DE102019126995A1 - Sanitary installation part and series for a sanitary installation part - Google Patents

Abstract

The invention relates to a sanitary installation part (1) with at least one flow-regulating functional unit (2) and a diffuser (4) arranged in the flow direction (3) after the flow-regulating functional unit (2), the diffuser (4) having a diffuser space (5) , wherein the diffuser space (5) is partially delimited by a baffle surface (6) which deflects water flowing into the diffuser space (5) in a radial direction towards a plurality of outlet openings (7), a drainage slope (8 ) is arranged, which allows water impinging on the impact surface (6) and draining therefrom in the position of use to run off in the direction of the outlet openings (7).

Description

The invention relates to a sanitary installation part, with at least one flow-determining functional unit and a diffuser arranged in the flow direction after the flow-determining functional unit, the diffuser having a diffuser space, the diffuser space being partially delimited by a baffle, the water flowing into the diffuser space in a lateral direction deflects, wherein the diffuser space has several outlet openings.

The invention further relates to a series with at least two variants of a sanitary installation part.

The invention is based on the object of providing a sanitary built-in part of the type mentioned at the beginning with improved performance properties.

The solution to this object is achieved according to the invention by a sanitary built-in part with the features according to claim 1 and / or according to claim 2 and / or by a series with the features of the subordinate claim directed to a series.

In particular, according to the invention, to solve the problem, a sanitary built-in part of the type mentioned at the outset is proposed, which is characterized in that the impact surface is followed by a drainage slope that allows water impinging on the impact surface and draining therefrom to drain in the use position in the direction of the outlet openings. This has the advantage that the sanitary built-in part can also be used at relatively low flow rates (such as, for example, a maximum or exactly 1 gallon per minute (gpm)) in order to form a beautifully shaped and / or ventilated water jet.

With such low flow rates, it is no longer possible to generate adequate ventilation of the water jet with sanitary built-in parts of the known type, so that a jet pattern of an outflowing water jet has an uneven effect. Compared to previously known sanitary built-in parts of the type mentioned at the outset, noise development, which is often perceived as annoying, can also be better prevented, since turbulence within the built-in part, in particular within the diffuser space and / or in the direction of flow after the outlet openings, is less than with previously known built-in parts.

In particular, according to the invention, to solve the problem, a sanitary built-in part of the type mentioned at the outset is proposed, which is characterized in that the outlet openings break through a circumferential side wall of the diffuser, that the outlet openings each have a width b, that two adjacent outlet openings are each at a distance a from one another are spaced apart, and that a ratio b / a is less than 0.41. It has proven to be particularly advantageous to keep the ratio b / a less than 0.41 for built-in parts with lower flow rates (low flow classes), since values above this resulted in a poorly ventilated and / or unsightly shaped water jet. This ratio can therefore ensure that the water jet is adequately ventilated, especially at lower flow rates, such as 1 gpm.

The two independent solutions described above can also be combined with one another to form an advantageous embodiment.

Advantageous refinements of the invention are described below which, alone or in combination with the features of other refinements, can optionally be combined with the features according to claim 1 and / or 2.

According to an advantageous development, it can be provided that the diffuser space has at least one inlet opening, with a water jet entering through the at least one inlet opening in the use position impinging on the impact surface and being broken up. This enables good ventilation of the water jet even with a low flow rate. In particular, several inlet openings can also be provided, which are preferably all aligned with the impact surface. In particular, the at least one inlet opening can be formed through the functional unit.

In order to be able to achieve a particularly good distribution of the water jet, the impact surface can be oriented vertically or almost vertically in relation to an angle of incidence of the water jet flowing in in the position of use.

In order to accelerate the drainage of the water that has hit the impact surface, it can be provided according to a further advantageous embodiment that the drainage slope is inclined at an angle downwards and / or from the inside outwards with respect to the impact surface. In particular, the angle can be at least 5 degrees, in particular at least 10 degrees, in particular at least 15 degrees, in particular at least 20 degrees, in particular at least 25 degrees, preferably about 30 degrees.

