Variable flow characteristic regulating valve

Abstract

The application provides a variable flow characteristic regulating valve, which comprises a valve body, a valve seat, a valve core, a balance seat, a sleeve assembly and a valve cover; the sleeve assembly is installed on the valve seat, the balance seat is installed on the sleeve assembly, the valve cover is installed on the valve body and sequentially compresses the valve seat, the sleeve assembly and the balance seat; the valve core is installed in a cylindrical cavity formed on the inside of the valve seat and the sleeve assembly, and the outer wall surface of the valve core is attached to the inner wall surface of the valve seat and the sleeve assembly; by adjusting the relative position of the valve core and the sleeve assembly, the flow channel of the fluid passing through the sleeve assembly is changed, and the flow resistance is changed to achieve the purpose of flow regulation. The application changes the arrangement type of the internal throttling element to achieve the purpose of changing the flow characteristic without replacing the whole valve or the internal throttling element, and meets the demand of adjusting the flow characteristic of the valve according to the need under different working conditions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valves, in particular to a variable flow characteristic regulating valve. BACKGROUND

[0002] The regulating valve changes the throttling effect of the fluid flowing through the fluid, thereby changing the flow resistance applied to the fluid flowing through the fluid (causing the fluid to produce a pressure drop), so as to achieve the regulating effect of the flow. In the process of realizing the pressure drop, the phenomenon of cavitation caused by the fluid being lower than the saturation pressure in the process of pressure drop should be avoided as much as possible, which causes abnormal vibration and noise problems, and causes damage to the internal throttling elements (such as valve core, valve seat, etc.) of the valve, affecting the overall service life of the valve. At present, for the regulating valve of high temperature and high pressure fluid, the labyrinth flow channel is usually used, and the flow channel is reasonably arranged to make the fluid gradually reduce the pressure in the labyrinth flow, so as to avoid cavitation.

[0003] The flow characteristic of the regulating valve refers to the change characteristic relationship between the relative stroke (the ratio of the actual stroke of the valve core to the rated stroke) and the relative flow (the ratio of the actual flow to the rated flow) of the valve, which reflects the flow change characteristic of the valve under a certain valve core action amount. The typical flow characteristics include linear, equal percentage, and fast opening types. Different flow regulating characteristics correspond to different regulating requirements, which generally need to be considered comprehensively from the aspects of control quality, working condition, load and change characteristic. Generally, the regulating characteristic type and corresponding relationship of the regulating valve are determined when it is shipped. When the regulating requirement changes, the internal throttling element of the regulating valve often needs to be replaced to change the flow characteristic, which is time-consuming and laborious and affects the daily use of the regulating valve. The flow characteristic of the common labyrinth regulating valve is usually determined by the internal throttling element before use, and cannot be adjusted after use.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and does not constitute any limitation on the present application. SUMMARY

[0005] In view of the above-mentioned shortcomings of the prior art, the present application discloses a variable flow characteristic regulating valve, which changes the arrangement type of the internal throttling element (labyrinth flow channel) to achieve the purpose of changing the flow characteristic without replacing the entire valve or the internal throttling element, thereby meeting the demand of adjusting the flow characteristic of the valve according to the need under different working conditions.

[0006] This invention provides a variable flow characteristic regulating valve, including a valve body, a valve seat, a valve core, a balance seat, a sleeve assembly, and a valve cover. The valve seat is installed in the valve body, the sleeve assembly is installed on the valve seat, the balance seat is installed on the sleeve assembly, and the valve cover is installed on the valve body, sequentially pressing the valve seat, sleeve assembly, and balance seat together. The valve core is installed in a cylindrical cavity formed inside the valve seat and the sleeve assembly, with the outer wall surface of the valve core fitting against the inner wall surface of the valve seat and the sleeve assembly. Fluid flows in from the inlet of the valve body, passes through the sleeve assembly, the valve core, and its cylindrical cavity, flows downward from the valve seat, and finally flows out from the outlet of the valve body. By adjusting the relative position of the valve core and the sleeve assembly, the flow path of the fluid through the sleeve assembly is changed, thereby altering the flow resistance and achieving the purpose of flow regulation.

