on a receiving section and / or a tubular extension piece of an insert element of a valve connection fitting or the valve connection fitting.The problem is solved for an insert element according to claim 14 in that the insert element is at least partially tubular and provided with at least one lateral opening and can be arranged in the interior of a valve receiving piece of the valve connection fitting as an extension thereof and is provided at its end with an opening and / or with a tubular extension piece extending into its interior for receiving the front section of an end of a control valve, venting valve or shut-off valve inserted or insertable into the valve receiving piece, wherein the insert element is made of silicone and is provided with at least one molded sealing and / or flow channel section for arrangement in at least one connecting piece of the valve connection fitting.The problem is further solved by a method for pressing in a silicone insert element as an extension of a socket-like valve receiver of a T-shaped valve connection fitting, wherein the insert element is pressed into the valve receiver in a folded state under a preload, relaxes inside the valve connection fitting and rests against the respective inner surfaces of the valve connection fitting. Further developments of the invention are defined in the dependent claims.

[0011] This creates a valve connection fitting in which either the insert element or the extended valve holder has a lateral opening facing one of the connecting pieces. The insert element or the extended valve holder, projecting into the interior of the valve connection fitting, enables channel separation, as the two connecting pieces can only communicate via the valve inserted into the insert element or valve holder. When the insert element is designed as an extension of the valve holder, the control, vent, or shut-off valve is screwed into this combination of valve holder and insert element. The lateral opening in the insert element allows heating medium to flow through it to heat a radiator panel.

[0012] A direct connection between the two connecting pieces is prevented by the insert element or extended valve holder that projects into the connecting channel between the two connecting pieces, particularly in combination with at least one sealing element. Advantageously, at least one sealing and / or flow channel element is arranged in at least one connecting piece and can be tightly connected to, or is connected to, the at least one lateral opening of the insert element or an extended section of the valve holder, or is formed integrally with the insert element. The at least one sealing and / or flow channel element thus ensures that the heating medium can only flow between the interior of the insert element or the extended valve holder, i.e., the interior of the corresponding front part of the control, vent, or shut-off valve, and the one connecting piece of the valve fitting.The sealing and / or flow channel element can be made of metal and / or plastic, in particular silicone, rubber, or ceramic. For example, the sealing and / or flow channel element can have a metal section that engages with a circumferential edge in the side wall of the connector and / or in the transition area between the connector and the valve receiver. A plastic seal is advantageously attached to the metal part for sealing purposes. Furthermore, a type of rubber plug can also be provided, which is secured, in particular, by a locking element within the connector. For this purpose, at least one locking element, in particular a locking washer, especially a domed locking washer, can be provided to secure the sealing and / or flow channel element in the connector.The locking element bears radially against the inside of the connector, thereby securing the sealing and / or flow channel element against axial displacement. This ensures that even under higher pressure, the position of the sealing and / or flow channel element remains correct with respect to the lateral opening in the insert element or extended valve holder.

[0013] The end-facing extension or opening projecting into the interior of the insert element or the extended valve receiver serves as a bridge and / or sealing element for the valve within the valve receiver. It can be integral with the insert element or the valve receiver, in particular by being molded, bent, or drawn out at the end. Alternatively, the tubular extension and the insert element, or the extension and the valve receiver, or the insert element can be formed as multi-part components joined together, in particular by welding, pressing, soldering, or bonding the extension into the insert element or the extended valve receiver. Thus, the extension and the insert element or valve receiver can be formed as a single piece or as multiple parts. The extension serves to center and seal, and to easily position, the control valve or vent valve within the valve receiver.

[0014] The tubular connector and the insert element can be made of different materials, especially metal and / or plastic. Of course, they can also be made of the same materials, particularly in the case of a one-piece design.

[0015] The tubular extension piece can also be arranged in a base section of the valve receiver, with the base section itself being inserted into the end of the valve receiver. Advantageously, the tubular extension piece is tightly joined to the base section and / or the tubular insert element, either internally and / or externally. This tight fit eliminates the need for additional sealing elements in this area.

[0016] The end face of the insert element or valve receiver adjacent to the fitting is advantageously curved. This allows for a resistance-free flow of the heating medium past these curved surfaces, unlike the use of sharp edges or radii. This reduces noise and also prevents pressure losses.

[0017] The insert element and valve receiver are advantageously tightly joined, and / or the extension piece and insert element are tightly joined, or the extension piece and valve receiver element are tightly joined, and / or the base and valve receiver are tightly joined, and / or the base and extension piece are tightly joined. As mentioned, the insert element can be multi-part, particularly tubular with a base, and can be tightly joined internally and / or externally. The base can be made of a metal, a non-metal, or another material and can be formed with or without an extension piece. The base can also be pressed into the tubular part. A gripping or interlocking connection between the base and insert element and / or tubular extension piece is also possible. In particular, these elements can be welded together.Soldering or other joining methods are also possible, particularly when using an additional sealing element. Suitable sealing elements include internal and external seals, as well as metallic gaskets. Furthermore, silicone or plastic seals, especially high-temperature-resistant plastics, can be used to prevent damage caused by heat generated during manufacturing and subsequent use.