According to a further advantageous embodiment, the diffuser space can be designed in the shape of a ring. Alternatively or in addition to this, it can it can be provided that the outlet openings are at least partially designed as material recesses running outward, preferably material recesses running radially outward. In particular, the material recesses can each have a minimum length that is at least 2%, in particular at least 3%, in particular at least 4%, in particular at least 5%, in particular at least 6%, in particular at least 7%, in particular at least 8%, in particular at least 9%, in particular corresponds to at least 10% of a diameter of the diffuser space. The water jets emerging from the outlet openings can thus be rectified before they exit in order to be able to generate a homogeneous, ventilated jet pattern.

According to an advantageous embodiment, it can be provided that the diffuser space is formed between the impact surface and the functional unit determining the flow. As an alternative or in addition, provision can be made for a diffuser ring to be formed or arranged downstream of the outlet openings.

According to a further advantageous embodiment, it can be provided that the flow-determining functional unit has at least one flow limiter and / or at least one throttle. It is thus possible to introduce a predefinable amount into the diffuser. It can be particularly advantageous if the functional unit has at least one flow limiter, so that a required and / or desired flow rate can be provided within a working range independently of pressure. The flow conditions in the diffuser space can thus be better controlled.

According to a particularly advantageous embodiment, it can be provided that the sanitary built-in part has a housing into which the diffuser and / or the at least one flow-determining functional unit is / are at least partially inserted. The housing can preferably have a circumferential, in particular closed, wall which laterally delimits an in particular annular collecting chamber downstream of the outlet openings in the direction of flow. The housing can be designed, for example, as a diffuser ring which forms an outer and / or lateral delimitation of an annular chamber / collecting chamber.

In order to achieve a particularly good division of a water jet occurring on the impact surface, it can be provided according to an advantageous further development that at least one dividing element is arranged on and / or on the impact surface, in particular on the edge of the impact surface. In particular, several dividing elements, preferably lying on a circular path, can be arranged on the impact surface. As an alternative or in addition, the dividing elements can be arranged in the radial direction and / or in relation to a flow direction, for example the flow direction already mentioned, as a flow obstacle in front of an outlet opening.

In order to be able to better prevent turbulence within the diffuser space, according to an advantageous development, a collecting chamber can be formed between the outlet openings and an outer edge of the drainage slope inside the diffuser space. A height of the diffuser space in the area of the collecting chamber can preferably be higher than a height of the diffuser space in the area of the baffle. Alternatively or in addition, it can be provided according to an advantageous development that an outer edge of the slope, for example the aforementioned outer edge of the slope, is formed by a step. Thus, the draining water at this point falls from a tear-off edge, in particular a blunt tear-off edge, down the drainage slope, as a result of which it experiences an acceleration before it flows through the outlet openings.

To solve the above-mentioned object, a series for at least two variants of a sanitary built-in part is also proposed, in particular where at least one of the at least two variants corresponds to a sanitary built-in part as described and claimed here.

The series comprises at least one functional unit, at least one housing and at least two different types of diffusers. The housing can for example be designed as a diffuser ring. The series is characterized in that the at least two variants are different Types of diffusers have that the at least two types of diffusers have differently designed flow-determining outlet openings. In particular, a first type can have a smaller flow class than a second type. As already explained above, the first variant can be a flow class whose flow rate is a maximum of 1 gpm, in particular exactly 1 gpm, or less than 1 gpm. Correspondingly, the second variant has a higher flow class with a flow rate of more than 1 gpm.

In other words, a series is proposed for with at least two variants of a sanitary installation part, each variant having at least one functional unit, at least one housing and / or one diffuser ring, and at least one diffuser, characterized in that the at least two variants have different types of diffusers have that the at least two types of diffusers have differently designed flow-determining outlet openings, in particular wherein the first variant has a smaller flow class than the second variant.

