Connection pieces for measuring instruments, and which is provided with such a connection piece, the measuring probe

摘要

The present invention relates to a connection piece for measuring devices for the examination of a fluid flowing in a pipeline, with a disk-shaped a trim ring (11), the two substantially planar end faces (12, 12 ''), an outer circumferential surface (13) and a, an axial passage opening (15) defining inner lateral surface (14), wherein the installation ring (11) at least one opening in the outer jacket surface has radial bore (16), to which a measuring device can be connected. The present invention also relates to a measuring probe with such a measuring device as well as the use of these measurement probe in a process for the preparation of (meth) acrylates by reacting (meth) acrylic acid with alkanols.