Variable Frequency Resonant Two Phase Flow Meter for Gas-Liquid, Gas-Gas and Oil-Water Measurement

Procurement of a flow meter for two-phase mixture measurement is a critical quality decision.

Although Instrava is not a manufacturer, we act as a supplier that prioritizes your interests, helping you select the most suitable products.

Leveraging China’s vast market resources, we carefully select high-quality manufacturers to provide you with off-the-shelf products or customized solutions tailored to your project requirements.

Our products are marketed globally and comply with relevant international certification standards, including CE, IECEx, UL, TÜV, and NEL.

Quotation timelines depend on your specific product requirements. We provide quotes for off-the-shelf products within 1–2 days; special requirements necessitate detailed consultation prior to quoting.

Off-the-shelf products are shipped within 3–5 days, while delivery schedules for customized products or large-volume orders are determined through separate negotiation.

Deskripsi Pengukur Aliran  

Variable Frequency Resonant Two-Phase Flow Meter is a high-end industrial measuring instrument specifically designed to measure two-phase flows (such as gas-liquid mixtures, oil-water mixtures, or gas-gas mixtures).

The variable-frequency resonant two-phase flow meter employs a resonant design to measure the mixture density of the medium by detecting changes in the resonant frequency. By incorporating the pressure loss resulting from the throttling effect, the total flow rate can be determined.
Since the mixture density of a two-phase fluid depends on the operating densities and phase fractions of the gas and liquid (water or oil) phases, the phase fraction of each component can be derived once their operating densities are known; the corresponding two-phase flow rates are then calculated using the Bernoulli equation.

This flow meter supports the following two measurement modes:

Gas-Liquid and Gas-Gas Modes: For gas-containing mixed fluids, the operating density of the gas phase (with known composition) is calculated using pressure and temperature measurements combined with the PVT equation, while the operating density of the liquid phase is determined using phase fraction information derived from resonant frequency changes.

Oil-Water Mode: For oil-water mixtures with known compositions, phase fraction information obtained from resonant frequency changes is used to determine the mixture density, which in turn allows for the calculation of the individual densities of the two phases.

By combining the mixture density with fluid dynamic calculation models, the liquid-phase mass fraction and average pressure of the mixed medium within the flow meter’s measuring tube are determined. Subsequently, the flow calculation module adjusts the total mass flow rate based on the liquid-phase mass fraction, average pressure, and medium temperature to obtain the final total mass flow rate, from which the individual mass flow rates of the gas and liquid phases are calculated.

Aerial wide shot of large-scale petrochemical refinery plant at sunset sky, with distillation towers, storage tanks, dense process pipeline network and steam emission, Instrava industrial measurement & control instrumentation application scenario for oil & gas refining industry
Offshore oil & gas production platform standing on open sea at sunset, Instrava industrial flow, pressure and level measurement instruments application scene for marine offshore energy exploitation industry

Variable Frequency Resonant Two-Phase Flow Meter Product Features

High Precision and Robust Adaptability (Multiphase Flow Expert)
With no internal moving parts, the device offers exceptional resistance to contamination and wear. Specifically designed for two-phase flow measurement (e.g., oil-water, gas-liquid, liquid-liquid, gas-gas), it is perfectly suited for demanding industrial environments such as petroleum, chemical processing, bioengineering, CCUS (Carbon Capture, Utilization, and Storage), and environmental protection.

Digital & Intelligent Remote Management (Efficient Automation)
Features built-in intelligent monitoring and remote communication modules, supporting real-time data uploading and cloud-based monitoring. It significantly boosts production management efficiency, enabling enterprises to achieve unmanned operations and comprehensive automation.

User-Friendly Customization (Flexible and Easy to Use)
Supports one-touch conversion between multiple measurement units to meet global or custom standards; offers optional split-system or remote large-screen displays for intuitive and convenient data reading.

Compact, Safe, and Reliable
Utilizes a compact structural design optimized for horizontal installation. It ensures absolute operational safety while significantly minimizing the installation footprint.

Cost-Effective with Uninterrupted Data
Features a minimalist structure and low maintenance costs while delivering continuous, real-time, high-frequency flow data—making it an ideal, cost-effective choice for industrial measurement.

Parameter Pengukur Aliran  

Product DescriptionApplication in two-phase media management and metering Communication methods RS485, RJ45, 4G IoT SIM card (customizable upon request)  
Specifications and dimensions  DN15~DN80 Power supply method DC24V/AC220V (customizable according to customer requirements)  
Design pressure ≤16MPaRated power   <5W 
medium temperature-40℃~100℃Peringkat tahan ledakan  Ex db IIB T4 Gb
Suhu lingkungan-40℃~+85℃Tingkat perlindungan  IP65  
Kelembaban sekitar(0~95)%RHInstallation method  Horizontal installation 
Scope of applicationLVF>80%, <20%Mass flow rate (gas, liquid)±3.5%
Equipment weight (20~105)kgFlow rangeRefer to the “Multiphase Flowmeter Flow Range Comparison Table”  
Throttling deviceVariable diameter straight tube multi-tube bundled flow guideBahan304、316、316L
Standar FlensaHG20592-20615/ASME B16.5/API 6A/Gost 33259 (Customized according to customer requirements) 

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Level gauge, flowmeter, transmitter, level switch, Gas Alarm Controllers etc.

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