[0007] In one embodiment of the present invention, the sleeve assembly includes a plurality of sleeve components with different cross-sectional radii. The plurality of sleeve components are distributed radially on the sleeve assembly and are interlocked to form the sleeve assembly. When the gaps between the plurality of sleeve components are connected, multiple flow channels are formed in the sleeve assembly.

[0008] In one embodiment of the present invention, multiple flow channels of the sleeve assembly are distributed in the direction of movement of the valve core.

[0009] In one embodiment of the present invention, the cross-sectional area of ​​the flow channel of the sleeve assembly gradually increases from the inlet side to the outlet side of the valve body.

[0010] In one embodiment of the invention, the flow channel of the sleeve assembly includes a vertical straight channel and a horizontal flow channel distributed in its radial direction, and a 90° bend is formed between the communicating vertical straight channel and the horizontal flow channel.

[0011] In one embodiment of the present invention, the effective length of the vertical straight channel is adjusted by moving the movable sleeve component, thereby changing the flow channel type of the sleeve assembly.

[0012] In one embodiment of the present invention, the flow channel type of the sleeve assembly includes a direct flow channel and a non-direct flow channel. In the direct flow channel, the flow channel axis formed by the gap between adjacent sleeve components in the radial direction of the sleeve assembly coincides; in the non-direct flow channel, the flow channel axis formed by the gap between adjacent sleeve components in the radial direction of the sleeve assembly does not coincide.

[0013] In one embodiment of the present invention, the flow channel type of the sleeve assembly further includes a fully DC flow channel and a partially DC flow channel. The fully DC flow channel is composed entirely of DC flow channels, and the partially DC flow channel is composed of DC flow channels and non-DC flow channels.

[0014] In one embodiment of the present invention, the multiple flow channels of the sleeve assembly in the valve core moving direction correspond to multiple sleeve components in the same group. By moving the movable sleeve component, the effective length of the vertical straight channel of the single sleeve component in the same group is adjusted, thereby changing the flow channel type of the multiple flow channels in the sleeve assembly.

[0015] In one embodiment of the present application, the single sleeve member corresponds to multiple flow channels in the sleeve assembly, and the multiple flow channels include different flow channel types.

[0016] The present application has the following advantages: by changing the assembly of the sleeve member in the labyrinth sleeve assembly, the distribution and the rate of change of the flow resistance of the internal flow channel in the vertical height are changed. When the valve core moves upward in the vertical direction (i.e., when the valve opening increases), the flow characteristics of the valve can be changed as a whole or in part without disassembling the valve to replace the parts. The required flow resistance of the regulating valve can be matched by the size of the flow channel cross-sectional area in different heights and the number of flow channels in the same vertical height, so as to meet the adjustment requirements between the flow characteristics and the valve position change.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated into the specification and forming a part thereof illustrate embodiments in accordance with the present application and, together with the description, serve to explain the principles of the application. It is to be expressly understood, however, that the drawings are only for the purpose of illustration and are as such to be taken as a part of the specification, in which like numerals designate corresponding parts throughout the several views. In the drawings:

[0019] Figure 1 Structure of the variable flow characteristic regulating valve of the present application;

[0020] Figure 2 Flow channel cross-sectional view of the variable flow characteristic regulating valve of the present application in the initial operating condition;

[0021] Figure 3 Flow channel cross-sectional view of the variable flow characteristic regulating valve of the present application in the initial operating condition; Figure 2 Enlarged view of the region b and the region c;

[0022] Figure 4 Flow channel cross-sectional view of the variable flow characteristic regulating valve of the present application in the initial operating condition; Figure 2 Enlarged view of the region a and the region b;

[0023] Figure 5 Flow channel cross-sectional view of the variable flow characteristic regulating valve of the present application in the initial operating condition;

[0024] Figure 6 Flow channel cross-sectional view of the variable flow characteristic regulating valve of the present application in the initial operating condition;

[0025] Figure 7 Flow channel cross-sectional view of the variable flow characteristic regulating valve of the present application in the initial operating condition.

