摘要:
A metering device for liquids, especially for viscous liquids, preferably liquids which are to be metered under sterile conditions, with a plurality of metering pumps which can be simultaneously actuated. To achieve an optimized mode of operation, it is provided that the surfaces on the bottom of the pump holding plate and the top of the metering channel plate are made as adjoining sealing surfaces, forming a seal, that, in the pump holding plate, there is a bypass channel with outlet openings in the sealing surface on the bottom of the pump holding plate for each metering pump and that by the relative displacement of the pump holding plate and the metering channel plate with respect to one another, the outlet openings of the bypass channel can be moved into a position in which the bypass channel connects the respective metering channel to the respective supply channel in the metering channel plate. In this position, the respective outlet opening is also connected to the metering channel or the supply channel so that overall flushing is possible.
摘要:
The invention relates to a dosing device for liquids, with a replaceable distributor rail (1) and a plurality of dosing units (2) that are hydraulically connected to the distributor rail (1), wherein each dosing unit (2) has a valve unit (3), preferably provided with a suction valve, a discharge valve and a discharge cannula (7), and, detachably arranged on the valve unit (3), a piston-cylinder unit (8) for drawing in and measured discharging of the liquid, wherein each valve unit (3) has a hydraulic connection element for detachable hydraulic connection to the distributor rail (1), wherein the distributor rail (1) has an elongate fluid supply line, which has at its end side a supply connection (14) for the liquid and has dosing unit connections which are detachably coupled to the hydraulic connection elements of the dosing units (2).
摘要:
A dosing device for liquids, with a distributor rail and a plurality of dosing units for the liquid that are hydraulically connected to the distributor rail. Each dosing unit has a valve unit, preferably a suction valve, a discharge valve and a discharge cannula. A piston-cylinder unit is detachably arranged on each valve unit for drawing in and measured discharging of the liquid. Each valve unit has a hydraulic connection element for detachable hydraulic connection to the distributor rail. The distributor rail has an elongate fluid supply line, a supply connection for the liquid being provided on an end of the distributor rail and dosing unit connections being distributed laterally along the length of the rail. Each of the dosing unit connections are detachably coupled to the hydraulic connection elements of the dosing units. The distributor rail is a replaceable part made of a preferably recyclable, injection-moldable plastic.