Assembly

An assembly for receiving a sensor adapted to measure at least one measurand of a medium in a process container, the assembly comprising:

• a substantially hollow, cylindrical housing configured to connect the assembly to the process container via a process connection and including an immersion portion, which is cylindrical at least in portions, wherein the immersion portion comprises a first opening and a second opening opposite the first opening;
• a rotationally movable valve body, at least portions of which are disposed in the immersion portion, which valve body extends along a longitudinal axis of the immersion portion and, on a side remote from the process connection, comprises a first valve body opening and a second valve body opening opposite the first valve body opening, thereby forming a channel,
• wherein a service chamber is defined in a region between the first and second valve body openings,
• wherein, in a first position of the valve body, the first opening, the second opening, the first valve body opening, and the second valve body opening collectively define an opening,
• in particular, the corresponding central points of the first opening, the second opening, the first valve body opening, and the second valve body opening are aligned as to enable a flow through the service chamber from the first opening, first valve body opening, and second valve body opening to the second opening and, when the valve body is in a second position, to block the flow through the service chamber;
• the sensor comprising a sensitive element, wherein the sensor is disposed in the valve body such that the sensitive element is disposed between the first and second valve body openings and, accordingly in the service chamber, such that the medium can flow against the sensitive element;
• and
• a head plate arranged on the side of the process connection facing away from the medium, the head plate comprising a first flushing connection and a second flushing connection,
• wherein the first flushing connection opens into a first channel, wherein the first channel is defined between the valve body and the sensor,
• wherein the second flushing connection opens into a second channel, wherein the second channel is defined between the valve body and the immersion portion.