Understand K-Factor for Turbine Flow Measurement

K-Factor is one of the most important values in turbine flow measurement. It links the meter’s pulse output to real flow rate and total volume.

A correct K-Factor gives accurate readings, while a wrong value can create batch errors and unreliable totals.

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Understanding K-Factor for Accurate Turbine Flow Measurement

K-Factor tells you how many electrical pulses a turbine flow meter makes per unit volume of fluid. Each meter produces a certain number of pulses for each liter or gallon that passes through it. The output pulses link rotor speed to flow volume.

Every turbine gas meter has a different K-Factor. Small changes in rotor size, bearing friction, and magnetic pickup position make each meter’s K-Factor distinct.

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You calculate the flow rate by dividing the pulse frequency by the K-Factor. For example, if a meter generates 10,000 pulses per gallon and the frequency is 5,000 Hz, the flow is 0.5 gallons per second.

The K-Factor comes from calibration. The manufacturer or a certified lab passes known fluid volumes through the meter and counts pulses. That test finds how many pulses equal one unit of volume.

Fluid properties affect the K-Factor. Higher viscosity slows rotor motion, which changes how many pulses form per volume. Viscous liquids, like oils, may show a different effective K-Factor than water.

Mechanical wear also changes the K-Factor over time. Worn bearings produce extra friction. This can reduce rotor speed and change pulse output for the same flow.

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Temperature and pressure alter internal meter dimensions. These changes affect rotor motion and thus the number of pulses per unit volume.

Distorted flow profiles before the meter can skew K-Factor readings. Elbows, valves, or pumps close to the meter can create uneven flow and result in incorrect frequency signals.

Unfiltered fluid can carry debris that alters rotor balance. Deposits on blades change mass and motion, which in turn impacts the K-Factor.

Routine calibration keeps the K-Factor aligned with real conditions. Over months of use, K-Factor can drift enough to change flow totals. Recalibration resets the correct count for use in flow computers and PLCs.

Conclusion

K-Factor is central to precise turbine flow measurement. It converts electrical signals into real flow data. Every meter from Burak Metering comes with a factory-verified K-Factor. Regular calibration preserves accuracy and trust in your recorded flow.

Burak Metering is a top turbine flow meter manufacturer in India. We produce meters built for accuracy and durability in industrial and process applications.

Our team supports installation, calibration, and servicing so your flow data stays reliable.

Burak Metering products and services help you measure flow with confidence and minimize costly errors.

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