[0026] In the figure: 1, valve body; 2, valve seat; 3, valve core; 4, balance seat; 5, sleeve assembly; 6, valve cover; 7, valve stem; 8, inlet; 9, outlet. DETAILED DESCRIPTION

[0027] The advantages and effects of the present application can be easily understood by those skilled in the art from the description of the specific embodiments. The present application can also be implemented or applied in other different embodiments, and the details in the description can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following examples and features in the examples can be combined with each other without conflict. It should also be understood that the terms used in the examples of the present application are for describing specific embodiments, not for limiting the protection scope of the present application.

[0028] Reference should be made to Figures 1 to 7 It should be understood that the structures, proportions, sizes, etc. shown in the drawings accompanying the present description are only used to understand and read the content disclosed by the present description for those skilled in the art, and are not used to limit the conditions under which the present application can be implemented, so they do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size without affecting the effects and purposes that can be achieved by the present application should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms used in the present description, such as position, quantity relationship, etc., are only for the purpose of clear description, not for limiting the scope of the present application, and the change or adjustment of the relative relationship without substantially changing the technical content is also considered as the implementation range of the present application.

[0029] Reference should be made to Figures 1 to 4 The present application provides a variable flow characteristic regulating valve, which comprises a valve body 1, a valve seat 2, a valve core 3, a balance seat 4, a sleeve assembly 5 and a valve cover 6; the valve seat 2 is installed in the valve body 1, the sleeve assembly 5 is installed on the valve seat 2, the balance seat 4 is installed on the sleeve assembly 5, and the valve cover 6 is installed on the valve body 1 and tightly presses the valve seat 2, the sleeve assembly 5 and the balance seat 4 in turn; the valve core 3 is installed in the cylindrical cavity formed inside the valve seat 2 and the sleeve assembly 5, and the outer wall surface of the valve core 3 is in close contact with the inner wall surface of the valve seat 2 and the sleeve assembly 5; wherein the fluid flows into the inlet 8 of the valve body 1, passes through the sleeve assembly 5, the valve core 3 and its cylindrical cavity, and then flows downward from the valve seat 2 and finally flows out from the outlet 9 of the valve body 1; by adjusting the relative position of the valve core 3 and the sleeve assembly 5, the flow channel of the fluid through the sleeve assembly 5 is changed, and the flow resistance is changed to achieve the purpose of flow regulation.

[0030] Furthermore, the sleeve assembly 5 includes multiple sleeve components with different cross-sectional radii. The multiple sleeve components are distributed radially on the sleeve assembly 5 and are interlocked to form the sleeve assembly 5. When the gaps between the multiple sleeve components are connected, multiple flow channels are formed in the sleeve assembly 5.

[0031] Specifically, in this embodiment of the invention, the regulating valve further includes a valve stem 7 connected to the valve core 3. The lower part of the valve stem 7 is connected to the upper part of the valve core 3, and the valve core 3 can move up and down within the space formed by the lower end face of the valve cover 6 and the upper end face of the valve seat 2 by moving up and down. (See attached...) Figure 1 As shown, depending on the different vertical heights in the regulating valve, the sleeve assembly 5 can be formed by inserting sleeve components with different cross-sectional radii, and named from the outer layer to the inner layer as sleeve component (1) to sleeve component (5), that is, a labyrinth flow channel is formed inside the sleeve assembly 5. Fluid enters from the inlet 8 ( ) of the valve body 1 Figure 1 The water flows in from the left end face, through the sleeve assembly 5, the valve core 3 and the cylindrical cavity, downwards from the valve seat 2 and finally out from the valve body 1 outlet 9. Figure 1 (Flowing out from the right end face). By moving the valve stem 7, the relative position of the valve core 3 and the variable flow characteristic labyrinth sleeve assembly 5 can be changed, thereby changing the type and number of labyrinth channels through which the fluid flows through the sleeve assembly 5, and changing the flow resistance to achieve the purpose of flow regulation.

[0032] Please see the appendix Figure 2 This is a schematic diagram of the flow channel formed by cutting along the vertical split plane under the initial working condition of the sleeve assembly 5. The line segments (1) to (5) marked at the top and bottom of the attached figure represent the sleeve components (1) to (5). It can also be divided into three regions along the bottom to the top of the valve, according to the different flow channel types formed, namely region a, region b and region c, to correspond to different flow channel types.