Advantageous refinements of the invention are described below which, alone or in combination with the features of other refinements, can optionally be combined with the features of the subordinate claim directed to a series. In particular, the features of the sanitary built-in part described and / or claimed herein can also be used in order to form further configurations according to the invention.

According to an advantageous development, it can be provided that a ratio of a width b of an outlet opening to a distance a between two adjacent outlet openings is smaller in the first type of diffuser than in the second type. It is thus possible to use the series to provide sanitary built-in parts of different flow classes (and / or variants of flow classes), with only different types of diffusers having to be used to achieve this. Depending on the flow rate, the correct diffuser can thus be selected and inserted into the housing in order to form a sanitary installation part.

According to a particularly preferred embodiment of the series, it can be provided that the first variant is designed as a sanitary built-in part according to one of the preceding claims.

In order to be able to produce built-in sanitary parts with different flow classes, it can be provided that the ratio b / a of the first variant is less than 0.41 and / or that the ratio b / a of the second variant type is 0.41 or greater than 0 , 41 is.

In order to keep the manufacturing costs of the sanitary built-in parts that can be manufactured by means of the series as low as possible, it can be provided according to a further advantageous embodiment that the housing and / or a diffuser ring of the at least two variants is structurally identical. The housing can refer to the diffuser ring or it can be different components.

According to a further development, it can be provided that the second variant does not have a drainage slope on the diffuser. Thus, different flow properties can be achieved here than with the first variant.

The invention will now be described in more detail on the basis of several exemplary embodiments, but is not limited to these exemplary embodiments. Further exemplary embodiments result from the combination of the features of individual or multiple claims with one another and / or with individual or multiple features of the exemplary embodiments.

• 1 eine vorbekannte Ausgestaltungsvariante eines sanitäres Einbauteils (kann der zweiten Variante entsprechen), wobei nur ein Diffusor und nicht eine durchflussbestimmende Funktionseinheit dargestellt ist, wobei der Diffusor einen Diffusorraum aufweist, wobei der Diffusorraum teilweise durch eine Prallfläche begrenzt ist, die in den Diffusorraum einströmendes Wasser in eine seitliche Richtung ablenkt, wobei der Diffusorraum mehrere Austrittsöffnungen aufweist,
• 2 eine beispielhafte Ausgestaltungsvariante eines erfindungsgemäßen sanitären Einbauteils (kann der ersten Variante entsprechen), die im Gegensatz zum Einbauteil aus 1 eine an die Prallfläche direkt anschließende Ablaufschräge aufweist, die auf die Prallfläche auftreffendes und davon ablaufendes Wasser in Gebrauchsstellung in Richtung der Austrittsöffnungen ablaufen lässt, vorzugsweise wobei das Einbauteil als Strahlregler ausgestaltet ist,
• 3 eine Draufsicht auf den Diffusortyp der Variante des sanitären Einbauteils aus 1, wobei eine umlaufende Seitenwandung des Diffusors durch mehrere Austrittsöffnungen mit einer jeweiligen Breite (b) durchbrochen ist, wobei die Austritssöffnungen derart angeordnet sind, dass zwei benachbarte Austrittsöffnungen jeweils in einem Abstand (a) voneinander beabstandet angeordnet sind,
• 4 eine Draufsicht auf den Diffusortyp der Variante des sanitären Einbauteils aus 2, wobei die Austrittsöffnungen gegenüber dem Diffusortyp aus den 1 und 3 enger ausgestaltet sind, also eine geringere Breite (b) aufweisen,
• 5 eine Schnittdarstellung des sanitären Einbauteils aus 3, wobei dem Diffusor eine Funktionseinheit in Strömungsrichtung vorgelagert ist,
• 6 eine Schnittdarstellung des sanitären Einbauteils aus 4, wobei dem Diffusor ebenfalls eine Funktionseinheit in Strömungsrichtung vorgelagert ist, und wobei sich die Ausführungsform aus 6 gegenüber der aus 5 lediglich durch den Diffusortyp unterscheidet.

