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อัปเดต 2026-09-07
Calculators — Instruments & Metering
Flow-measurement devices: orifice/nozzle/Venturi, weirs & flumes, control valves
Three ISA/ISO-governed sizing & rating tools: differential-pressure primary elements (ISO 5167), open-channel weirs/flumes (ISO 1438 / USBR WMM), and control-valve Cv sizing (ISA-75.01.01 / IEC 60534-2-1).
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