Abstract: The invention relates to a sanitary safety device which is interposed in a water-supply line and there is insertable in an opening in the region of a coupling point or joint. It is characteristic of the sanitary safety device according to the invention that the sanitary safety device has a flow regulator (2) or similar restrictor as well as a backflow preventer (3), these being combined in the sanitary safety device to compose a constructional unit in the form of a cartridge (1). Such is insertable for example, in the opening of a recess in the form of a cartridge mount provided in a hose connector. The cartridge (1) composed of the flow regulator (2), backflow preventer (3) and any strainer attachment (8) at the inflow end can thus be interposed in a water-supply line in a simple fashion and with little effort.

Abstract: A fitting (1) designed for example as a non-return valve (2) has an outer housing (3) having an inner lip seal (7) interacting with a closing element (5), and also an outer annular seal (8). Both the outer housing (3) and the seals (7, 8) are designed as injection moldings. The production of the outer housing with the seals takes place in an injection molding process in which, first of all, the outer housing and, in a second operation, the seals are injection molded appropriate, more than two operations, in particular in the case of more than two injection molding material components, can also be provided. By means of the injection molded seals, the latter are durably and closely bonded to the outer housing (3) resulting in simplifications regarding production technology and design (FIG. 1).

Abstract: A strainer for water outlet fittings which has multiple strainer apertures, which possess approximately equal open hexagonal aperture cross sections. The opposite surfaces of common side walls are approximately parallel to each other. The strainer is characterized by comparatively low noise, high throughput and at the same time good straining and cleaning action.

Abstract: Jet regulator and aerator for attachment to a faucet contains a circular perforated plate for producing individual jets, and a coaxial sleeve downstream. The sleeve supports--deflection slopes which are inclined at an angle to the flow direction. The deflection slopes may be in the form of conical-pointed pins aimed at the plate. The pins are mounted on a tiered-wedding-cake shaped wall. An axial cone in the sleeve may also comprise a deflection slope. Additional obstacles consist of pins and/or ribs located at intervals from each other.

Abstract: A fitting (1) designed for example as a non-return valve (2) has an outer housing (3) having an inner lip seal (7) interacting with a closing element (5), and also an outer annular seal (8). Both the outer housing (3) and the seals (7, 8) are designed as injection moldings. The production of the outer housing with the seals takes place in an injection molding process in which, first of all, the outer housing and, in a second operation, the seals are injection molded. If appropriate, more than two operations, in particular in the case of more than two injection molding material components, can also be provided. By means of the injection molded seals, the latter are durably and closely bonded to the outer housing (3) resulting in simplifications regarding production technology and design (FIG. 1).

Abstract: A check valve wherein the housing has an inlet and a seat at one end and an outlet at the other end. The other end can receive a removable and reinsertable cage which serves to confine a selected one of several spherical and/or otherwise configurated valving elements to movements between a sealing position of engagement with the seat to seal the inlet from the outlet and an inoperative position in which the housing, the selected valving element and the cage define a path for the flow of a fluid from the inlet toward, through and beyond the outlet. The inserted valving element is biased against the seat by a spring or by the fluid when the pressure of fluid at the outlet exceeds the pressure of fluid at the inlet.

Abstract: A flow regulator for water or other fluids has a housing with an internal shoulder between its inlet and outlet. The shoulder faces the inlet and slidably supports an elastically deformable annular flow restrictor which cooperates with a centrally located stud to define an annular passage extending from the inlet to the shoulder and followed by an annular portion of the channel between a conically diverging stepped or roughened internal surface of the housing and a stepped or roughened conical external surfaces of a guide member which carries the stud. Deformation, and hence the flow restricting action, of the flow restrictor depends upon the pressure differential which is established by the conveyed fluid.