/community-hubs/measurement-instrumentation/b/level-weblog/posts/using-flushing-drip-calibration-rings-in-pressure-and-level-measurementsIf you work with pressure measurement instrumentation, you may have heard the phrases drip rings, flushing rings or calibration rings. These are used for pressure and differential pressure (DP) level measurement devices where diaphragm seals are useden-USTelligent Community 13