PD vs DP Transmitters and Orifice Plates: Review Guide

Reviewer’s note: Differential-pressure-based flow measurement is still one of the most used approaches in oil & gas, chemical processing, utilities, steam systems, and water treatment. But the phrase “DP flow” often hides three very different decisions: the pressure transmitter, the differential pressure transmitter, and the primary flow element such as an orifice plate. Differential pressure […]