It shows:

• 1 a previously known design variant of a sanitary built-in part (can correspond to the second variant), with only a diffuser and not a flow-determining functional unit being shown, the diffuser having a diffuser space, the diffuser space being partially limited by a baffle, which flows into the diffuser space in deflects a lateral direction, wherein the diffuser space has several outlet openings,
• 2 an exemplary embodiment variant of a sanitary built-in part according to the invention (can correspond to the first variant), which in contrast to the built-in part from 1 has a drainage slope directly adjoining the impact surface, which allows water impinging on the impact surface and draining therefrom in the position of use to drain in the direction of the outlet openings, preferably with the built-in part being designed as a jet regulator,
• 3 a plan view of the diffuser type of the variant of the sanitary built-in part 1 , wherein a circumferential side wall of the diffuser is pierced by several outlet openings with a respective width (b), wherein the outlet openings are arranged in such a way that two adjacent outlet openings are each arranged at a distance (a) from one another,
• 4th a plan view of the diffuser type of the variant of the sanitary built-in part 2 , the outlet openings compared to the diffuser type from the 1 and 3 are designed narrower, i.e. have a smaller width (b),
• 5 a sectional view of the sanitary fixture 3 , with a functional unit in front of the diffuser in the direction of flow,
• 6th a sectional view of the sanitary fixture 4th , wherein a functional unit is also upstream of the diffuser in the direction of flow, and the embodiment is based on 6th across from the 5 differs only by the type of diffuser.

In the 1 , 3 and 5 Design variants of sanitary built-in parts which are known per se from the prior art and which are set up to form a water jet emerging from an outlet fitting are shown. For this purpose, the water jet is aerated by sucking in air, which is mixed with the water inside the built-in part.

The invention thus relates to a sanitary built-in part which is designed in particular as a jet regulator, preferably as a ventilated jet regulator. Built-in parts of this type generally have at least one flow-determining functional unit 2 and one in the direction of flow 3 after the flow-determining functional unit 2 arranged diffuser 4th on.

Such a diffuser 4th has a diffuser space 5 on, which in its dimensions at least partially by a baffle 6th is limited.

The baffle 6th is set up to move into the diffuser space in the position of use and / or during operation 5 to deflect incoming water in a lateral direction. The diffuser room 5 itself has several outlet openings 7th on, through which the on the baffle 6th split water jet in the form of individual jets from the diffuser space 5 exit.

It has been found, however, that especially at low flow rates, which can be in the range of 1 gpm +/- 10%, in particular +/- 20%, for example, there is insufficient ventilation of a water jet flowing through the built-in part, formed and aerated therein he follows. Therefore, with previously known built-in parts, it is not possible to generate an attractive outlet jet pattern that is desired by the customer.

The 2 , 4th and 6th show a possible embodiment of a sanitary built-in part according to the invention, which is designated as 1 as a whole.

The sanitary fixture 1 has the advantage over previously known built-in parts that even small flow rates of water can be sufficiently ventilated so that an attractive ventilated outlet jet pattern is generated.

To one in the diffuser room 5 The diffuser space also has the ability to adequately divide the inflowing amount of water 5 As has already been described above for the previously known built-in part, one is the diffuser space 5 at least partially delimiting impact surface 6th on.

The sanitary insert 1 is now characterized by the fact that on the baffle 6th a slope 8th that connects to the baffle 6th impinging water and draining from it in the direction of the outlet openings 7th accelerates and expires. The slope 8th can thus serve to accelerate running water in order to move it in the direction of the outlet openings 7th to transport.

It has also proven to be advantageous if the outlet openings 7th a lateral exit direction, in particular a lateral exit direction that is parallel or almost parallel to the impact surface 6th runs, set. This can be achieved in that the outlet openings 7th a circumferential side wall 9 of the diffuser 4th break through.

