EP1785193B1 - Sanitary build-in piece - Google Patents

Abstract

The sanitary fitting (1) has a housing (6) with a spray regulator (4), fitted with at least one insert (5a,5b) with lateral bars across the water flow to define passage openings (12) between them. The bars of the insert(s) form a grid or a net, with intersection points (10). The water flow to the spray regulator is passed through a perforated plate (2) to give water sprays.

Description

The invention relates to a sanitary fitting in the sense of claim 1. From the DE 100 27 987 A1 and the same content DE 200 10 099 U A jet regulator with a jet regulator housing is already known, in the interior of which a jet regulating device is provided which has a plurality of insertion parts which can be successively inserted into the jet regulator housing in the flow direction. These inserts each have an outer support ring, which is connected on the inside with approximately parallel extending, spaced-apart webs. The webs bound respectively via the passage cross-section extending, unidirectionally limited passage openings, wherein the passage openings of adjacent insertion parts are arranged offset in the circumferential direction of the mounting housing to each other. With the help of the provided in the prior art aerator inserts can complex, the flow velocity strong decelerating and a pearlescent-soft water jet forming mesh-like or cascade-shaped structures are formed, which can be produced with little effort and by means of conventional manufacturing techniques insert parts not to an undesirable calcification. In order to achieve an effective speed reduction of the incoming water, it is advisable to arrange the webs of each insert with the smallest possible distance from each other. However, if this distance between the webs of an insert part is dimensioned too small, there is a risk that the dirt particles flowing in the line network do not slip between the webs and therefore can increasingly impair the function of the previously known jet regulator.

From the US 6 152 182 A is a sanitary fitting of the type mentioned above, which is designed as an insertable into the outlet nozzle of a sanitary outlet fitting jet regulator. The previously known jet regulator has a perforated plate, which serves as a jet disintegrator and decomposes the incoming water into a plurality of individual jets. This Strahlzerleger downstream of a Strahlreguliereinrichtung is to homogenize and form the overall beam formed from the merged individual beams. The Strahlreguliereinrichtung has at least one insertable in the built-in housing insert, which has transversely oriented to the flow direction webs, which define between them flow openings. From Figure 10 of US 6 152 182 A It can be seen that these webs can be designed as circular, circumferentially spaced and offset from one another arranged rings which are arranged concentrically to an axial support arm and held thereon. These circularly surrounding rings practically form a water-guiding cascade, but they are neither latticed nor reticulated, nor do they have a whole crowd, in each case in a plane at intersection node crossing webs. Since the Strahlreguliereinrichtung the previously known jet regulator forms only a water supply cascade without lattice or net-like structures, a division of the water flow into a plurality of individual jets is neither sought nor possible.

There is therefore in particular the task of creating a cost-producible and functionally reliable sanitary fitting of the type mentioned, which allows the best possible Strahlreguliereigenschaften even on a relatively small cross-sectional area.

The achievement of this object is in the sanitary fixture of the type mentioned in particular that the Strahlreguliereinrichtung comprises at least two insertion parts, the webs grid or net-like, crossing at intersection nodes are arranged, that an inflow-side insert part has a bevy of radial webs, which intersect at the intersection node with a family of concentric and annular circumferential webs, and that a downstream Einsetzteil is configured lattice-shaped and has two intersecting shares parallel bars.

The built-in part according to the invention has, inside its built-in housing, a jet regulating device which comprises at least two insertion parts, the webs of which are arranged like a lattice or net, crossing at crossing nodes. As a result of this grid-like or net-like structure, the at least one insertion part can also have a multiplicity of webs on a comparatively small cross-sectional area, which divide the inflowing water flow into a plurality of individual beams. In this case, an inflow-side insertion part has a group of radial webs, which adjoin the Cross crossing knots with a group of concentric and ring-shaped webs. In addition, an outflow-side insert part is provided, which is configured in a lattice-like manner and has two intersecting shares of parallel bars. Since an inflow-side insertion part is made net-shaped, while an outflow-side insertion part is formed like a lattice, the good Strahlreguliereigenschaften are further favored. Thus, even at high flow rates on a relatively small cross-sectional area with low production costs, an effective mixing and jet control can be achieved. Even with a large number of webs, these can be arranged in a lattice-like or net-like manner relative to one another in such a way that the passage openings are nevertheless sufficiently large to allow dirt particles entrained in the liquid flow to pass through

