The industry’s most accurate and reliable flow meters


We maintain the industry's largest team of in-house hydraulic engineers to test, analyze, and calibrate our meters to deliver the verifiable accuracy that our customers require.  With accuracy performance margins of +/-0.25% lab calibrated and +/-0.5% bench calibrated, and years of accumulated performance verification, we stand by our products.


With no moving parts and precision manufacture, our Halmi Venturi HVT flow primaries regularly achieve decades of reliable service.  Relying on the Bernoulli principle, our engineers have finely calibrated our meters measure pressure differentials of fluids through simple sensors and special geometry. 

This elegance of the differential design means that there is little opportunity for system malfunction. This achievement is evidenced by our exemplary record of reliability as the largest supplier of Venturi flow meters to the industry.


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16.0 Inch HT-PI Flow Primary

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HVT-PI Flow Meters