[0018] It is advantageous to provide at least one support element for end-mounting the insert element in the valve connection fitting, in particular end support feet. This allows the insert element or the extended valve receiver to be supported against the adjacent inner surface of the valve connection fitting wall, thus ensuring stable positioning of the insert element or extended valve receiver within the valve connection fitting. Specifically, only individual support feet, and not a continuous support ring, are provided here to allow the heating medium to flow around them and enter the valve. Alternatively, a support ring with a lateral opening for the passage of heating medium can also be provided to enable a connection to the control valve.

[0019] The connecting piece can be tubular and include a seal. Furthermore, an external seal is possible, as is a seal to the end face or bottom surface of the insert element or extended valve mounting piece.

[0020] The seals provided at the various points in the valve connection fitting can, especially in the case of metal fittings, be press-fitted into the valve connection fitting.

[0021] The insert element can be designed as a turned part, drawn part, plastic part, extrusion part, or, in particular, as a sintered part. After joining, in particular by welding, the valve receiver to the rest of the valve fitting, the insert element can be pressed into the valve fitting through the valve receiver. A tight seal is achieved, in particular, by providing a suitable sealing geometry. The insert element can be made of plastic and / or metal or other solid materials or material combinations or composites. It can itself include at least one support element for axial retention inside the valve fitting. Both the extended valve receiver and the insert element can have at least one opening at one end and / or a tubular extension extending into its interior.Sealing elements can be installed internally, held in place by a base element, externally, with a metal edge, or as a ring seal. This allows for one-sided sealing even under higher pressures.

[0022] The insert can also be made of plastic, particularly silicone. If the insert is made of silicone, it can be inserted into the interior of the valve fitting through the socket-like valve receptacle and unfold within it. Advantageously, the insert has at least one molded-on sealing and / or flow channel section. To insert or press the insert into the T-shaped valve fitting, the insert is pressed into the valve receptacle in a folded state under preload. This allows it to relax inside the valve fitting and conform to the respective inner surfaces of the valve fitting. For insertion into the valve receptacle, the molded-on sealing and / or flow channel section is folded. Due to the preload, this section then unfolds into the respective connecting piece of the valve fitting.A tool may be used to press the insert element into the interior of the valve connection fitting and, if necessary, to assist in its unfolding.

[0023] Furthermore, it is generally possible to screw a control valve into the valve connection fitting instead of an insert element to such an extent that a lateral opening of the control valve is covered by the flow channel of the sealing and / or flow channel element. In this case, the insert element as well as an extended section of the valve receiver can be omitted entirely.

[0024] Since various types of control, shut-off, and vent valves can be used in combination with a valve connection fitting, and these valves project to varying degrees and with different sealing geometries, types, or elements into the interior of the valve connection fitting, particularly into the insert element or the extended valve receptacle, a valve adapter element can be provided to compensate for the length differences and to accommodate the various sealing geometries, types, or elements. This adapter element can also serve as an end seal for the control, shut-off, or vent valve. Therefore, it has at least one section for insertion into or mounting onto the end of a control, vent, or shut-off valve and is provided with at least one section that can be mounted on or against a receptacle and / or a tubular extension of an insert element of the valve connection fitting.Advantageously, the valve adapter element consists at least partially of a readily deformable, particularly plastically deformable, material and is designed similarly to a bellows to enable particularly good length compensation and a particularly good seal. At the same time, however, the valve adapter element is designed to be so robust when attached to one end of the control, shut-off, or vent valve that it can withstand pressures of up to 1 bar while maintaining a secure and stable fit. The valve adapter element is therefore advantageously made of one or more of the following materials: metal, ceramic, plastic, silicone, or rubber. To ensure optimal sealing, especially when at least partially made of metal, an additional sealing element can be provided for sealing the valve adapter element within the valve connection fitting, in particular a sleeve- or tube-shaped element of the valve connection fitting.The at least one sealing element, e.g. in the form of an O-ring, can be provided in particular on the end face, inside or outside or radially on the valve adapter element, especially in an annular groove.

[0025] The valve adapter element can also be provided in place of the extension piece, projecting into the interior of the insert element or the extended section of the valve receiver. In this case, the extension piece can be omitted entirely, and only a corresponding bore or opening can be provided in the insert element or extended valve receiver into which the valve adapter element is inserted. This allows the control, shut-off, or vent valve to be centered and accommodated. The control, shut-off, or vent valve can also be sealed at its end face, particularly via an O-ring, either internally or externally, as well as radially against the valve adapter element and / or the insert element or extended valve receiver.The valve adapter element can also advantageously be provided in any valve connection fitting, whereby, depending on the internal design of the valve connection fitting, a control, shut-off, or venting valve can be centered in the valve receiver via the valve adapter element and an opening into which it is inserted or at least partially engages. Furthermore, the valve adapter element can be used in combination with any type of T-shaped connector or valve connection fitting with a channel separation device to enable asymmetrical flow to the panels of a radiator.

[0026] The valve adapter element can be loosely attached or even molded onto the insert element or extended valve receiver, or otherwise attached to it. It is also possible to support the valve adapter element within the housing of the valve connection fitting, for example, using support feet, etc.

[0027] To further explain the invention, exemplary embodiments are described below with reference to the drawings. These show: Fig. 1 a cross-sectional view of a first embodiment of a valve connection fitting according to the invention, Fig. 2 a cross-sectional view of a second embodiment of a valve connection fitting according to the invention, Fig. 3 a cross-sectional view of a third embodiment of a valve connection fitting according to the invention, Fig. 4 a cross-sectional view of a fourth embodiment of a valve connection fitting according to the invention, Fig. 5 - 10 different cross-sectional views of valve adapter elements according to the invention, inserted into valve connection fittings, each with individual views of the valve adapter elements pulled out as a detail view. Fig. 11 a cross-sectional view of a fifth embodiment of a valve connection fitting according to the invention, Fig. 12 a cross-sectional view of a sixth embodiment of a valve connection fitting according to the invention, and Fig. 13 a cross-sectional view of a seventh embodiment of a valve connection fitting according to the invention.

