3051SFA Annubar Volume Flow Meter – High-Accuracy Differential Pressure Flow Measurement for Liquids, Gases, and Steam

3051SFA Annubar Volume Flow Meter – High-Accuracy Differential Pressure Flow Measurement for Liquids, Gases, and Steam

The Rosemount 3051SFA Annubar Volume Flow Meter delivers high-accuracy differential pressure flow measurement for liquids, gases, and steam. Featuring Emerson’s patented averaging pitot tube technology, it minimizes permanent pressure loss while providing reliable, repeatable results across a wide range of applications. With integrated pressure and temperature sensors, the 3051SFA enables direct calculation of mass and volume flow, reducing installation complexity and improving process efficiency. Its robust design, advanced diagnostics, and multiple communication protocols make it ideal for critical industrial environments such as power generation, chemical processing, and oil & gas.

Applications

The Rosemount 3051SFA Annubar Volume Flow Meter is engineered for reliable and accurate flow measurement across a wide range of industrial processes. Typical applications include:

1. Steam Measurement – High-accuracy monitoring of saturated and superheated steam in power generation, district heating, and process industries.
2. Gas Flow Monitoring – Measurement of natural gas, compressed air, and other industrial gases for energy management and process optimization.
3. Liquid Flow Measurement – Accurate volume flow of water, condensate, and process liquids in pipelines and distribution networks.
4. Energy and Utility Management – Integrated mass and energy flow calculations for cost allocation, efficiency tracking, and system balancing.
5. Custody Transfer and Compliance – Suitable for applications requiring traceable, repeatable, and auditable flow measurement.
6. Retrofit and Large-Diameter Pipelines – Insertion-style Annubar design minimizes installation costs and pressure loss, making it ideal for upgrades and large-scale systems.

Frequently Asked Questions (FAQ)

Q1: What is the Rosemount 3051SFA Annubar Volume Flow Meter?
A: It is a high-accuracy differential pressure flow meter that uses Emerson’s patented Annubar averaging pitot tube technology to measure the volume flow of liquids, gases, and steam.

Q2: What makes the 3051SFA different from traditional differential pressure flow meters?
A: Unlike orifice plates or Venturi tubes, the Annubar design minimizes permanent pressure loss, reduces installation costs, and provides multi-variable measurement (pressure, temperature, mass flow, and energy flow).

Q3: What types of media can it measure?
A: The 3051SFA is suitable for steam, natural gas, compressed air, and a wide range of liquids in industrial pipelines.

Q4: What is the accuracy of the 3051SFA?
A: It offers up to ±0.75% of flow rate accuracy with a turndown ratio of up to 200:1, making it highly reliable for critical applications.

Q5: What communication protocols are supported?
A: The device supports HART, WirelessHART, FOUNDATION Fieldbus, and other industry-standard protocols for seamless integration into process control systems.

Q6: Where is the 3051SFA typically used?
A: Common applications include power generation (steam metering), oil & gas (natural gas pipelines), chemical processing, and utility management for energy efficiency.

Q7: Does the 3051SFA provide both volume and mass flow?
A: Yes. With integrated pressure and temperature sensors, it can calculate both volume flow and mass flow, as well as energy flow.

Q8: How does installation compare to other flow meters?
A: The insertion-style Annubar design simplifies installation, especially in large-diameter pipelines, and reduces downtime compared to traditional primary elements.