Flow Metering
Batch Totalizer
Batch total V = Q t and time t = V/Q.
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Flow metering calculators for orifice, venturi, unit conversion, and batch totalizing. Enter differential pressure, beta ratio, discharge coefficient, or batch volume to estimate mass and volumetric flow, corrected readings, and totalized quantities. Each meter tool exposes the Bernoulli-based equation and correction factors, linked to the metering guides for installation and straight-run checks.
Flow Metering
Batch total V = Q t and time t = V/Q.
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Two-stream mass and energy balance.
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GPM to m3/h (x0.2271) and LPM (x3.785).
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Nm3/h to actual m3/h at flowing conditions.
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Mass volume flow via density: m = rho Q.
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Orifice screening Q = C sqrt(dP/rho). Calibrate C from one known point; full ISO 5167 for custody.
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Venturi dP to flow with throat geometry.
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Open-channel weir equations side by side.
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