Valve block for single use in a bio process

A valve block for single use in a bioprocess, comprising a plurality of valve units, the valve block comprising a one-piece block body having a main conduit formed therein and, for each valve unit

• at least one secondary conduit formed in the block body;
• a valve seat formed in the block body between the secondary conduit and the main conduit;
• a closure part formed in one piece from an elastically deformable material and having a gripping portion;
• an actuator which is coupled to the gripping portion of the closure part and can transfer the closure part from a first switching position of the valve unit, in which the closure part is pressed against the valve seat and blocks a fluid communication between the secondary conduit and the main conduit, to a second switching position of the valve unit, in which the closure part is lifted from the valve seat and unblocks the fluid communication between the secondary conduit and the main conduit,
• wherein the gripping portion of the closure part is arranged such that it is sealed off from both the main conduit and the secondary conduit in both switching positions of the valve unit,
• the valve seat being funnel-shaped and the closure part including a conical jacket portion which is adapted to the funnel shape of the valve seat,
• an edge area of the closure part being fixed in place on the block body, the gripping portion of the closure part being coupled to the jacket portion, and
• the jacket portion of the closure part continuing into a bottom, which faces the main conduit or the secondary conduit, and from which the gripping portion extends into a cavity of the closure part surrounded by the jacket portion.