[0028] Fig. Figure 1 shows a cross-sectional view of a valve connection fitting 1 with a valve receiver 2 and two connecting pieces 3, 4, wherein the two connecting pieces 3, 4 are arranged along an axis and the valve receiver 2 is arranged approximately perpendicular to this axis. The two connecting pieces 3, 4 and a spherically shaped space 5 between these two connecting pieces are formed in one piece as a formed part. The valve receiver 2 is formed as a separate element and inserted into a corresponding opening 50 such that it is arranged approximately centrally between the two connecting pieces 3, 4. The opening 50 is covered by a weld seam, which is provided for connecting the socket-like valve receiver 2 to the remaining part of the valve receiver 2, containing the connecting pieces 3, 4. The connection of the valve receiver 2 and the connecting pieces, respectively, is formed by a weld.The assembly of connecting pieces 3, 4 and the space 5 is joined by tight joining, as shown here, in particular by welding or brazing. Fig. 1 indicates a weld seam 52.

[0029] The valve receiver 2 consists in particular of a metal, especially steel. It can therefore be formed by drawing, turning, sintering or extrusion.

[0030] The valve receiver 2 is designed as a socket and is provided with an internal thread 20 to allow a control valve or vent valve to be screwed into it. The valve receiver 2 also projects far into the space 5 and is designed as a sleeve-like extension. This extended section 21 is rounded at its end face 22 and provided with an opening 23. A projection 24, extending into the interior of the extended section 21, is inserted into this opening. For this purpose, the opening 23 is stepped, i.e., provided with different radii, and the projection 24 is provided with a corresponding projecting flange section 25. This flange rests on the inside 26 of the extended section 21. It can be pressed, soldered, or welded into the opening in the extended section 21, for example. The projection 24 is otherwise designed as a sleeve and is provided with an internal opening 27.

[0031] The front end of a control valve or vent valve can be attached to the adapter 24. The adapter allows for repeatable and precise positioning and sealing of the control valve or vent valve within the valve receptacle 2. Without such an adapter, a control valve or vent valve screwed into the valve receptacle 2 might protrude at an angle into the interior of the valve connection fitting, potentially resulting in suboptimal channel separation due to leakage flow past the control valve. This channel separation is intended for the separate, controlled flow of heating medium to individual heating elements within a radiator. This occurs during the [context missing]. Fig. The valve connection fitting shown in Figure 1 is characterized by the fact that, firstly, the extended section 21 projects very far into the space 5, leaving only a small gap between the end face 22 of the extended section 21 and the inner surface 11 of an outer wall 10 of the valve connection fitting. The direct path from the connecting piece 3 to the connecting piece 4 is blocked by the extended section 21, which projects into the space 5, in conjunction with a sealing and / or flow channel element 6. For this purpose, the sealing and / or flow channel element 6 has a plug-shaped part 600 with an internal flow channel 60. This channel is aligned with a lateral opening 28 of the extended section 21 of the valve receiving piece 2.In order to create a particularly good, safe and tight transition from the interior of the extended section 21 into the flow channel 60 of the sealing and / or flow channel element 6, this element has a narrow circumferential end collar 61 which lies in the lateral opening 28 of the extended section 21 of the valve receiving piece 2.

[0032] To further secure the sealing and / or flow channel element 6 in the connecting piece 3, a locking washer 62 is also provided, which is supported radially on the inner side 30 of the wall 31 of the connecting piece 3 and axially on the outer side against the plug-shaped part of the sealing and / or flow channel element 6. The locking washer 62 is made of metal, in particular, so that its outer edge can engage radially into the wall of the connecting piece 3 particularly well. The sealing and / or flow channel element 6, on the other hand, can be designed, for example, as a rubber plug, made of plastic, silicone, or optionally a combination of these materials, particularly also in combination with metal. Such an embodiment is found in Fig. 3 as well as Fig. 4. These will be discussed in more detail below.

[0033] By providing a rounded end face on the extended section 21 adjacent to the inserted extension piece 24, pressure losses in this area of ​​the flowing heating medium can be advantageously avoided. Furthermore, noise generation can also be prevented here, as resistance-free flow is possible, since in particular no sharp edges are provided that could otherwise lead to noise generation due to turbulence.

[0034] To position the extended section 21, which in the illustrated embodiment has a smaller wall thickness than the section of the valve receiver 2 not located in the space 5, particularly stably in the space, support feet can be provided as a connection between the end face, i.e., the end 22 of the extended section 21, and the correspondingly adjacent outer wall 10 or its inner surface 11. These are in Fig. 1, however, is not shown, as these are not required in this embodiment. Flow around such support feet is possible, while at the same time the extended section 21 of the valve receiver 2 is seated even more stably in the spherical space 5. Support feet are, for example, in the embodiment in Fig. 2 shown.

