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SZSHIZHONGFlow Instruments

Patented multi-hole venturi technology

Bore-Venturi Balanced Flow MetersPatented DP Flow Meter

Eight bore-venturi holes with an integrated central cone — combining balanced flow conditioning with venturi pressure recovery for high accuracy and low pressure loss.

Bore-Venturi Balanced Flow Meters stainless-steel pipe cross-sectionBore-Venturi Balanced Flow Meters

Engineered for the service

Per ISO 5167-1:2022 principles, the Bore-Venturi Balanced Flow Meter is Shizhong's flagship innovation. Each of the eight holes incorporates a micro-venturi profile (convergent → throat → diffuser), complemented by a central cone that provides flow conditioning. CFD-validated across 63+ operating points, the design achieves Cd values of 0.80–0.92 — significantly higher than standard balanced plates (0.62–0.75) and approaching short-form venturi performance.

Key design features

8 bore-venturi holes + central cone architecture
Cd 0.80–0.92 — 30–50% higher than standard orifice plates
CFD validated across 63+ operating points (publicly documented)
Integrated flow conditioning reduces straight-run requirements
Pressure loss 40–60% lower than standard orifice plates

Typical applications

01

Natural gas custody transfer

02

Steam distribution networks

03

Refinery process lines

04

Compressed air and industrial gases

Final specifications are confirmed against process data, piping, material, pressure class, applicable code and metrology requirements.

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ISO 9001TS Licensed30+ PatentsSince 1989
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