The built-in part according to the invention is designed as a jet regulator in a preferred embodiment. A development according to the invention therefore provides that the Strahlreguliereinrichtung upstream of a Strahlzerlegeeinrichtung for decomposing the incoming liquid stream is arranged in a plurality of individual jets and that at least one insertion of the Strahlreguliereinrichtung is arranged relative to the jet disintegrating means so that the individual jets on crossing nodes of the at least one insertion part incident. A deceleration of the inflowing liquid and a division of the individual jets flowing into the jet regulating device can be achieved particularly effectively if the individual jets strike crossing nodes of the at least one insertion part.

The jet disintegrating device of the built-in part according to the invention can be designed, for example, as a baffle plate.

Excessive noise is avoided, however, when the jet disintegrating device is designed as a perforated plate.

To increase the distribution of the individual beams even more and in order to additionally improve the beam regulation properties even on a small cross-sectional area, it is provided according to the invention that at least two adjacent insert parts are provided with webs or net-like arranged webs. These insert parts have webs crossing at intersection nodes, which divide the inflowing water flow into a multiplicity of individual beams. At the intersection of the Einsetzteile each water jet is again so effectively divided into several individual beams that even at high flow rates on a relatively small cross-sectional area an effective mixing and beam control can be achieved. The built-in component according to the invention is therefore distinguished by the best possible beam regulation properties even on the smallest cross-sectional area.

In a further embodiment according to the invention, which is characterized by a particularly effective division of the water jets in a small space, it is provided that the passage openings of an insert part, the crossing nodes of the adjacent insert part are downstream in the flow direction.

A space-saving embodiment of the installation part according to the invention, which also saves space in the axial direction, provides that the webs of at least one insertion part are arranged in a plane oriented preferably transverse to the direction of flow and the insertion parts are in particular plate-shaped.

In order to reunite the individual beams generated in the jet regulating device from the outflow side to form a homogeneous, non-spraying total jet, it is advantageous if the jet regulating device downstream of a flow rectifier, the passage openings has, whose opening width is smaller than the height in the flow direction. It is particularly expedient if the flow rectifier is arranged at the outlet end of the built-in housing.

The flow straightener can be integrally connected to the built-in housing or used as a separate insert in the built-in housing. While a flow rectifier which can be used as a separate insert part in the built-in housing additionally supports the modular construction of the built-in component according to the invention, a flow rectifier connected in one piece with the built-in housing can also serve as a downstream vandalism protection of the built-in part. The flow rectifier of the built-in part according to the invention can be adapted in its design to the application and the purpose. For example, it is provided that the flow rectifier has rectangular, circular segment-shaped or honeycomb-shaped passage openings. It is also possible that the flow rectifier and / or the Strahlreguliereinrichtung have at least one metal mesh.

The built-in part according to the invention is designed as a jet regulator in a preferred embodiment. In a built-in as a jet regulator built-in provides a further development according to the invention that the built-in housing is divided into at least two housing parts, that the housing parts are connected to each other and that an inflow-side housing part with the jet disintegrating device is firmly and permanently connected.

In this embodiment, the built-in housing is divided into at least two housing parts and thus at least in an inflow-side and a downstream housing part. Of these housing parts an inflow-side housing part is firmly and permanently connected to the jet disintegrating device. Since even a comparatively sensitive jet disintegrating device is securely, firmly and securely connected to the housing part at its peripheral edge, no significant functionally impairing deformation of the jet disintegrating device is to be expected, even under hot water temperatures and high water pressures. Since the jet disintegrating device is held firmly and permanently on the inner wall of the housing and since there is no longer required an annular flange as a support for the jet disintegrating device, the jet regulator can be designed with a relatively small housing diameter even at high flow rates, as in the prior art only at Beam regulators with low flow rate was possible. By firmly connected to the built-in housing jet disassembling the installation housing undergoes a radial reinforcement, which makes the sleeve-shaped mounting housing also a total of fracture and dimensionally stable. While in prior art beam regulators, in which a separate perforated plate was mounted as jet disintegrating device in the outer housing, always sealing problems between perforated plate and sleeve-shaped outer housing occurred, the jet regulator according to the invention has the significant advantage that these sealing problems do not arise due to the one-piece between Strahlzerlegeeinrichtung and zuströmseitigem housing part. Since the built-in housing consists of at least two mutually connectable housing parts, yet the Strahlzerlegeeinrichtung downstream in the flow direction Strahlreguliereinrichtung and optionally other required functional units can be used in the built-in housing. The built-in part according to the invention designed as a jet regulator is therefore characterized by a high Dimensional stability with low manufacturing costs.