[0035] Fig. Figure 2 shows an alternative embodiment of the valve connection fitting 1. Here, the two connecting pieces 3, 4 are shorter than in the embodiment according to Figure 2. Fig. 1. Furthermore, the connecting piece 4 is not manufactured as a single unit with the gap and the connecting piece 3, but is attached as a separate part to the gap 5 or its outer wall 10. A tight joining method, for example by welding, soldering, etc., is provided to ensure sufficient tightness of the valve connection fitting under the pressures that occur.

[0036] The valve receiver 2 is also manufactured as a separate part and attached to the connecting piece 3, the space 5, and the connecting piece 4. Here, too, a tight fit is achieved, for example by welding, soldering, etc. In contrast to the embodiment according to Fig. However, no extended section 21 of the valve receiver 2 is provided here, but rather a correspondingly designed insert element 7. This is designed as a separate element, inserted and tightly joined in the area of ​​the opening 50, e.g. by welding, brazing, etc. In contrast to the design of the extended section 21 according to the Fig. 1 The insert element 7 has a one-piece molded extension piece 70. This is manufactured, for example, by forming the corresponding end piece of the insert element 7 inwards into its interior. Accordingly, rounded end sections 71 are also formed adjacent to the extension piece 70, so that a particularly quiet flow around this end face 72 of the insert element 7 is possible.

[0037] Extending from the wall 73 of the insert element 7 are support feet 74, which in turn bear against the inner side 11 of the outer wall 10 of the intermediate section 5. Furthermore, a lateral opening 75 is provided in the casing wall 73 of the insert element 7. To also form a flow channel towards the connecting piece 4, a sealing and / or flow channel element 6 is arranged adjacent to the lateral opening 75. This element, however, differs from the embodiment according to [reference missing]. Fig. 1 by providing two disk elements 63, 64, one of which is arranged within the space 5 and the other in the connecting piece 4. The disk element 64 arranged in the connecting piece 4 bears radially against the inner surface 40 of the outer wall 41 of the connecting piece 4. In the axial direction, it rests against a portion of the outer wall 10 of the space 5 and a projecting portion 42 of the connecting piece 4. The disk element 63, which has a trapezoidal cross-section, rests against the inner surface 11 of the outer wall 10 of the connecting piece and against the projecting portion 42 at its sloping surface 43. Furthermore, it bears against the outer surface 76 of the wall 73 of the insert element 7 as a radial contact surface.

[0038] The two disc elements 63, 64 can be made of different materials, in particular one for sealing made of a plastic, rubber, or silicone, and the other for support and fastening made of a metal or other stable material. Specifically, disc element 64 is made of a metal and disc element 63 of a sealing material such as plastic, silicone, or rubber. The openings 65, 66 provided in both disc elements create the desired flow channel from the interior of the insert element 7 into the connecting piece 4.

[0039] The in Fig. The further embodiment of the valve connection fitting 1 shown in Figure 3 is similar to the embodiment according to Figure 3. Fig. 1, however, in contrast to this, an insert element 7 is provided instead of the extended section 21 of the valve receiver 2. As in the embodiment according to Fig. 2. The insert element 7 is inserted as a loose element and subsequently tightly joined, i.e., in particular welded, soldered, or otherwise tightly joined. The insert element can be, as in the embodiment according to Fig. 2, consisting of a metal and / or plastic, in particular steel, and designed as a turned, drawn, sintered or extruded part. As in the embodiment according to Fig. 2 indicates the deployment element 7 according to Fig. 3 also support feet 74. Furthermore, it has a greater wall thickness than the one in Fig. 2 shown, so that good stability can already be achieved through this. The attachment piece 70 is, as in the embodiment according to Fig. 2, molded in one piece onto the insert element, for example bent inwards or crimped.

[0040] Instead of the ones in the Fig. 1 and Fig. 2 shown embodiments of sealing and / or flow channel elements 6 in the form of plug- or disc-shaped elements, in the embodiment according to Fig. 3 A metal part or element formed from a stable plastic, comprising a hollow conical section 67 and an approximately cylindrical section 68. The conical section 67 projects into the lateral opening 75 of the insert element 7, while the cylindrical section 68 bears radially against the inner surface 40 of the connector 4. The cylindrical section may, for example, have an edge at its end directed towards the wall 41 of the connector 4, which engages in the inner surface 40 of the wall 41. This allows the sealing and / or flow channel element 6 to bear particularly firmly against the inner surface 40 of the connector 4.

[0041] In principle, in addition to the sealing and / or flow channel element 6 shown, which is mostly made of metal and forms the cylindrical section 68 and the conical section 67, it is also a sealing and / or flow channel element 6 according to Fig. 3. It is possible to provide further sealing elements to create a particularly tight connection between connecting piece 4 and the interior of the insert element 7.

[0042] The lateral opening in the insert element 7 or the extended section 21 is arranged particularly where a lateral opening is provided in a control valve or vent valve, so that these two openings can overlap and thus a fluid connection can be established here without or essentially without leakage. For a tight connection, additional sealing elements can be provided here as well as in the area of ​​the respective attachment piece in the insert element or extended section. These are described in the Fig. However, numbers 1 to 4 were not shown.

