KNOWLEDGE CENTER
Selection methodology, installation best practices, standards interpretation, and calculation tutorials from our application engineering team.
Navigate all six parts of ISO 5167:2022 with a step-by-step selection decision tree. From orifice plates to wedge meters — know which part applies, when calibration is required, and what changed in 2022.
Read articleCrude oil, natural gas, steam, and cooling water each push DP meters to different limits. Learn which technology fits each fluid — from wedge meters for heavy crude to Venturi tubes for cooling-water energy savings.
Read articleChoosing the right differential-pressure primary element requires evaluating fluid properties, operating conditions, piping constraints, accuracy needs, and pressure-loss budget together — not in isolation.
Read articleBeta ratio (β) determines the trade-off between signal strength and pressure loss. Learn how ISO 5167-2 limits β to 0.20–0.75 and what happens outside that range.
Read articleA head-to-head comparison of discharge coefficient, permanent pressure loss, turndown ratio, straight-run requirements, and cost across three DP flow meter families.
Read articleEvery DP primary element creates permanent pressure loss. Over a 10-year service life, the pumping cost of that loss can exceed the meter's purchase price. Here's how to calculate it.
Read articleA practical guide to all six parts of ISO 5167:2022, from general requirements and orifice plates to cone and wedge meters.
Read articleInsufficient straight-run is the #1 cause of DP flow meter inaccuracy in the field. Learn the ISO 5167 requirements and how conditioning elements can reduce them.
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