If a strong or less strong deceleration of the water flow in the installation part according to the invention is desired, an adaptation of the built-in part by replacing the Strahlreguliereinrichtung and its downstream functional units is possible. A preferred embodiment according to the invention therefore provides that at least two, optionally be inserted into the built-in housing Strahlreguliereinrichtungen are assigned to the existing of at least two interconnectable housing parts built-in housing.

The inflow-side housing part of the built-in part designed as a jet regulator can be produced with little effort as a one-piece plastic injection-molded part, when the jet disintegrating device is integrally connected to its associated housing part.

The expense associated with the manufacture of the mounting part is additionally reduced if the built-in housing has two housing parts which can be connected to one another in a parting plane oriented transverse to the inflow direction.

The housing parts of the mounting part according to the invention can be particularly easily and conveniently connected to each other when these housing parts of the built-in housing are releasably locked together. Instead, it is also possible to firmly connect at least two housing parts, for example by an adhesive or welded connection.

A preferred embodiment according to the invention provides that a downstream housing part is designed sleeve-shaped and that in this housing part at least one insert part of the Strahlreguliereinrichtung is used. there It is advantageous if the at least one insert part can be inserted into the housing part assigned to the jet regulating device from its inflow side up to a plug-in stop or a support.

In order to be able to easily adapt the built-in component according to the invention to the different requirements even when using the same built-in housing, this built-in housing can be assigned a plurality of jet regulator devices that can optionally be inserted into the built-in housing. In addition or instead, it is possible that the Strahlreguliereinrichtung of the jet regulator is modular and it is associated with a plurality of selectively combinable with each other insert parts.

A preferred embodiment according to the invention provides that the outlet-side housing part at least in the region of the water outlet opening has a soft and / or water-repellent surface. The advantage of this embodiment is the absence of calcification in the region of its water outlet opening. In addition, in particular a soft surface can be easily cleaned by manually stripping any deposits.

For the same reasons, it may be advantageous if, in addition or instead, the outlet-side housing part is made of an elastic material at least in the region of the water outlet opening. It is preferable to use rubber, silicone, thermoplastic elastomers or other rubber-elastic materials.

In order to favor the ease of manufacture of the jet regulator according to the invention also in the region of its outlet-side housing part, it is advantageous if the outlet-side housing part substantially of an elastic material and / or a material with soft or water-repellent Surface is made.

Thus, a housing part made of rubber-elastic material is sufficiently stable in itself and can be secured for example by a latching connection to the adjacent housing part, it is advantageous if the outlet-side housing part is stiffened by circumferentially preferably evenly distributed longitudinal webs.

In this case, a preferred embodiment according to the invention provides that the longitudinal webs are provided at least in the region of the outlet opening.

A particularly advantageous embodiment according to the invention provides that the outlet-side housing part in the region of the water outlet opening has at least one constriction or the like constriction of its flow cross-section. This constriction or the like constriction of the flow cross-section has a calibrating effect on the outflowing water jet and its jet pattern. The constriction of the flow cross-section is provided in the region of the water outlet opening and thus in a region downstream of possible interference contours in the flow direction. By calibrating the water jet, a homogeneous and non-squirting spray pattern is significantly favored.

In order to simplify the production of the jet regulator according to the invention even further, it is advantageous if the outlet-side housing part is preferably connectable to the housing part adjacent to the inflow side via an in particular circumferential detent connection.

Further features of the invention will become apparent from the following description of embodiments according to the invention Connection with the claims and the drawing.