[0033] Please see Figure 3 This is a magnified view of the divided regions b and c, with the corresponding geometric dimensions defined as follows: l1 is the length of the vertical flow channel in the sleeve component (1). d1 is the height difference between the horizontal flow channel in the sleeve component (1) and the horizontal flow channel in the adjacent sleeve component (2) below. l2 is the relatively smaller value of the length of the vertical flow channel in the sleeve component (5) (the larger value is l1).

[0034] Please see Figure 4 This is a magnified view of regions a and b, and the corresponding geometric dimensions are defined as follows: l1 is the relatively large value of the vertical flow channel length in the sleeve component (1) (the smaller value is l2). d2 is the height difference between the horizontal flow channel in the sleeve component (1) and the horizontal flow channel in the adjacent sleeve component (2) below.

[0035] For more specific details, please refer toFigure 1 According to the different vertical heights, three regions (region a, region b and region c) of the sleeve assembly 5 correspond to different flow passage patterns respectively. The working process of adjusting the variable flow characteristics of the regulating valve is as follows: in the initial working condition, by adjusting the number of flow passage groups of the sleeve assembly 5 in the circumferential direction thereof, the flow of the regulating valve changes linearly with the change of the position of the valve core 3. In the regions a, b and c, each group of flow passages formed by the sleeve assembly 5 at different vertical heights contains a corresponding number of bent flow passages and straight flow passages connecting the bent flow passages. When it is required to change the flow regulating characteristics of the regulating valve, the sleeve component (2) and the sleeve component (4) in the sleeve assembly 5 are moved downward by a corresponding distance, and by setting reasonable moving distance values, new flow passage patterns can be formed in the sleeve assembly 5.

[0036] Please refer to Figures 1 to 2 In an embodiment, the flow passages of the sleeve assembly 5 are distributed in the moving direction of the valve core 3. In this way, the number of flow passages connecting the inlet 8 and the outlet 9 of the regulating valve in the sleeve assembly 5 is selected by controlling the feed amount of the valve core 3 through the valve stem 7.

[0037] The cross-sectional area of the flow passages of the sleeve assembly 5 gradually increases from the inlet 8 side to the outlet 9 side of the valve body 1 (not shown in the drawings). In the embodiment of the present application, in the labyrinth flow passages of the sleeve assembly 5, the pressure of the fluid gradually and continuously decreases during the flow process, thereby effectively inhibiting the formation of cavitation, reducing the noise and vibration during the operation of the valve, and prolonging the service life of the key components.

[0038] Please refer to Figures 2 to 4 In an embodiment, the flow passages of the sleeve assembly 5 include vertical flow passages and horizontal flow passages distributed in the radial direction thereof, and 90° bends are formed between the connected vertical flow passages and horizontal flow passages. By moving the sleeve components to adjust the effective length of the vertical flow passages, the flow passage pattern of the sleeve assembly 5 is changed. Specifically, in the regions a, b and c, each group of flow passages formed by the sleeve assembly 5 at different vertical heights contains eight 90° bent flow passages and straight flow passages connecting the bends. When it is required to change the flow regulating characteristics, the sleeve component (2) and the sleeve component (4) in the sleeve assembly 5 are moved downward by a distance of l=l2, and by setting reasonable values of l1, l2, d1 and d2, new flow passage patterns can be formed in the sleeve assembly 5 correspondingly.

[0039] Please refer to Figures 2 to 7 In an embodiment, the flow passage pattern of the sleeve assembly 5 includes straight flow passage patterns and non-straight flow passage patterns. In the straight flow passage patterns, the flow passage axes formed by the gaps between the adjacent sleeve components in the radial direction of the sleeve assembly 5 coincide; in the non-straight flow passage patterns, the flow passage axes formed by the gaps between the adjacent sleeve components in the radial direction of the sleeve assembly 5 do not coincide.

[0040] Furthermore, the flow channel type of the sleeve assembly 5 also includes a fully DC type flow channel and a partially DC type flow channel. The fully DC type flow channel is composed entirely of DC type flow channels, while the partially DC type flow channel is composed of DC type flow channels and non-DC type flow channels.