[0043] In the embodiment of the valve connection fitting 1 according to Fig. 4 has a similar structure to that in Fig. Figure 1 shows an embodiment with an extended section 21 of the valve receiving piece 2 and an approximately plug-shaped sealing and / or flow channel element 6. In contrast to the embodiment according to Fig. However, 1 is not merely a retaining washer, in particular a domed retaining washer 62, but rather a T-shaped retaining element 69. This element, with its projecting part, is supported radially within the wall 31 of the connecting piece 3 on its inner surface 30. The plug-shaped part 600 of the sealing or flow channel element 6 is advantageously made of a plastic, silicone, or rubber material, whereas the T-shaped retaining element for stable support is made of a solid material, such as metal.

[0044] In the Fig. Figures 5 to 10 show different embodiments of valve adapter elements 8, each attached to or mounted on a front section 99 of a control valve 9. In these figures, the control valve 9 is inserted into a valve connection fitting in the corresponding valve receptacle 2, with the two connecting pieces 3, 4 being connected to two radiator plates 100, 101. The respective valve adapter elements 8 serve to allow control valves or vent valves of different lengths to be screwed into one and the same valve connection fitting without having to fear problems due to insufficient length and thus the desired channel separation within the valve connection fitting. Rather, a length adjustment is provided for the respective valve adapter element such that the different embodiments of control valves or vent valves can be accommodated.The same valve connection fitting can be used for each vent valve.

[0045] Accordingly Fig. The valve adapter element 8 is inserted at its end into the front section 99 of the control valve by means of a cylindrical section 80, whereas a further projecting section 81, which is also cylindrical, serves only to extend the control valve, i.e., it lies inside the valve connection fitting and, in particular, the valve receiver 2. With its conically tapered section 82, the valve adapter element 8 rests in a corresponding opening 51 in the space 5 of the valve connection fitting.

[0046] To seal the control valve against the valve adapter element, an O-ring 90 can, for example, be added to the outside of section 80 of the valve adapter element 8, as shown here. Fig. 5 can be taken from it.

[0047] To illustrate the shape of the valve adapter element 8, it is shown enlarged in detail from the Fig. 5 pulled out. This is also the case with the Fig. Figures 6 to 10 are shown in this way to illustrate the shapes of the valve adapter elements.

[0048] At Fig. 6 again consist of two cylindrical sections 80, 81, but no tapered section 82; instead, an annular groove 83 is provided on the end face of section 81. An O-ring 91 can be inserted into this annular groove 83, as shown in Fig. 6 is indicated.

[0049] In the embodiment according to Fig. 7 again provide the two cylindrical sections 80, 81 of the valve adapter element 8, wherein in this embodiment the cylindrical section 81 is provided with an annular groove 84 circumferentially on its outer surface. An O-ring 92 can again be arranged in this groove for sealing within the valve connection fitting, more precisely the valve receiver 2. This is Fig. 7 can also be seen.

[0050] In the embodiment according to Fig. In section 8, the valve adapter element is not inserted into the end of the control valve 9, but rather overlaps it, so that a cylindrical section 85 is formed with a diameter sufficient to allow the respective end of the control valve to easily overlap. A second cylindrical section 86 with a smaller diameter adjoins section 85. A third section 87 is tapered to fit snugly and securely in the opening 51 of the space 5 of the valve connection fitting. Due to the overlapping of the end of the control valve 9 with section 85 of the valve adapter element 8, an O-ring seal 93 is positioned on the outside of the valve section, i.e., on the inside of section 85 of the valve adapter element.

[0051] In the embodiment of the valve adapter element 8 according to Fig. 9 is completely cylindrical on the outside. On the inside, however, it has sections with different diameters, namely a section 88 with a larger diameter, which in turn overlaps the corresponding end of the control valve, and a section 89, which has a smaller diameter. On its end face, the valve adapter element 8 is again provided with an annular groove 83 to allow the insertion of an O-ring 91, similar to the embodiment according to Fig. 6.

[0052] At the in Fig. The embodiment of the valve adapter element 8 shown in 10 is again similar to the embodiment according to Fig. 8, the two cylindrical sections 85 and 86 are formed, with section 85 overlapping the end of the control valve. However, section 86 has an internal annular groove 94 for inserting an O-ring 95 to ensure a sufficient seal in the valve receiver 2 of the valve connection fitting 1.

[0053] Besides those in the Fig. In addition to the various embodiments of valve adapter elements shown in sections 5 to 10, numerous other forms, including hybrid forms, can be provided. Each of these is adapted at least on one side to the valve to be covered or engaged with, and on the other hand, ensures a sufficient seal in the valve connection fitting, particularly the valve receiver. In contrast to the designs shown in the Fig. The valve adapter element 8 can of course be used in combination with the valve connection fittings shown in sections 5 to 10. Fig. 1 to 4 or 11 to 13 can be provided. Furthermore, it is even possible to insert the valve adapter element into the insert element or the extended section of the valve receiver 2 instead of the extension piece 24, 70. This allows not only length compensation but also the desired centering of the control valve within the valve receiver.

[0054] Fig. Figure 11 shows a cross-sectional view of another embodiment of the valve connection fitting 1. In contrast to the embodiment in particular according to Fig. 1 is the extension piece that projects into the interior of the extended section 21, part of a base section 120 inserted therein. The base section 120 comprises the molded extension piece 121. This extension piece is tubular and has an opening 122, with a circumferential rim 123 formed on the extension piece that is drawn inwards towards the opening 122. The base section is arranged in a corresponding receiving groove 124 in the region of the end face 22 of the extended section 21. For engaging in the receiving groove, the base section 120 has a substantially flat section 125, which rests like a plate on a rim 126 bent towards the inner opening 23 and is located in the receiving groove 124. This receiving of the flat section 125 of the base section 120 in the receiving groove 124 creates a seal.In this multi-part embodiment of the valve receiver, a tight joining in the area of ​​receiving the base part 120 in the extended section 21 of the valve receiver 2 is also possible both on the inside of the extended section 21 and on its outside, i.e. also on the side of the valve receiver and base part facing the space 5.