Fig. 1

ein als Strahlregler ausgestaltetes sanitäres Einbauteil in einem Längsschnitt, das eine zuströmseitige Strahlzerlegeeinrichtung aufweist, der in Durchströmrichtung eine Strahlreguliereinrichtung nachgeschaltet ist, die mehrere voneinander beabstandete Einsetzteile hat, wobei ein Strömungsgleichrichter die abströmseitige Stirnseite dieses Strahlreglers bildet,

Fig. 2

ein Einsetzteil der Strahlreguliereinrichtung in einer Draufsicht (Fig. 2a) und in einem Längsschnitt (Fig. 2b), wobei das Einsetzteil sich an Kreuzungsknoten gitterförmig kreuzende Stege hat,

Fig. 3

ein mit Figur 2 vergleichbares Einsetzteil in einer Draufsicht (Fig. 3a) und in einem Längsschnitt (Fig. 3b),

Fig. 4

ein Einsetzteil in einer Draufsicht (Fig. 5a) und in einem Längsschnitt (Fig. 5b), das zwei Gruppen sich an Kreuzungsknoten kreuzender Stege hat, wobei eine Gruppe konzentrisch umlaufende Stege aufweist, während eine zweite Gruppe aus radialen Stegen besteht,

Fig. 5

ein mit Figur 4 vergleichbares Einsetzteil in einer Draufsicht (Fig. 5a) und in einem Längsschnitt (Fig. 5b),

Fig. 6

einen in das Gehäuse des Einbauteiles einsetzbaren Strömungsgleichrichter mit wabenartigen Durchströmöffnungen in einer Draufsicht (Fig. 6a) und in einem Längsschnitt (Fig. 6b),

Fig. 7

einen mit Figur 6 funktionell vergleichbaren Strömungsgleichrichter in einer Draufsicht (Fig. 7a) und in einem Längsschnitt (Fig. 7b), wobei der Strömungsgleichrichter kreissegmentförmige Durchströmöffnungen hat,

Fig. 8

ein siebartiges Einsetzteil, dessen Stege durch ein Metallsieb gebildet sind, wobei das Einsetzteil zusätzlich zu den in den Figuren 2, 3, 4 und 5 dargestellten Einsetzteilen und/oder zusätzlich zu den oder statt der in den Figuren 6 und 7 gezeigten Strömungsgleichrichter in das Einbau-Gehäuse einsetzbar ist, in einer Draufsicht (Fig. 8a) und in einem Längsschnitt (Fig. 8b), und

Fig. 9

ein mit Figur 8 funktionell vergleichbares Einsetzteil in einer Draufsicht (Fig. 9a) und in einem Längsschnitt (Fig. 9b), wobei das Einsetzteil - ähnlich wie in Figur 8 - hier ein quer zur Durchströmrichtung orientiertes Metallsieb aufweist.

It shows:

Fig. 1

a Sanitäres built-in part designed as a jet regulator in a longitudinal section, which has an inflow-side Strahlzerlegeeinrichtung downstream of a Strahlreguliereinrichtung having a plurality of spaced-apart inserts, wherein a flow straightener forms the downstream end side of this jet regulator,

Fig. 2

an insertion part of the jet regulating device in a plan view ( Fig. 2a ) and in a longitudinal section ( Fig. 2b ), wherein the insert part has lattice-shaped crossing webs at intersection nodes,

Fig. 3

one with FIG. 2 comparable insert part in a plan view ( Fig. 3a ) and in a longitudinal section ( Fig. 3b )

Fig. 4

an insert in a plan view ( Fig. 5a ) and in a longitudinal section ( Fig. 5b ), which has two groups of webs crossing at intersection nodes, one group having concentrically surrounding webs, while a second group consisting of radial webs,

Fig. 5

one with FIG. 4 comparable insert part in a plan view ( Fig. 5a ) and in a longitudinal section ( Fig. 5b )

Fig. 6

a usable in the housing of the insert flow straightener with honeycomb flow openings in a plan view ( Fig. 6a ) and in a longitudinal section ( Fig. 6b )

Fig. 7

one with FIG. 6 Functionally comparable flow straightener in a plan view ( Fig. 7a ) and in a longitudinal section ( Fig. 7b ), wherein the flow rectifier has circular segment flow openings,

Fig. 8

a sieve-like insert part whose webs are formed by a metal mesh, wherein the insert part in addition to those in the Figures 2 . 3 . 4 and 5 shown insertion parts and / or in addition to or instead of in the FIGS. 6 and 7 can be used in the built-in housing shown flow rectifier in a plan view ( Fig. 8a ) and in a longitudinal section ( Fig. 8b ), and

Fig. 9

one with FIG. 8 functionally comparable insert part in a plan view ( Fig. 9a ) and in a longitudinal section ( Fig. 9b ), wherein the insert part - similar to in FIG. 8 - Here has a transverse to the flow direction oriented metal mesh.