The outlets 7th each have a width b, 10 . Adjacent outlets 7th , especially all adjacent outlets 7th , can be equidistant from each other a, 11 be arranged. In the built-in part according to the invention 1 it has proven to be advantageous in relation to the production of an optimal outlet jet pattern at low flow rates if a ratio b / a (b divided by a) is less than 0.41.

The diffuser 4th has at least one inlet opening 12th on, one in the position of use through the at least one inlet opening 12th incoming water jet on the impact surface 6th hits and is divided. The at least one inlet opening 12th is therefore set up in such a way that an entry direction of the water jet is determined in such a way that it hits the impact surface 6th strikes, in particular exclusively on the baffle 6th hits. The sanitary fixture 1 can have multiple inlets 12th have, in particular all of them on the baffle 6th aligned and / or above the impact surface 6th are arranged.

The baffle 6th is aligned in relation to the inflowing water jet in such a way that a high flow resistance arises. This can be achieved by making the baffle 6th , which can be designed as a baffle plane, is oriented vertically or almost vertically in relation to an angle of incidence of the water jet flowing in in the position of use.

The slope 8th is opposite the baffle 6th , in particular with respect to a plane of the impact surface 6th to be inclined at an angle downwards and / or from the inside out. This angle can be at least 5 degrees, in particular at least 10 degrees, in particular at least 15 degrees, in particular at least 20 degrees, in particular at least 25 degrees, preferably about 30 degrees.

The diffuser space can be annular or disk-shaped.

The outlets 7th are in the 1-6 Embodiments shown at least partially as outwardly extending material recesses 13th educated. The material recesses 13th can therefore act like channels to reduce flow turbulence.

The material recesses 13th can each have a minimum distance that is at least 2%, in particular at least 3%, in particular at least 4%, in particular at least 5%, in particular at least 6%, in particular at least 7%, in particular at least 8%, in particular at least 9%, in particular at least 10% , of a diameter 14th of the diffuser space 5 corresponds to.

The diffuser room 5 is between the baffle 6th and the flow-determining functional unit 2 formed, wherein it is on the inflow side through the functional unit 2 and on the downstream side through the baffle 6th is limited.

The flow-determining functional unit 2 has at least one flow limiter 15th and / or at least one throttle. In general, it can be said that the functional unit changes or can change the flow rate and / or that there is a pressure difference between the sections before and after the functional unit.

A quantity limiter 15th In the context of the invention, it can refer to the fact that the flow limiter has a working range 15th a pressure-independent setting, in particular automatic setting, of a flow rate takes place. It is thus possible to set a flow rate that is as constant as possible. In contrast, the flow rate of the throttle changes depending on the prevailing pressure.

The sanitary fixture 1 has a housing 16 on which the diffuser 4th and / or the at least one flow-determining functional unit 2 are at least partially used.

The case 16 has a wall 17th one of the outlet openings 7th in the direction of flow 3 downstream, in particular ring-shaped, collecting chamber 18th laterally limited. The collection chamber 18th can serve to ventilate the water jet and can therefore also have ventilation openings for sucking in air, in particular from the outside.

The case 16 thus has an influence on the flow behavior of the water flowing through it. Together with the diffuser 4th defines the housing 16 thus the direction of flow 3 of the water through the built-in part 1 and / or contributes to beam shaping and / or beam ventilation. There is thus an interaction between the diffuser that determines the shape of the outlet stream 4th and the case 16 why the case 16 also as a diffuser ring 23 can be designated.

On and / or on the edge of the impact surface 6th are several dividing elements, in particular arranged on a circular path 19th educated. The dividing elements 19th are the outlet openings in the direction of flow 3 upstream. In the variant shown, they subdivide the edge and / or an outer edge 20th the drainage slope 8th in subsections.

