![]() When 90 degree angles, half-open valves, misaligned flanges, or even pipe wall pitting exist within a piping system, the fluid flowing through it is disrupted, which can cause inaccurate flow meter readings. In most cases, natural laminar flow only exists in straight-run piping. The velocity of laminar flow is highest in the center of the flow and slower as it reaches the pipe walls. Optimally, fluid with a “laminar” flow profile is moving smoothly through the pipe. But, to keep your flow meter functional as well, there are some piping requirements regarding the fluid’s flow profile, which is almost entirely dependent on a system’s piping orientation. Swirls or other distortions in the flow are caused by the tees, elbows and valves that make piping systems functional. A distorted fluid velocity profile is one of the most common reasons for inaccurate flow meter readings.
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