KNOWLEDGE CENTER
Selection methodology, installation best practices, standards interpretation, and calculation tutorials from our application engineering team.
Why a 0.1% gas metering error costs $1.92M/year. The AGA3 four-part framework, AGA8 compressibility (detailed vs. gross), ISO 5167 vs. AGA3 differences, custody-transfer specification in 8 dimensions, and gas impulse-line design for hydrate prevention.
Read articleWhen 4.2D of straight run must substitute for 34D. Tube-bundle, Zanker, and vane conditioners compared: swirl removal, profile shaping, pressure loss, fouling resistance, and when a conditioner cannot help (control valves, pulsations, two-phase flow).
Read articleWhy steam is the hardest fluid to meter accurately. IF-97 density, saturated vs. superheated, wetness correction, condensate pot design, impulse-line heat tracing, and P&T compensation — with an 8-point pre-commissioning checklist.
Read articleISO 17025 traceability chains, wet vs. dry calibration, master-meter methods, and the nine elements every calibration certificate must contain. Plus: the five calibration mistakes that break traceability before the meter is installed.
Read articleOne measures flow (ISO 5167-2). The other reduces pressure. Same geometry, opposite purpose — and confusing the two causes 30% measurement errors. Single-stage, multi-stage, and combined-function sizing guide.
Read articleConcentric, eccentric, and segmental orifice plates explained. The Reader-Harris/Gallagher Cd equation, β selection from 0.10–0.75, corner/flange/D-D/2 tap types, ISO 5167-2 installation tolerances, and inspection schedules — the definitive orifice plate reference.
Read articleThe only ISO 5167 element with 3D straight-run capability. How V-Cone meters self-condition flow, the β=√(1−dc²/D²) formula, ISO 5167-5 parameters, and offshore/refinery/wet-gas application cases.
Read articleThe six most costly DP meter installation mistakes — reversed plates (±22%), protruding gaskets (±5%), eccentric mounting (−4.2%), wrong taps, blocked impulse lines, and short straight runs — with error magnitudes, diagnostic signatures, and step-by-step fixes.
Read articleThe only ISO 5167 element with a ReD floor of 500. How wedge meters handle heavy crude, slurries, and high-viscosity fluids where orifice plates, Venturi tubes, and cone meters fail — with three real-world case studies.
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