The dividing elements 19th can be designed, for example, as ramps and / or wedges rising in the direction of the outlet openings, as in FIGS 1-6 is shown.

After the slope 8th is a stage 22nd formed which lead to one of the drainage slope in the direction of flow 3 downstream collection chamber 21 leads. The collection chamber 21 therefore represents part of the diffuser space 5 represents a height of the collection chamber 21 is higher than the rest of the diffuser space 5 , especially in the area of the impact surface 6th .

The 1-6 also refer to a series of at least two variants 24 , 25th of sanitary fittings 1 .

The variants 24 and 25th only differ in the type of diffuser that is built into them.

The functional unit 2 and / or the housing 16 , especially the diffuser ring 23 , of the two variants 24 , 25th is designed identically.

The at least two variants 24 , 25th the series have different diffusers 4th which differ in that the at least two types of diffusers 4th Outlet openings 7th with a different opening dimension. The first variant 24 is therefore a smaller flow class than the second variant 25th assigned.

It can further be said that a ratio of a width b of the respective outlet openings 7th to a respective distance a between two adjacent outlet openings 7th with the first variant 24 smaller than the second variant 25th is.

More precisely, it can be said that the ratio b / a of the first variant 24 is less than 0.41 and / or that the ratio b / a of the second variant 25th Is 0.41 or greater than 0.41.

As from the 1 and 3 can be seen, the diffuser 4th the second variant 25th no slope 8th on. Rather, it is the baffle 6th extends here and forms a sharp, especially right-angled edge. The water flows over the sharp edge and falls into the collecting chamber 21 .

The invention thus relates in particular to a sanitary built-in part 1 , with at least one flow-regulating functional unit 2 and one in the direction of flow 3 after the flow-regulating functional unit 2 arranged diffuser 4th , being the diffuser 4th a diffuser space 5 having, wherein the diffuser space 5 partly by a baffle 6th is limited to that in the diffuser space 5 inflowing water in a radial direction towards several outlet openings 7th deflects, being oblique to the impact surface 6th a slope 8th is arranged on the baffle 6th impinging water and draining from it in the position of use in the direction of the outlet openings 7th expires.

List of reference symbols

1

Sanitary installation part

2

Flow-determining functional unit

3

Direction of flow

4th

Diffuser

5

Diffuser space

6th

Baffle

7th

Outlet opening

8th

Drainage slope

9

Sidewall

10

Width (b)

11

Distance (a)

12th

Inlet opening

13th

Material recess

14th

Diameter of the diffuser space

15th

Flow limiter

16

casing

17th

Wall

18th

Collection chamber

19th

Dividing element

20th

Outer edge of the drainage slope

21

Collection chamber

22nd

step

23

Diffuser ring

24

First variant

25th

Second variant

Claims (17)