[0041] Specifically, in the embodiments of the present invention, as shown in the appendix Figure 5 As shown, a typical arrangement of the sleeve assembly 5 in the regulating valve is: l1 = 2l2, d1 = d2 = l2; when the sleeve component (2) and sleeve component (4) in the sleeve assembly 5 move downward by a distance of l2, the resulting new flow channel profile is shown in the figure. Figure 5 As shown, region a does not contain any 90° bends in the flow path; it consists entirely of direct-flow channels. The flow resistance in this region is lower than in the initial operating condition. When valve core 3 moves vertically upwards or downwards within region a, the change in flow resistance resulting from the same distance of movement is smaller than in the initial operating condition.

[0042] Similarly, region b contains four 90° bends in the flow path, while the rest are direct-flow paths. Compared to region a, the flow resistance in region b is greater (but still less than the corresponding position under the initial operating condition). When valve core 3 moves vertically upward or downward within region b, the change in flow resistance resulting from the same distance movement is smaller than under the initial operating condition (but greater than the change in flow resistance in region a at this time).

[0043] Region c contains eight 90° bends in the flow path. Compared to regions a and b, the flow resistance in region c is relatively greater (but still less than the flow resistance in region c under the initial operating conditions). When valve core 3 moves vertically upward or downward in region c, the change in flow resistance caused by moving the same distance is smaller than under the initial operating conditions (but greater than the change in flow resistance in regions a and b at this time).

[0044] Please see Figures 5 to 7 In one embodiment, the multiple flow channels of the sleeve assembly 5 in the moving direction of the valve core 3 correspond to multiple sleeve components in the same group. By moving a single sleeve component in the same group, the effective length of the vertical straight channel is adjusted, and the flow channel type of the multiple flow channels in the sleeve assembly 5 is changed synchronously.

[0045] Furthermore, the individual sleeve components correspond to multiple flow channels in the sleeve assembly 5, each with a different flow channel type. By moving the movable sleeve components (e.g., sleeve components (2) and (4) in the attached figures) upward or downward, the flow channel type of the corresponding flow channel in the sleeve assembly 5 is changed. Thus, the effective length of the vertical straight channel can be adjusted by moving the individual sleeve components in the same group.

[0046] Furthermore, in embodiments of the present invention, as shown in the appendix Figure 6As shown, the flow resistance of sleeve assembly 5 in different vertical height regions (i.e. region a, region b and region c in the drawing) can be changed by changing the vertical moving length l (0 < l ≤ l2) of sleeve part (2) and sleeve part (4) in sleeve assembly 5, so as to change the length of vertical flow channel in the vertical direction, and then change the flow resistance of each group of flow channels in different vertical height regions, and finally change the flow resistance and flow characteristics of sleeve assembly 5. When sleeve part (2) and sleeve part (4) move downward by l (0 < l ≤ l2) in the vertical direction, the flow resistance in region a, region b and region c is all reduced compared with the default working condition.

[0047] More specifically, by setting the difference between the maximum length of the vertical flow channel corresponding to a single sleeve part and the minimum length of the vertical flow channel corresponding to the single sleeve part unchanged, that is, the multiple flow channels corresponding to a single sleeve part are all in the state of non-straight flow type flow channel, the length ratio of the vertical flow channel is 1:2, and the length of the vertical flow channel in the corresponding different flow channels changes in a linear relationship with the movement of the sleeve part, and when the straight flow type flow channel appears, the length of the vertical flow channel in the non-straight flow type flow channel is half of the maximum value. As shown in the drawing, Figure 7 As shown, there is a working condition that sleeve part (2) and sleeve part (4) in sleeve assembly 5 are moved downward by a distance of (l1+d1) (i.e. the flow channel formed by the adjacent sleeve parts is moved from the flow channel at the previous height position to the flow channel at the next height position), and since the maximum length of the vertical flow channel of the non-straight flow type flow channel in region a and region b exists, the flow channel type in region a and region b can remain unchanged, while the maximum length of the vertical flow channel of the non-straight flow type flow channel in region c does not exist, that is, the adjacent sleeve parts are not sufficient to move from the previous height position to the corresponding next height position, so that the flow channel in region c changes from the initial working condition of eight 90° bending type to straight type. That is, the flow resistance in region a and region b remains unchanged, and the flow resistance in region c decreases; thereby realizing the local change of the flow characteristics in a specific opening degree region of the valve (i.e. region c, corresponding to the small opening degree condition of the valve), while keeping the flow regulation characteristics unchanged in the remaining positions.

