A device for mixing and metering one or multi-component compounds from at least one cartridge. These compounds can be in the form of a basic component and a catalyst component for impression compounds for dental applications. This device includes a punch for admitting pressure to the cartridge. This punch is supported in a displaceable manner, and is associated with each cartridge. This device also includes a hydraulic circuit which is associated with said at least one punch so that it actuates a piston or a cylinder of a hydraulically actuated piston cylinder unit. This device includes at least one pump and a supply container. This invention also includes a valve arrangement for this device.