Accurate water measurement underpins billing, compliance, and conservation.
Water utilities bill millions of customers based on metered consumption. Municipal authorities track network losses. Regulators require verified measurement to enforce environmental and trade standards. In every case, the accuracy of the flow meter at the point of measurement determines the reliability of the outcome.
Calibrating water meters requires a certified volumetric reference that can handle large volumes under pressure, with appropriate materials for potable or industrial water. Lonetti manufactures prover tanks and test measures in 304 stainless steel — hygienic, corrosion-resistant, and certified to OIML R117.
From a 5-liter handheld test measure for field inspection of household meters to a 5,000-liter prover tank for bulk transfer verification, Lonetti builds the reference standard to your specification.
What operators in this industry need to solve.
Bulk transfer verification
Verify the accuracy of large-diameter water meters at pump stations, treatment plants, and inter-utility transfer points.
Retail meter inspection
Field inspection of domestic and commercial water meters by weights & measures inspectors using portable test measures.
Non-revenue water analysis
Calibrate the reference meters used in network balance calculations to quantify losses and improve distribution efficiency.
Regulatory compliance
Demonstrate meter accuracy to national regulators and certification bodies as required by utility operating licenses.
Equipment specified in this vertical.
Precision Test Measures & Calibration Cans
Handheld volumetric reference cans from 1L to 50L — for verifying fuel dispensers, retail pumps, and small meters in the field.
Custom Stainless Steel Prover Tanks
Volumetric reference vessels from 50L to 5,000L+, built in 304 SS to OIML R117 and API MPMS Ch.
Custom Liquid Calibration Test Benches
Fixed and mobile test benches for meter verification — flow loop, reference standard, control panel, and instrumentation engineered around your meter portfolio.
The regulations Lonetti equipment is built to satisfy.
Specific use cases in this industry.
Pump station bulk metering
Large prover tanks for verifying electromagnetic and ultrasonic bulk meters at treatment plant inlets and outlets.
Field inspector kits
Portable 5L–50L test measure sets for municipal inspectors verifying commercial and industrial meter accuracy.
Meter shop calibration
Fixed test benches for workshop-based meter verification before new installations and after maintenance.
Irrigation and agriculture
Calibration of flow meters on agricultural water allocations and irrigation canal metering.
Inter-utility transfer
Large-capacity prover tanks for custody transfer of bulk water between utilities and wholesale customers.
Environmental monitoring
Traceable reference standards for calibrating effluent and river flow meters used in regulatory reporting.
Common questions.
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