[0048] In summary, the variable flow characteristic regulation valve provided by the application changes the position of the sleeve part in the sleeve assembly in the vertical direction to form flow channel types in different regions, produce different flow resistances from the initial working condition, and then change the flow characteristics of the valve. When moved to a specific position, the flow resistance of the local region (lower layer labyrinth flow channel) can be changed only on the premise that the upper layer and middle layer labyrinth flow channel types remain unchanged (i.e. the flow resistance remains unchanged), so that the flow characteristics are changed only in a small opening degree (i.e. the lower layer labyrinth flow channel type change region).

[0049] The above embodiments are only illustrative of the principles of the present application and its efficacy, and are not intended to limit the present application. Any modification or change made by any person skilled in the art without departing from the spirit and scope of the present application shall be covered by the claims of the present application.

Claims

1. A variable flow characteristic regulator valve characterized by, The valve comprises a valve body (1), a valve seat (2), a valve core (3), a balance seat (4), a sleeve assembly (5) and a valve cover (6). The valve seat (2) is installed in the valve body (1), the sleeve assembly (5) is installed on the valve seat (2), the balance seat (4) is installed on the sleeve assembly (5), and the valve cover (6) is installed on the valve body (1) and sequentially compresses the valve seat (2), the sleeve assembly (5) and the balance seat (4). The valve core (3) is installed in the cylindrical cavity formed inside the valve seat (2) and the sleeve assembly (5), and the outer wall surface of the valve core (3) is attached to the inner wall surface of the valve seat (2) and the sleeve assembly (5). Fluid flows into the valve body (1) through the inlet (8), passes through the sleeve assembly (5), the valve core (3) and its cylindrical cavity, and flows out of the valve seat (2) and finally from the outlet (9) of the valve body (1). By adjusting the relative position of the valve core (3) and the sleeve assembly (5), the flow path of the fluid through the sleeve assembly (5) is changed, the flow resistance is changed, and the purpose of flow regulation is achieved. The sleeve assembly (5) comprises a plurality of sleeve components with different cross-sectional radii. The plurality of sleeve components are distributed in the radial direction of the sleeve assembly (5) and are inserted into each other to form the sleeve assembly (5). When the gaps between the plurality of sleeve components are connected, a plurality of flow channels of the sleeve assembly (5) are formed. The plurality of flow channels of the sleeve assembly (5) are distributed in the moving direction of the valve core (3). The flow channel cross-sectional area of the sleeve assembly (5) gradually increases from the inlet (8) side to the outlet (9) side of the valve body (1). The flow channel of the sleeve assembly (5) includes vertical flow channels and horizontal flow channels distributed in the radial direction thereof, and a 90° bend is formed between the connected vertical flow channels and horizontal flow channels.

2. The regulating valve according to claim 1, characterized in that The effective length of the vertical flow channel is adjusted by moving the sleeve component, and the flow channel pattern of the sleeve assembly (5) is changed.

3. The regulating valve according to claim 2, characterized in that The flow channel pattern of the sleeve assembly (5) includes straight flow channel and non-straight flow channel. In the straight flow channel, the flow channel axes formed by the gaps between the adjacent sleeve components in the radial direction of the sleeve assembly (5) coincide. In the non-straight flow channel, the flow channel axes formed by the gaps between the adjacent sleeve components in the radial direction of the sleeve assembly (5) do not coincide.

4. The regulating valve according to claim 3, characterized in that The flow channel pattern of the sleeve assembly (5) also includes full straight flow channel and partial straight flow channel. The full straight flow channel is composed of the straight flow channel. The partial straight flow channel is composed of the straight flow channel and the non-straight flow channel.

5. The regulating valve according to any one of claims 2-4, characterized in that, The plurality of flow channels of the sleeve assembly (5) in the moving direction of the valve core (3) correspond to the same group of plurality of sleeve components. The effective length of the vertical flow channel is adjusted by moving a single sleeve component in the same group, and the flow channel pattern of the plurality of flow channels in the sleeve assembly (5) is changed synchronously.

6. The regulating valve according to claim 5, characterized in that A single sleeve component corresponds to a plurality of flow channels in the sleeve assembly (5), which includes different flow channel patterns.

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