In FIG. 1 a sanitary fitting is shown, which is insertable into the outlet mouthpiece of a sanitary outlet fitting. The insert is here designed as a jet regulator 1, which serves to produce a homogeneous, pearly soft and non-squirting water jet. For this purpose, the jet regulator 1 has a jet disintegrating device 2, which may be formed, for example, as a baffle plate, but preferably-as here-designed as a perforated plate and divides the inflowing water flow into a plurality of individual jets.

For this purpose, the perforated plate 2 has a corresponding number of flow holes 3, which preferably taper conically in the flow direction, at least on an inflow-side hole section. So that dirt particles can not penetrate into the installation part 1 and there can lead to malfunctions, a front screen 17 is provided on the inflow side.

The jet decomposing device formed by the perforated plate 2 is followed by a jet regulating device 4 in the flow direction. This jet regulating device 4 is intended to strongly decelerate the individual jets coming from the jet disintegrating device 2, divide it into further individual jets and, if necessary, favor an air mixing in order ultimately to achieve a sparkling-soft water jet. For this purpose, the jet regulating device 4 has two insertion parts 5 which can be inserted into the installation housing 6 at a distance from each other.

In FIG. 1 It can be seen that the built-in housing 6 is designed in two parts and two detachably latched together housing parts 7, 8 has. In this case, the inflow-side housing part 7 with the perforated plate 2 in one piece and thus both fixed and inextricably connected. These housing parts 7, 8 are detachably connected to one another in a parting plane oriented transversely to the inflow direction. Since a relatively thin perforated plate 2 is securely and firmly connected to the housing part 7 at its peripheral edge, no significant functionally impairing deformation of the perforated plate 2 is to be expected, even with hot water temperatures and high water pressures. Since the perforated plate 2 is held firmly and permanently on the inner wall of the housing and since there is no need for an annular flange as a support for the perforated plate, the jet regulator 1 can be designed with a relatively small housing diameter even at high flow rates, as in the prior art only with beam regulators with low Flow rate was possible. Due to the fixedly connected to the built-in housing 6 perforated plate 2, the built-in housing 6 undergoes a radial reinforcement, which makes the sleeve-shaped mounting housing 6 also a total of fracture and dimensionally stable. Since the built-in housing consists of at least two detachably connectable to each other housing parts 7, 8, nevertheless the perforated plate 2 downstream in the flow direction Strahlreguliereinrichtung 4 and optionally other required functional units are inserted into the mounting housing 6. The jet regulator 1 is therefore characterized by a high dimensional stability and at the same time low production costs. The jet regulator 1 can be designed with a comparatively small housing diameter even at high flow rates. If different flow rates require a corresponding adaptation of the jet regulator 1, this is possible by exchanging the jet regulating devices downstream of the perforated plate 2 and similar functional units.

In FIG. 1 It can be seen that the downstream housing part 8 is designed sleeve-shaped and that in this housing part 8, the insert 5 of the Strahlreguliereinrichtung 4 can be used up to a plug-in stop 9. According to the invention, it is provided that the jet regulating device 4 comprises at least two insertion parts whose webs are latticed or net-like, intersecting at intersection nodes, an inflow-side insertion part 5c, 5e having a group of radial webs 11 'which adjoin the intersection node 10 a group of concentric and annularly extending webs 11 "intersect and an outflow-side insertion part 5a, 5b being designed in the form of a lattice and having two intersecting shares of parallel lattice bars 11. In this case, the intersection nodes 10 of the adjacent insertion part 5b can be connected downstream of the passage openings 12 of one of these insertion parts while at the same time the passage openings 12 of the outflow-side insertion part 5b are preceded by the crossing nodes 10 of the adjacent inflow-side insertion part in the flow direction.

