Abstract: The water treatment system, particularly reverse-osmosis system, comprising a salt water container, is characterized in that the salt water container is arranged on a weighing device which measures the weight of the salt water container.

Abstract: The water treatment system, particularly pre-filtration unit of the water treatment system, comprising at least one chlorine sensor device, includes a salt-water treatment device which is connected to the chlorine sensor device, an electrolysis cell being disposed in the associated line, and thereafter a pump and a release valve.

Abstract: The coupling element is characterized in that that on the locking pieces, on the coupling element and on the nipple element there are formed circumferentially extending projections which viewed in cross-section are substantially roof-shaped or substantially serrated and which extend around a part of the whole circumference of the locking pieces, the coupling element and the nipple element and are elastically deformed during the inserting operation and lock in place one after the other, and that at least one circumferential section of the locking pieces, of the coupling element and of the nipple element are free of the roof-shaped or serrated projections and have guide means for the twist-proof inserting operation.

Abstract: The fluid system for supplying a dialysis device with permeate has a secondary ring line which is guided within a common insulating hose or another form-fit sheathing. Thus, heat loss is reduced and use is facilitated. The insulating hose having the inner lines is adapted to a flow-optimized coupling handpiece having low dead space, which can preferably be coupled to a mating coupling piece.

Abstract: A circulation pump and an electrochemical ozone generator are integrated into the permeate return line of an RO system, and the permeate return line is connected in flow direction behind the circulation pump and the ozone generator by a recirculation line to the permeate supply line, which can form a closed circuit where the ozonized permeate circulates until all organic contaminants have been killed or decomposed by the ozone in that part of the line system. Valves are integrated, respectively, into the recirculation line and the permeate return line downstream of the branch of the recirculation line. During normal operation of the RO system, the recirculation line valve is connected for feeding connected dialysis devices while the permeate return line valve is open, so excessive permeate that was not taken by the dialysis devices can flow into the supply tank. Alternatively, the permeate can be discharged into an outlet.

Abstract: The precursor of an acidic dialysis concentrate is characterized in that two separately provided partial concentrates are formed from the constituents of the acidic dialysis concentrate, wherein only the one partial concentrate contains glucose, preferably glucose monohydrate, while the other partial concentrate comprises other constituents needed for the acidic dialysis concentrate.

Abstract: The concentrate return line of a device for producing ultrapure water according to the reverse osmosis principle has inserted thereinto a venturi tube with the convergence chamber and the divergence chamber, with a suction hose being mounted on the suction opening of the venturi pump and being connectable by means of a coupling either upstream of the venturi pump and of a flow resistance means to the concentrate return line or to an external container which contains a disinfectant or a cleaning agent. A disinfecting process can thereby be substantially automated.

Abstract: The electrochemical ozonizer comprising at least one cell, each consisting of an anode, a cathode and an interposed full-area, cation-conducting membrane which is chemically stable to ozone as a solid electrolyte, is characterized in that the membrane conductively connects the anode and the cathode while forming flow channels for water that are separated from one another as anode and cathode chambers.

Abstract: The sampling valve comprises a valve body that is movable in a valve housing between a closing position and an opening position of the sampling valve, and is characterized in that the valve body comprises an outlet bore for the sample to be taken, the outlet bore continuously increasing in size towards the free end of the valve body, and that the lower edge of the outlet bore is sloping downwards towards the free end. After a sample has been taken, there will be no drops remaining in the outlet bore, whereby a source of contamination for a sample taken that has so far been encountered frequently is now eliminated.

Abstract: Reverse-osmosis modules, each containing a module tube with a module bottom and a module lid, and a reverse osmosis membrane arranged in the module tube and comprising a permeate collection tube, are characterized in that the reverse osmosis membrane has a fixed predetermined diameter and a length selected from predetermined length values.

Abstract: The mixing device for producing ready-for-use medical flush solutions, particularly for hemodialysis concentrates, comprising a source of ultrapure water which is connected via a supply line to a recirculation circuit in which a pump is disposed, comprising a computer and comprising a secondary-mixture connection line which is connectable to a feedstock container which prior to the beginning of the mixing operation contains powdery and/or granulated and/or slurried feedstocks that are to be mixed with the ultrapure water, is characterized in that a mixing venturi tube with its convergence chamber and its divergence chamber and a mixing valve are disposed in the recirculation circuit in flow direction one after the other.