[0055] In the embodiment of the valve connection fitting 1 according to Fig. In 12, instead of the base part 120 with the molded-in extension piece 121, only a disc-shaped base part 128 is arranged in the receiving groove 124. The disc-shaped base part 128 has a central opening 129. An extension piece 24, as described in Fig. As shown in Figure 1, the valve can be inserted. However, it is also possible not to insert any fitting here and simply screw a valve into the valve receiver 2. This valve then rests with its end face, in particular, on the surface of the disc-shaped base part 128.

[0056] Both in Fig. 11 as well as in Fig. 12 The respective base part is thus pressed into the receiving groove 124 to achieve a secure hold and a good seal.

[0057] In a multi-part version of the valve receiver 2, by providing the insert element 7, in addition to the ones described in the Fig. 2 and Fig. In the three illustrated design variants, each with an integrated attachment piece, a separation of this piece is also provided, i.e., a multi-part design also with regard to the attachment piece, similar to what is shown in the Fig. 1 and Fig. Figure 4 shows that the insert element 7 can advantageously be designed as a plastic part.

[0058] The adapter can also be manufactured as a plastic or injection-molded part. Both the insert element and the adapter can then be installed inside the valve fitting, specifically through the valve adapter 2, after the socket-like valve receptacle 2 has been welded or joined to the rest of the valve fitting assembly, i.e., the two connecting pieces 3 and 4, as well as the spherically shaped intermediate piece between them. By first joining the socket-like valve receptacle to the rest of the valve fitting assembly, thermal problems for the insert element are prevented from arising in the first place. Instead, the area around the opening 50, into which the socket-like valve receptacle 2 is inserted and welded or otherwise secured by applying heat, can be cooled before the insert element is installed in the valve fitting assembly 1.The connecting piece advantageously has its own support feet to ensure a secure hold within the valve connection fitting. The connecting piece can, for example, be designed as shown in Figure 13. Accordingly... Fig. However, part 13 is not a plastic insert element, but rather a silicone part. This will be discussed in more detail below. If a plastic insert element is used, it can be sealed in the area of ​​the spherical shape of the intermediate piece between the two connecting pieces 3 and 4. Furthermore, O-rings can be provided for sealing at various points, such as radially in the area of ​​the connection to the valve holder 2 and laterally in the direction of the connecting piece 3 and / or 4. The plastic insert element is pressed through the socket-like valve holder 2 and, when released, seals itself against the internal thread 20 of the socket-like valve holder 2.The diameter of the insert element is dimensioned accordingly to be able to move through the internal thread and to be able to support itself behind it when relaxing, on the inside of the outer wall of the socket-like valve receiver piece 2.

[0059] At the in Fig. In the embodiment shown in Figure 13, the insert element 130, in the form of a silicone part, is inserted into the T-shaped valve connection fitting after the socket-like valve receiver 2 and the remaining body of the valve connection fitting, consisting of the two connecting pieces 3, 4 and the spherically shaped intermediate piece, have been welded or joined. Insertion is achieved by pressing, whereby the silicone insert element 130, which is under preload during the pressing process, relaxes inside the valve connection fitting and conforms accordingly to the respective inner surfaces. A sealing and / or flow channel section 131 of the insert element 130, which is not yet fully expanded shortly after the pressing process, is located in Fig. 13 indicated by dashed lines. The indentation of the cup-shaped, molded lateral sealing and / or flow channel section 131 is still visible in this dashed variant. The in Fig. The sealing and / or flow channel section 131 shown in Figure 13 has a non-uniform wall thickness to ensure a particularly good and tight seal inside the connecting piece 3. Additionally, a spring element 132 is integrated into the wall material of the sealing and / or flow channel section 131 for a particularly good seal. The spring element, in particular a wire coated with silicone, is pre-tensioned such that it presses the silicone insert element in the area of ​​the sealing and / or flow channel section 131 against the inner surface 30 of the wall 31 of the connecting piece 3. This creates a particularly good hold and simultaneously a seal.

[0060] To further improve the hold, similar to the embodiment according to Fig. 1, a locking washer 133 is arranged on the end face of the sealing and / or flow channel section 131.

[0061] Another spring element 134 is arranged in the area of ​​the end 135 of the insert element 130, which is supported behind the sleeve-like valve receiver. This spring element is also wire-like and integrated into the insert element 130 with silicone overmold. It serves to press the silicone insert element 130 against a sealing edge 136, which is formed around the transition between the valve receiver 2 and the two connecting pieces 3, 4 on these three elements. Due to the radial preload of the spring element 134, the end 135 of the silicone insert element 130 is pressed particularly firmly against the edges of the walls 31, 41 of the two connecting pieces 3, 4. This ensures a secure hold as well as a good seal.

[0062] The insert element has an opening 138, particularly for the insertion of a connecting piece 137. As shown in Fig. As shown in Figure 13, the adapter is provided with a projecting, flange-like area 139, which fits into the opening 138. The wall thickness of the insert element 130 is greater in the area of ​​the opening 138 in order to fully engage this flange-like area 139 and thus securely and tightly accommodate the adapter 137. The adapter can, for example, be molded as an injection-molded part and inserted into the interior of the valve connection fitting before or after the insert element 130 is inserted, or, in particular, be directly injected into the silicone during the manufacturing of the insert element.