The water jet flowing in to the built-in part 1 configured as a jet regulator is divided into a plurality of individual jets at each crossing node 10 of the inflow-side insertion part 5. These individual beams are in turn divided at the junction node 10 of the downstream in the flow direction insert part 5 in a plurality of further individual beams. The Strahlreguliereinrichtung 4 of the jet regulator 1 is characterized by the cascaded junction points 10 of their inserts 5 by a particularly effective deceleration of the incoming water jet on the smallest cross-sectional area.

The Strahlreguliereinrichtung 4 of the jet regulator 1 shown here is modular; the Strahlreguliereinrichtung 4 are assigned a plurality of optionally combinable with each other insert parts 5. By Lageorientierungsein- - or projections 13 at the outer peripheral edge of the insert parts 5, which cooperate with longitudinally oriented, complementarily shaped Lageorientierungsaus- or -einformungen on housing inner circumference of the housing part 8, a positionally correct arrangement of the insertion 5 is always ensured to each other in the housing 6 built-in.

This in FIG. 5 The inflow-side insertion part 5c shown has a set of radial webs 11 'which intersect at the intersection nodes with a group of concentrically and annularly extending webs 11. The webs 11 of each plate-shaped insertion part 5 are arranged in a plane oriented transversely to the throughflow direction.

In FIG. 1 it can be seen that the Strahlreguliereinrichtung 4 at the outlet end of the built-in housing 6, a flow rectifier 14 is connected downstream. From a comparison of FIGS. 6 and 7 It is clear that this flow rectifier 14, in which the opening width of the passage openings 15 is smaller than the height in the flow direction, for example, honeycomb ( Fig. 6 ) or circular segment ( Fig. 7 ) Passage openings 15 may have.

In the FIGS. 8 and 9 are shown here serving as a flow straightener inserts having a grid-shaped metal mesh.

Claims (30)