Sanitary installation part (1), with at least one flow-determining functional unit (2) and a diffuser (4) arranged in the flow direction (3) after the flow-determining functional unit (2), the diffuser (4) having a diffuser space (5), the diffuser space (5) is partially delimited by a baffle (6) which deflects water flowing into the diffuser space (5) in a lateral direction, the diffuser space (5) having several outlet openings (7), characterized in that the baffle (6 ) a drainage slope (8) is connected, which allows water impinging on the impact surface (6) and draining therefrom in the position of use to drain off in the direction of the outlet openings (7). Sanitary installation part (1) according to the preamble Claim 1 or after Claim 1 , characterized in that the outlet openings (7) break through a circumferential side wall (9) of the diffuser (4), that the outlet openings (7) each have a width (b, 10), that two adjacent outlet openings (7) are each spaced apart (a, 11) are arranged at a distance from one another, and that a ratio b / a is less than 0.41. Sanitary installation part (1) according to one of the Claims 1 or 2 , characterized in that the diffuser space (5) has at least one inlet opening (12), a water jet entering through the at least one inlet opening (12) in the use position impinging on the impact surface (6) and being divided. Sanitary installation part (1) according to one of the preceding claims, characterized in that the impact surface (6) is oriented vertically or almost vertically in relation to an angle of incidence of the water jet flowing in in the position of use. Sanitary built-in part (1) according to one of the preceding claims, characterized in that the drainage slope (8) is inclined downwards and / or from the inside to the outside at an angle with respect to the baffle surface (6), in particular where the angle is at least 5 degrees, in particular at least 10 degrees, in particular at least 15 degrees, in particular at least 20 degrees, in particular at least 25 degrees, preferably about 30 degrees. Sanitary installation part (1) according to one of the preceding claims, characterized in that the diffuser space (5) is ring-shaped or disk-shaped and / or that the outlet openings (7) are at least partially designed as outwardly extending material recesses (13), preferably material recesses (13) extending radially outward, in particular wherein the material recesses (13) each have a minimum distance which corresponds to at least 2% of a diameter (14) of the diffuser space (5). Sanitary installation part (1) according to one of the preceding claims, characterized in that the diffuser space (5) is formed between the baffle surface (6) and the flow-determining functional unit (2) and / or that the outlet openings (7) are followed by a diffuser ring (23) is formed or arranged. Sanitary installation part (1) according to one of the preceding claims, characterized in that the flow-determining functional unit (2) has at least one flow limiter (15) and / or at least one throttle. Sanitary installation part (1) according to one of the preceding claims, characterized in that the sanitary installation part (1) has a housing (16) into which the diffuser (4) and / or the at least one flow-determining functional unit (2) is / are inserted , preferably wherein the housing (16) has a circumferential, in particular closed, wall (17) which laterally delimits an in particular annular collecting chamber (18) downstream of the outlet openings (7) in the direction of flow (3). Sanitary built-in part (1) according to one of the preceding claims, characterized in that at least one dividing element (19) is arranged on and / or on the baffle surface (6), in particular on the edge of the baffle surface (6), in particular with several, preferably on Dividing elements (19) lying in a circular path are arranged and / or wherein the dividing elements (19) are arranged in the radial direction and / or in relation to one or the flow direction (3) as a flow obstacle in front of an outlet opening (7). Sanitary installation part (1) according to one of the preceding claims, characterized in that a collecting chamber (21) is formed between the outlet openings (7) and an outer edge (20) of the drainage slope (8) within the diffuser space (5), preferably with one The height of the diffuser space (5) in the area of the collecting chamber (21) is higher than a height of the diffuser space (5) in the area of the baffle surface (6), and / or that one or the outer edge (20) of the drainage slope (8) passes through a Step (22) is formed. Series with at least two variants (24, 25) of a sanitary installation part (1), in particular with at least one variant corresponding to a sanitary installation part (1) according to one of the preceding claims, with each variant at least one functional unit (2), at least one housing (16 ) and / or a diffuser ring (23), and at least one diffuser (4), characterized in that the at least two variants (24, 25) have different types of diffusers (4), that the at least two types of diffusers (4 ) have differently designed flow-determining outlet openings (7), in particular wherein the first variant has a smaller flow class than the second variant. Series according to Claim 12 , characterized in that a ratio of a width b of an outlet opening (7) to a distance a between two adjacent outlet openings (7) is smaller in the first variant than in the second variant. Series according to one of the preceding claims, characterized in that the first variant (24) is designed as a sanitary built-in part (1) according to one of the preceding claims. Series according to one of the preceding claims, characterized in that the ratio b / a of the first variant (24) is less than 0.41 and / or that the ratio b / a of the second variant (25) is 0.41 or greater than 0 , 41 is. Series according to one of the preceding claims, characterized in that the housing (16) and / or one or the diffuser ring (23) of the at least two variants (24, 25) is structurally identical. Series according to one of the preceding claims, characterized in that the second variant (25) has no drainage slope (8) on the diffuser (4).

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