[0063] How Fig. The attachment piece 137, which can be further removed, has support feet 140. These are supported on the inside 11 of the outer wall 10 of the spherically shaped intermediate piece between the two connecting pieces 3, 4, in order to ensure a particularly secure hold of the attachment piece 137 inside the valve connection fitting.

[0064] Alternatively to the one in Fig. In the embodiment shown in section 13, a base area can also be provided that is overmolded with the silicone of the insert element 130 and is made of metal or another solid material. This can then directly encompass the support feet 140, thus also ensuring very good retention of the insert element inside the valve connection fitting.

[0065] The sealing and / or flow channel element section 131 can, in addition to the provision of the locking or clamping washer 133, also be supported on a shoulder, if provided, inside the connecting piece 3. In the Fig. In the embodiment shown in Figure 13, such a shoulder is not formed, so that the locking or clamping disc 133 is advantageously provided here to secure the position of the sealing and / or flow channel section 131.

[0066] As already mentioned, the entire insert element 130 is made of silicone and is oriented towards the in Fig.The pre-tensioned insert element 130, indicated by arrow 141 in Figure 13, is inserted into the socket-shaped valve receiver 2. This is done using a specially designed tool or lever. This tool allows the pre-tensioned insert element to be pushed into the interior of the valve connection fitting until the pre-tension causes it to expand inside the fitting. As it expands, the sealing and / or flow channel section 131, despite the offset from the connecting piece 3, also springs into the connecting piece 3 and rests against its inner surface. The end 135 of the insert element 130 also rests against the sealing edge(s) 136. The end of the insert element 130, which is provided with the opening 138 and, if applicable, the extension piece 137 and / or support feet 140, is positioned in the space 5 between the two connecting pieces 3 and 4.If support feet 140 are provided, these rest on the inner side 11 of the outer wall 10 of the spherically shaped intermediate piece 5. The correct positioning of the insert element inside the valve connection fitting can be further supported by using a lever tool.

[0067] The extension piece, which is made of metal or another material, particularly a solid material, can already be injection-molded into the insert element 130. Furthermore, it is possible to subsequently insert the extension piece into the corresponding opening 138 in the insert element 130. Especially when inserting the extension piece into the opening 138, it is advantageous for the opening 138 to be provided with a reinforcing element, such as, in particular, an additional spring element, which provides better retention of the extension piece in the opening 138.

[0068] In addition to the embodiments of valve connection fittings and valve adapter elements described above and shown in the figures, numerous other embodiments can be formed, in each of which, with regard to the valve connection fitting, at least one insert element, at least partially tubular and provided with at least one lateral opening, is arranged inside the valve connection fitting as an extension of the valve receiving piece, or the valve receiving piece is extended into the interior of the valve connection fitting and provided with at least one lateral opening, wherein the insert element or the extended section of the valve receiving piece is provided at its end with an opening and / or with a tubular extension piece or the valve adapter element extending into the interior of the insert element or valve receiving piece for receiving the front end of the control, shut-off or venting valve. Reference symbol list 1 Valve connection fitting 2 Valve mounting piece 3 Connecting piece 4 connecting piece 5 spaces 6 Sealing and / or flow channel element 7 Deployment element 8 Valve adapter element 9 Control valve 10 Exterior wall 11 Inside 20 internal threads 21 extended section 22 front end 23 Opening 24 attachment pieces 25 Flange section 26 Inside 27 inner opening 28 side openings 30 Inside 31 wall 40 Inside 41 wall 42 prominent section 43 sloping surface 50 opening 51 Opening 52 weld seam 60 Flow channel 61 collars 62 Locking washer 63 disc element 64 disc element 65 Opening 66 Opening 67 conical section 68 cylindrical section 69 T-shaped locking element 70 attachment piece 71 rounded final section 72 front end 73 wall 74 Support leg 75 side opening 76 Outside 80 cylindrical section 81 cylindrical section 82 tapered section 83 Ring groove 84 Ring groove 85 cylindrical section 86 cylindrical section 87 conical section Section 88 Section 89 90 O-ring 91 O-ring 92 O-ring 93 O-ring 94 Ring groove 95 O-ring 99 front section 100 radiator panels 101 Radiator panel 120 base section 121 Approach piece 122 Opening 123 Rand 124 recordings 125 flat section 126 Rand 128 Disc-shaped base part 129 Opening 130 insert element 131 Sealing and / or flow channel section 132 Spring element 133 Locking washer 134 Spring element 135 End 136 Sealing edge 137 Attachment piece 138 Opening 139 flange-like area 140 support foot 141 Arrow 600 plug-shaped part