Abstract: The supply device for dialysis apparatuses, comprising a permeate line and at least one concentrate line for supplying permeate and dialysis concentrate(s) to a dialysis apparatus to be mixed so as to obtain dialysis liquid, and comprising a waste water line for discharging waste water out of the dialysis apparatus, is characterized in that the waste water line is in communication with a substantially funnel-shaped outlet container into which the waste water falls in a free fall, thereby impinging on an inclined wall section of the outlet container. Virtually no noise is created that would be noticed by a patient, and a pivotable door is preferably arranged at the outlet container for permitting the taking of samples in an easy way from the outlet container by means of small test rods.

Abstract: The device for producing ultrapure water according to the reverse osmosis principle with a reverse osmosis filter which is subdivided by the RO membrane into a primary chamber and a secondary chamber, with a primary circuit through which raw water is supplied to the primary chamber and concentrate is discharged therefrom, and with a secondary circuit for supplying permeate to at least one consumer, preferably to a dialysis device, is characterized in that a means for detecting organic and/or inorganic deposits is arranged in or on the primary circuit and/or the secondary circuit and is connected to an evaluation means.

Abstract: A combination of a single-station reverse-osmosis (RO) device comprising a hemodialysis device (HD device) is characterized in that at least one cleaning chamber for the raw water and/or for the permeate is arranged, and that upon request by the HD device the permeate flows either via the water inlet valve into the HD device or via a flushing valve of the HD device to an outlet.

Abstract: The fluid system for supplying a dialysis device with permeate has a secondary ring line which is guided within a common insulating hose or another form-fit sheathing. Thus, heat loss is reduced and use is facilitated. The insulating hose having the inner lines is adapted to a flow-optimized coupling handpiece having low dead space, which can preferably be coupled to a mating coupling piece.

Abstract: A reverse osmosis system comprises a permeate collection tube which is connected at one end to a distribution system for permeate which comprises at least one device for cleaning and/or disinfection. The permeate collection tube, the cleaning and/or disinfection device and a circulation pump are arranged in a circulation circuit.

Abstract: The device for producing ultrapure water according to the reverse osmosis principle, comprising a reverse osmosis filter which is subdivided by the RO membrane into a primary circuit and into a secondary circuit, and a pump for the primary circuit, and a flow resistance means required downstream of the RO membrane for pressure build-up in the primary circuit, is characterized in that at least one cleaning chamber with decalcification means and a discharge valve are located in the primary circuit and that the flow in the primary circuit is adjustable via a valve.

Abstract: The supply device for dialysis apparatuses, comprising a permeate line and at least one concentrate line for supplying permeate and dialysis concentrate(s) to a dialysis apparatus to be mixed so as to obtain dialysis liquid, and comprising a waste water line for discharging waste water out of the dialysis apparatus, is characterized in that the waste water line is in communication with a substantially funnel-shaped outlet container into which the waste water falls in a free fall, thereby impinging on an inclined wall section of the outlet container. Virtually no noise is created that would be noticed by a patient, and a pivotable door is preferably arranged at the outlet container for permitting the taking of samples in an easy way from the outlet container by means of small test rods.

Abstract: The sampling valve comprises a valve body that is movable in a valve housing between a closing position and an opening position of the sampling valve, and is characterized in that the valve body comprises an outlet bore for the sample to be taken, the outlet bore continuously increasing in size towards the free end of the valve body, and that the lower edge of the outlet bore is sloping downwards towards the free end. After a sample has been taken, there will be no drops remaining in the outlet bore, whereby a source of contamination for a sample taken that has so far been encountered frequently is now eliminated.

Abstract: A filter module comprising a pressure pipe and a membrane disposed therein, having connections for a fluid to be fed, preferably untreated water, and for filtrate and retentate to be discharged, characterized by a functional/connection unit which is fastened in one end of the pressure pipe and has an upper part and a lower part, wherein all of the connections are provided on the upper part, and flow ducts which are in communication with the connections pass through the lower part, wherein the pressure pipe and the membrane have provided thereinbetween an open annular space through which the fed fluid flows to the bottom side of the membrane, and wherein the pressure pipe has a closed bottom.