Venturi Flowmeter

Engineered for Stable, Continuous Measurement Across Industrial Tanks and Vessels

Our liquid level meters are designed to provide precise, repeatable measurements that support safe storage, consistent process control, and reliable fluid management. Measurement stability is maintained even as conditions shift, enabling users to make informed operational decisions and protect equipment performance.
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CE, SIL-3 & ATEX Certifications

36-Month Factory Warranty

24/7 lifetime technical support

Trusted by 5,128 Industrial Users

Factory-calibrated to ISO/IEC standards

Precision Level Measurement Within Reach

Explore Our Venturi Flowmeters

Designed for modern tank and vessel applications, these level meters combine dependable sensing with clear flow monitoring output. The product range supports consistent readings across diverse liquid phases, helping maintain operational continuity and informed decision-making.

Technical Specifications

  • Product Name: Venturi Differential Pressure Flowmeter
  • Accuracy: ± 0.5%,+/-1%, +/-1.5%
  • Flow Rate: Liquid: 0.3 ~ 10 m/s; Gas: 5 ~ 60 m/s
  • Flow Rate:0.5Mpa-42Mpa
  • Nominal diameter: DN3 – DN2600
  • Suitable Media: Liquids, gases, steam, unclean natural gas, high wet gas, dirty fluids, strong and corrosive fluids.
  • Expansion Coefficient: Meets GB/T 2624-93 standards.
  • Pressure Loss: About 1/5 of the differential pressure (1/3 of the hole plate pressure loss).
  • Reynolds Number Range: ReD ≥ 4103 (lower limit can be lower with higher uncertainty).
  • Pressure Type: Ordinary pressure and remote flange pressure types.
  • Flange Standard: National standard flange (chemical standard flange on request).
  • Outflow Coefficient Stability: Best stability compared to other differential pressure flow meters.
  • Applicable Fluids: Suitable for measuring gases with higher viscosity, dirty fluids, and corrosive liquids.
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Main performance features

Design features that deliver measurable performance in real industrial environments.

Stable Pressure Signal Control

The Venturi contour maintains a clean, predictable differential-pressure curve, supporting consistent flow measurement even as operating conditions shift.

Low Permanent Pressure Loss

Smooth acceleration and recovery zones minimize flow resistance, helping reduce energy consumption across air, gas, and process-utility systems.

Reliable Performance Over Time

Solid-state geometry and durable materials limit wear, drift, and fouling, delivering reliable performance over extended service life.

Broad Application Compatibility

The Venturi profile performs consistently across varied duct shapes and flow regimes, enabling reliable use in air, smoke, and industrial gas applications.

Predictable Flow-Response Behavior

Validated coefficients and controlled shaping deliver predictable flow relationships, strengthening confidence in both low and high velocity conditions.

High Structural Dimensional Integrity

Reinforced materials and controlled fabrication preserve critical throat geometry, protecting accuracy during thermal or mechanical stress.

Design for Harsh Industrial Realities

Every contour, angle, and surface engineered to enforce stable differential-pressure behavior.

Our Venturi flowmeter R&D program integrates flow dynamics modeling, field-condition data, and iterative structural refinement. The dual-Venturi concept, validated through wind-tunnel testing, delivers enhanced differential-pressure stability and reduced flow disturbance. With material optimization and precision fabrication, we ensure the meter maintains consistent linearity and reliable performance across demanding air, smoke, and gas applications.
  • Velocity-Profile Simulation

    We model flow contraction and expansion to achieve a stable velocity distribution at the throat, enhancing overall measurement uniformity.

  • Optimized Flow Passage Geometry

    Internal contouring and mirror polishing reduce turbulence and pressure loss, maintaining smooth flow contraction and recovery in real applications.

  • Pressure-Extraction Stability

    Positive and negative pressure pathways are designed to minimize turbulence influence and provide a clean differential signal under varying flow conditions.

  • Load-Condition Verification

    Testing across various flow rates ensures predictable signal response and preserves meter reliability under industrial fluctuations.

Built for Dimensional Accuracy and Stable Flow Behavio

Precision forming and comprehensive verification ensure Venturi reliability over time.

Our manufacturing system centers around geometric fidelity, ensuring that throat, inlet, and outlet shapes remain consistent and stable. Careful machining and surface finishing minimize turbulence and flow separation. Differential-pressure validation—performed across several flow states—confirms that each meter delivers reliable, installation-grade performance.

Verified Performance, Certified Quality

Certified to the World’s Most Demanding Industrial Standards

Our flowmeters undergo comprehensive verification under recognized global standards. With SIL-3 safety, CE conformity, and explosion-proof certification, each unit delivers dependable performance and lasting operational integrity in demanding process conditions.

  • Precision Flow Measurement Starts Here

    Discuss Your Application With Our Flow Specialists

    If your application involves specific flow conditions, media types, or installation challenges, our specialists can assess the conditions and help you choose the configuration that ensures stable, long-term performance.
    Request Technical Consultation

    Consult with flowmeter specialist

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