DE3031371A1 - Flow control valve for sanitary fittings - has ribbed retainer for valve control disc, to reduce noise - Google Patents

Abstract

The low-noise valve has a housing with axial inlets and radial outlets, and a non-turnable valve seat disc with passage aperture. A valve control disc with a similar aperture and valve spindle engages on the seat disc. The down-stream disc, e.g. the valve control disc (2), is held by a co-axial retainer (4), which has radially bulkhead-type ribs (6), which extend from the central axis (12). These divide the passage aperture (9) into individual segments. The retainer is turnably held in the housing (1) via a valve spindle (3), and has a journal (5) for positive retention of the disc.

Description

Friedrich Grohe Armaturenfabrik GmbH & Co.

GRP - 453

Low-noise volume control valve il

The invention relates to a flow control valve with the im Features listed in the preamble of claim 1. In the known valves of this type it has been shown that they often show a relatively high level of noise development during operation. It has therefore already been suggested To arrange stoppers made of mesh, etc. in the flow paths and thereby a flow calming and thus noise reduction to achieve. However, it is relatively complex and difficult to secure appropriately designed screen bodies etc. in the valve to be arranged, in addition, these screen bodies are quite susceptible to contamination and calcification.

The invention is therefore based on the object of creating a low-noise valve that can be produced using simple means, which is also relatively less susceptible to contamination and deposits from the flow mediura.

This object is achieved according to the invention by the in the characterizing Part of claim 1 specified features solved. Further refinements of the invention are given in claims 2 to 4 specified.

An embodiment of the invention is shown in the drawing and is described in more detail below. It shows

Figure 1 is a flow control valve in longitudinal section;

FIG. 2 shows a section through the flow regulating valve according to FIG. 1 in plane II;

FIG. 3 shows an enlarged, schematically illustrated section of the flow regulating valve according to FIG Figure 1 to illustrate the flow processes.

The flow regulating valve is in the figure 1 in the installed state shown in a partially shown fitting 2. The flow regulating valve is a unit in one Housing 1 arranged. With a valve spindle 3 protruding from the housing 1, a gear unit can rotate in the housing 1 mounted holding member 4 are rotated. The holding member 4 is in a form-fitting manner with an upstream one Valve regulating disc 7 connected, which cooperates with a valve seat disc 8 held coaxially but non-rotatably in the housing. The two valve discs have identical dimensions and are each with a passage opening 9, which is from one Circle segment is formed with a chord located near the central axis 12 of the circle. The holding member 4 is to form-

coherent recording of the valve regulating disc 7 with a axially protruding cuboid pin 5 provided in a correspondingly designed slot in the valve regulating disk 7, which is approximately perpendicular to the chord. Radiant from the circular center axis 12 are bulkhead-like on the holding member 4 in the area of the downstream end face Ribs 6 are formed, as can be seen in particular from FIG. 2, which form the passage opening 9 of the valve regulating disk 7 divided into individual segments. In addition, this area of the holding member is designed such that the flow is diverted from an axial to a radial one. The ribs 6 are dimensioned so that they the passage opening 9 almost reach through, as can also be seen from FIG. The holding member 4 with pin 5 and is expedient Ribs 6 made in one piece by pressure or injection molding from metal or suitable plastic. When the flow regulating valve is actuated, the medium supplied to the inflow opening 10 passes through the passage opening 9 of the valve seat disk 8 and then, as shown particularly clearly in FIG. 3, in Segments delimited by the ribs 6 and is broken down and diverted here into only low turbulence-generating partial flows discharged radially through drainage openings 11 into the fitting 2.

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Claims (4)

Friedrich Grohe Armaturenfabrik GmbH & Co. GRP - 453 EXPECTATIONS Flow control valve, especially for sanitary fittings, with an axial inlet and radial outlet openings, insertable in fittings housing, in the transverse a valve seat disk provided with at least one passage opening is held non-rotatably relative to the longitudinal axis is and on the one also with at least one passage opening provided, with a valve spindle mounted in the housing rotatable valve regulating disc rests, thereby characterized in that the downstream disc is received by a coaxial support member (4) is provided with radially open, bulkhead-like ribs (6) running radially from the central axis (12) is, so that at least the cross section of the passage opening (9) is divided into individual segments. 2. Quantity regulating valve according to claim 1, characterized in that that the ribs (6) in the area of the passage opening (9) almost reach through axially. 3. Quantity regulating valve according to claims 1 and 2, characterized in that the rotatable valve regulating disc (7) is arranged downstream and the holding member (4) is rotatably supported in the housing (1) via a valve spindle (3) is, wherein the holding member (4) has an approximately cuboid pin (5) for the form-fitting reception of the valve regulating disc (7) and the ribs (6) are formed approximately radially to the pin (5). 4. Quantity regulating valve according to claims 1 to 3, characterized in that the holding member (4) with pin (5) and Ribs (6) in one piece, preferably by injection or die casting is made.