With the media-separated micro valve by STAIGER, we are offering a valve that features extremely small size and can carve out its own space in almost any application. In these valves, a separating membrane completely isolates the magnetic system so that the medium comes into contact only with the membrane and the valve body itself. Only inert materials that excel with adequate bio-compatibility, e.g., are used. The components which come into contact with the medium are manufactured from stainless steel 1.4305. The membrane is made from EPDM or FKM suitable for such applications. Through the structural design, an extremely small internal dead volume of only 1.4 µl is achieved. This ensures that there is no mixing of different reagents or media, which could e. g. otherwise collect in unrinsed nooks of the valve and thus lead to incorrect results. The valve can easily be integrated into a block of control elements due to the design of the cartridge.