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DE-102024132643-A1 - Valve housing for a sanitary fitting and method for manufacturing a valve housing

DE102024132643A1DE 102024132643 A1DE102024132643 A1DE 102024132643A1DE-102024132643-A1

Abstract

Fitting housing (1) for a sanitary fitting (2), at least comprising: - a spout (3) with a discharge opening (4) for a liquid; - a metal assembly (5) comprising at least a cartridge receptacle (6) for a mixing valve and a fluid guide tube (7) extending at least partially from the cartridge receptacle (6) through the outlet (3), wherein the metal assembly (5) is at least partially encapsulated with a zinc alloy (8). Furthermore, a method for manufacturing a valve body (1) for a sanitary fitting (2) is proposed.

Inventors

  • Jan KRUSE
  • Daniel Berghoff

Assignees

  • GROHE AG

Dates

Publication Date
20260513
Application Date
20241108

Claims (7)

  1. Fitting housing (1) for a sanitary fitting (2), comprising at least: - a spout (3) with a discharge opening (4) for a liquid; - a metal assembly (5) comprising at least a cartridge receptacle (6) for a mixing valve and a liquid guide tube (7) extending at least partially from the cartridge receptacle (6) through the spout (3), wherein the metal assembly (5) is at least partially encased in a zinc alloy (8).
  2. Valve housing (1) according Claim 1 , wherein the cartridge holder (6) and the liquid guide tube (7) are materially bonded together.
  3. Valve housing (1) according to one of the preceding claims, wherein the liquid guide tube (7) extends to the outlet opening (4).
  4. Valve housing (1) according to one of the preceding claims, wherein the metal assembly (5) consists at least partially of stainless steel, copper, a copper alloy or brass.
  5. Valve housing (1) according to one of the preceding claims, wherein the zinc alloy (8) forms an outer contour (9) of the valve housing (1).
  6. Valve housing (1) according to one of the preceding claims, wherein the cartridge receptacle (6) has at least one connection (10, 11) for a liquid supply line (12, 13).
  7. A method for manufacturing a valve body (1) for a sanitary fitting (2), wherein the valve body (1) comprises a spout (3) with a discharge opening (4) for a liquid, comprising at least the following steps: a) forming a metal assembly (5) comprising at least a cartridge receptacle (6) for a mixing valve and a liquid guide tube (7); b) arranging the metal assembly (5) in a mold (14); and c) at least partially overmolding the metal assembly (5) with a zinc alloy (8).

Description

The present invention relates to a valve housing for a sanitary fitting and a method for manufacturing a valve housing. Such sanitary fittings allow, in particular, the demand-based dispensing of liquid at a washbasin, a sink, a shower, and/or a bathtub. Sanitary fittings are used, in particular, to mix cold and hot water to create a mixture with a desired temperature and to dispense the mixed water. In conventional sanitary fittings, the mixed water is directed from a mixing valve through fluid channels in the fitting body to an outlet opening on the fitting body. Since the mixed water is in contact with the fitting body, the fitting body must be made of a material suitable for drinking water and resistant to corrosion, such as brass. To enable the use of more cost-effective materials, such as zinc alloys, for valve bodies, sanitary fittings are already known in which a liquid channel within the valve body is designed as a tubular plastic insert. This plastic insert prevents the mixed water from coming into contact with the valve body and must be inserted into the spout through the outlet opening. For this to work, the spout and outlet opening must be designed so that the plastic insert can be inserted through the opening. Furthermore, a permanent core is used in the casting process, which must be reliably removable from the valve body after the molten metal has solidified. This further restricts the design freedom of the spout and/or outlet opening. The object of the invention is therefore to at least partially solve the problems described with reference to the prior art and, in particular, to provide a valve housing for a sanitary fitting that allows for greater design freedom. Furthermore, a method for manufacturing a valve housing for a sanitary fitting is to be provided, enabling the valve housing to be produced with greater design freedom. These problems are solved with a valve housing and a method according to the features of the independent claims. Further advantageous embodiments of the invention are specified in the dependent claims. It should be noted that the features listed individually in the dependent claims can be combined with one another in any technologically meaningful way and define further embodiments of the invention. In addition, the features specified in the claims are further specified and explained in the description, which also presents further preferred embodiments of the invention. This is achieved by a fitting housing for a sanitary fitting, which has at least the following features: - a spout with an outlet opening for a liquid; - a metal assembly comprising at least a cartridge receptacle for a mixing valve and a fluid guide tube extending at least partially from the cartridge receptacle through the outlet, wherein the metal assembly is at least partially encased in a zinc alloy. The valve body is particularly suitable for use with a sanitary fitting that mixes cold and hot water to produce mixed water at a desired temperature and/or dispenses the mixed water. The sanitary fitting is particularly suitable for use with a washbasin, sink, shower, and/or bathtub. The sanitary fitting may be a single-lever mixer. The valve body has a spout, which is particularly prominent or branching, and is rigidly or movably connected to the valve body. The spout may extend along a longitudinal axis. The valve body and/or the spout may be at least partially tubular. The valve body may be mounted on a support, such as a worktop, sink, washbasin, shower, bathtub, or wall. The spout has an opening through which a liquid, particularly (mixed) water, can be dispensed. The outlet opening can be configured with an angle to the outlet or the longitudinal axis of, for example, 60° to 90°, preferably (essentially) 90°. After the valve body is attached to the support, the outlet or the longitudinal axis of the outlet can be oriented, for example, (essentially) horizontally and/or the outlet opening (essentially) vertically. The valve body has a metal assembly comprising at least a cartridge holder for a mixing valve and a fluid guide tube. The metal assembly, the mixing valve, and/or the fluid guide tube consist at least partially or entirely of metal, in particular metal suitable for drinking water. By means of The mixing valve allows cold and hot water to be mixed to produce a mixture with a desired temperature. The cold water temperature can be a maximum of 25 °C, preferably 1 °C to 25 °C, and more preferably 5 °C to 20 °C, and/or the hot water temperature can be a maximum of 90 °C, preferably 25 °C to 90 °C, and more preferably 55 °C to 65 °C. The mixing valve can, for example, be designed as a mixing cartridge. The mixing valve is actuated, in particular, by means of an actuating element of the sanitary fitting, for example, in the form of an actuating lever (especially a swiveling and/or rotatable one). The actuating element allows, in particular, the adjustment of the mixed water temperature and