Claims

[1] Valve connection fitting (1), in particular T-shaped Valve connection set for an asymmetrically flowable or flow-in radiator with at least one valve receiving piece (2) for receiving a valve, in particular a control valve (9), venting or shut-off valve, and at least two connecting pieces (3, 4) for connecting to radiator plates (100, 101) for conducting the heating medium, as well as a device for channel separation between the two connecting pieces (3, 4), characterized by , that at least one insert element (7, 130) that is at least partially tubular and has at least one lateral opening (75) arranged inside the valve connection fitting (1) as an extension of the valve receiving piece (2) or the valve receiving piece (2) is extended into the interior of the valve connection fitting (1) and is provided with at least one lateral opening (28) and that the insert element (7, 130) or the extended valve receiving piece (2) is provided at its end with a tubular extension piece (24, 70, 121, 137) extending into its interior for receiving the front section (99) of the end of the control valve (9), venting or shut-off valve. [2] Valve connection fitting (1) according to claim 1, characterized by , that the tubular attachment (24, 70) is integral with the insert element (7) or the valve receiving piece (2), in particular being molded, bent or drawn out at the end. [3] Valve connection fitting (1) according to claim 1, characterized by , that the tubular attachment (24, 70, 121, 137) and the insert element (7) or the valve receiving piece (2) or the insert element (130) are multi-part and joined, in particular the attachment (24, 121, 137) is welded, pressed, soldered or glued into it. [4] Valve connection fitting (1) according to one of the preceding claims, characterized by , that the end face (22, 72) of the insert element (7) or of the valve receiving piece (2) adjacent to the attachment piece (24, 70) is curved. [5] Valve connection fitting (1) according to one of claims 1, 3 or 4, characterized by , that in multi-part design the tubular attachment piece (24, 70, 137) is tightly joined with a bottom part (128) and / or the tubular insert element (7, 130) internally and / or externally, and / or that insert element (7, 130) and valve receiver (2) are tightly joined, and / or attachment piece (70, 137) and insert element (7, 130) are tightly joined, or attachment piece (24) and valve receiver (2) are tightly joined, and / or bottom part (120, 128) and valve receiver (2) are tightly joined, and / or bottom part (128) and attachment piece (24) are tightly joined. [6] Valve connection fitting (1) according to one of the preceding claims, characterized by , that at least one support element is provided for end-side support of the insert element (7) in the valve connection fitting (1), in particular end-side support feet (74). [7] Valve connection fitting (1) according to one of the preceding claims, characterized by , that at least one sealing and / or flow channel element (6) is arranged in at least one connecting piece (3, 4) and is tightly connectable or connected to the at least one lateral opening (28, 75) of the insert element (7) or of the extended section (21) of the valve receiving piece (2) or is formed in one piece with the insert element (130). [8] Valve connection fitting (1) according to any one of claims 1 to 7, characterized by , that at least one locking element (62, 64, 68, 69, 133), in particular a locking washer (62, 64, 133), in particular a convex locking washer, is provided for securing the sealing and / or flow channel element (6) in the connecting piece (3, 4). [9] Valve connection fitting (1) according to one of claims 7 or 8, characterized by , that the sealing and / or flow channel element (6) is made of metal and / or plastic, in particular silicone, rubber or ceramic and / or the tube-like attachment (24, 70, 121, 137) and the insert element (7, 130) are made of different materials, in particular metal and / or plastic, and / or the insert element (7, 130) is designed as a turned part, drawn part, extrusion part, in particular as a sintered part, or made of plastic, in particular silicone. [10] Valve connection fitting (1) according to one of the preceding claims, characterized by , that the insert element (130) is designed as a silicone part and can be inserted into the interior of the valve connection fitting (1) through the socket-like valve receiving piece (2) and unfolded therein or inserted and unfolded therein. [11] Valve adapter element (8) for use with a valve connection fitting (1) according to one of the preceding claims, characterized by , that it has at least one section (80, 85, 88) for insertion into or attachment onto an end of a control valve (9), venting or shut-off valve and is provided with at least one section (81, 82, 86, 87, 89) that can be placed on or against a receiving section and / or a tubular extension piece (24, 70, 121, 137) of an insert element (7, 130) of the valve connection fitting (1). [12] Valve adapter element (8) according to claim 11, characterized by , that at least one sealing element, in particular an O-ring (91, 92, 95), is provided for sealing the valve adapter element (8) in the valve connection fitting (1), in particular a sleeve- or tube-shaped element of the valve connection fitting (1), and is attached in particular to the end face, inside or outside or radially to the valve adapter element (8). [13] Valve adapter element (8) according to one of claims 11 or 12, characterized by , that the valve adapter element (8) is designed to project into the interior of the insert element (7) or the extended section (21) of the valve receiving piece (2) instead of the attachment piece (24, 70, 121, 137) and is made in particular of one or more of the materials metal, ceramic, plastic, silicone, rubber. [14] Insert element (130) for a valve connection fitting (1) according to one of claims 1 to 11, wherein the insert element (130) is at least partially tubular and provided with at least one lateral opening (75) and can be arranged inside a valve receiving piece (2) of the valve connection fitting (1) as an extension thereof and is provided at its end with an opening and / or with a tubular extension piece (137) extending into its interior for receiving the front section (99) of an end of a control valve (9), venting or shut-off valve inserted or insertable into the valve receiving piece (2), wherein the insert element (130) is made of silicone and is provided with at least one molded sealing and / or flow channel section (131) for arrangement in at least one connecting piece (3, 4) of the valve connection fitting (1). [15] Method for pressing in a silicone insert element (130) as an extension of a socket-like valve receptacle (2) of a T-shaped valve connection fitting (1), wherein the insert element (130) is pressed into the valve receptacle (2) under a preload in a folded state, relaxes inside the valve connection fitting (1) and comes into contact with the respective inner surfaces of the valve connection fitting (1).

Images