1. Sanitary installation part (1) which has a jet-regulating device (4) inside its installation housing (6), which jet-regulating device (4) comprises a plurality of insert parts which can be inserted into the installation housing (6) and which have webs which are orientated transversely to the through-flow direction and which define through openings (12) between them, characterised in that the jet-regulating device (4) includes at least two insert parts (5a, 5b; 5c, 5e), the webs (11) of which are disposed in a lattice-like or network-like manner, crossing at crossing nodes (10), that one of the at least two insert parts (5c, 5e) is disposed on the inflow side and has a group of radial webs (11') which cross at the crossing nodes (10) with a group of concentric and annularly circularly-extending webs (11"), and that one of the at least two insert parts (5a, 5b) is disposed on the outflow side, is formed in a lattice-like manner and comprises two mutually crossing groups of parallel lattice bars (11).
2. Installation part as claimed in claim 1, characterised in that, on the inflow side, a jet-splitting device for splitting the inflowing liquid flow into a plurality of individual jets is connected upstream of the jet-regulating device (4) and that at least one insert part of the jet-regulating device (4) is disposed relative to the jet-splitting device in such a way that the individual jets impact crossing nodes (10) of the at least one insert part.
3. Installation part as claimed in claim 2, characterised in that the jet-splitting device is formed as a perforated plate (2).
4. Installation part as claimed in any one of claims 1 to 3, characterised in that at least two adjoining insert parts (5a, 5b; 5c, 5e) are provided with webs (11) disposed in a lattice-like or network-like manner.
5. Installation part as claimed in any one of claims 1 to 4, characterised in that at least two insert parts (5a, 5b) are of the same construction.
6. Installation part as claimed in any one of claims 1 to 5, characterised in that the crossing nodes (10) of the adjoining insert part (5d, 5e) are connected downstream of the through openings (12) of one of these insert parts (5a, 5c) in the flow direction.
7. Installation part as claimed in any one of claims 1 to 6, characterised in that at least one inflow-side and/or one outflow-side insert part is disposed in a plane preferably orientated transversely to the through-flow direction.
8. Installation part as claimed in any one of claims 1 to 7, characterised in that the webs (11) of at least one insert part (5) are disposed in a plane preferably orientated transversely to the through-flow direction.
9. Installation part as claimed in any one of claims 1 to 8, characterised in that the insert parts (5) are formed in two-dimensional manner.
10. Installation part as claimed in any one of claims 1 to 9, characterised in that a flow rectifier (14) is connected downstream of the jet-regulating device (4) on the outflow side and comprises passage openings (15) with an opening width smaller than the height in the through-flow direction.
11. Installation part as claimed in claim 10, characterised in that the flow rectifier (14) is disposed at the discharge end of the installation housing (6).
12. Installation part as claimed in any one of claims 10 to 11, characterised in that the flow rectifier (14) is connected as one piece with the installation housing (6) or can be inserted as a separate insert part into the installation housing (6).
13. Installation part as claimed in any one of claims 10 to 12, characterised in that the flow rectifier (14) has rectangular, circular segment-shaped or honeycomb-shaped passage openings (15).
14. Installation part as claimed in any one of claims 1 to 13, characterised in that the installation housing is divided into at least two housing parts (7, 8), that the housing parts (7, 8) can be connected to each other in a preferably releasable manner and that an inflow-side housing part (7) is firmly and non-releasably connected to the perforated plate (2).
15. Installation part as claimed in claim 14, when dependent on claim 2, characterised in that the jet-splitting device (2) is connected as one piece with the housing part (7) allocated to it.
16. Installation part as claimed in any one of claims 1 to 15, characterised in that the installation housing (6) has two housing parts (7, 8) which can be connected in such a way that they can preferably be released from each other in a plane of separation orientated transversely to the inflow direction.
17. Installation part as claimed in any one of claims 14 to 16, characterised in that the housing parts (7, 8) of the installation housing (6) can be latched to each other in a releasable manner.
18. Installation part as claimed in any one of claims 14 to 17, characterised in that an outflow-side housing part (8) is formed in a sleeve-like manner and that the insert parts (5) of the jet-regulating device (4) can be inserted into this housing part (8).
19. Installation part as claimed in any one of claims 14 to 18, characterised in that the insert parts (5) can be inserted into the housing part (8) allocated to the jet-regulating device (4) from the inflow side thereof as far as to an insertion stop (9) or a contact face.
20. Installation part as claimed in any one of claims 14 to 19, characterised in that at least two jet-regulating devices which can be selectively inserted into the installation housing are allocated to the installation housing consisting of at least two mutually connectable housing parts (7, 8).
21. Installation part as claimed in any one of claims 10 to 20, characterised in that the jet-regulating device and/or the flow rectifier comprise at least one metal screen.
22. Installation part as claimed in any one of claims 1 to 21, characterised in that the jet-regulating device of the installation part (1) is constructed in a modular manner and a plurality of selectably mutually combinable insert parts (5a, 5b, 5c, 5e) are allocated thereto.
23. Installation part as claimed in any one of claims 1 to 22, characterised in that the at least two insert parts (5) are disposed one behind each other at a spaced disposition.
24. Installation part as claimed in any one of claims 14 to 23, characterised in that the outlet-side housing part (8) comprises a soft and/or a water-repelling water surface at least in the region of the water discharge opening.
25. Installation part as claimed in any one of claims 14 to 24, characterised in that the outlet-side housing part (8) is produced from an elastic material at least in the region of the water discharge opening.
26. Installation part as claimed in any one of claims 14 to 25, characterised in that the outlet-side housing part (8) is produced substantially from an elastic material and/or a material with a soft, preferably water-repelling surface.
27. Installation part as claimed in any one of claims 14 to 26, characterised in that the outlet-side housing part (8) is stiffened by longitudinal webs (22) preferably uniformly distributed in the peripheral direction.
28. Installation part as claimed in claim 27, characterised in that the longitudinal webs (22) are provided at least in the region of the discharge opening.
29. Installation part as claimed in any one of claims 14 to 28, characterised in that the outlet-side housing part (8) comprises at least one narrowing (23) or similar constriction of its through-flow cross-section in the region of the water discharge opening.
30. Installation part as claimed in any one of claims 14 to 29, characterised in that the outlet-side housing part (8) can be connected to the housing part (7) adjoining on the inflow side, preferably by means of a latch connection, particularly a circularly extending one.

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