Orifice Plate Types Explained – A Quick Guide for Instrumentation Engineers! Orifice plates are among the most widely used primary flow elements for measuring fluid flow in industrial processes. Choosing the correct type is essential for achieving accurate measurements and reliable plant operation. This infographic explains the most common orifice plate types, including Concentric, Eccentric, Segmental, Quadrant Edge, Venturi, Nozzle, Flow Nozzle, and Annular Orifice Plates. Each design is developed for specific applications based on the process fluid, pressure, flow characteristics, and the presence of solids or gases. For example, Concentric Orifice Plates are ideal for clean liquids and gases, while Eccentric and Segmental Orifice Plates are preferred for dirty fluids, slurries, or fluids containing suspended particles. Venturi and Flow Nozzles are selected when lower pressure loss and higher accuracy are required. Understanding these differences helps engineers select the right flow measurement solution, improve process efficiency, and reduce maintenance costs. Save this guide for future reference and share it with fellow engineers. Which orifice plate type do you use most often in your plant? Let us know in the comments! Post navigation Gauge Pressure vs Absolute Pressure – Know the Difference! Heat Transfer Made Simple – Conduction, Convection & Radiation