Krohne Optiflux 4300 Electromagnetic Flowmeter
Overview
The Krohne Optiflux 4300 is an advanced process electromagnetic flowmeter engineered for demanding applications involving aggressive liquids, abrasive slurries, and challenging process conditions. Covering an exceptionally wide line size range from DN2.5 to DN3000, and rated for process temperatures to +180°C and pressures to 1500 bar, the Optiflux 4300 extends electromagnetic flow measurement into custody transfer and heavy industrial duties that fall beyond the capability of standard magnetic flowmeters.
As a trusted regional supplier for Krohne, Seven Star LLC supplies the Optiflux 4300 Electromagnetic Flowmeter to refineries, petrochemical plants, and heavy process industries across the Sultanate of Oman and the wider GCC, with manufacturer documentation and local technical support.
Measurement Principle
The Krohne Optiflux 4300 applies Faraday’s law of electromagnetic induction: a magnetic field is generated across the flow tube, and as the conductive liquid moves through this field it induces a voltage proportional to its average velocity. A pair of process-rated electrodes detects this induced voltage, and the connected signal converter processes it into a standard volumetric flow output. Because the Optiflux 4300 is engineered to operate with liquids of very low conductivity, down to 1 microsiemens per centimeter, it extends electromagnetic measurement to process fluids that would be unmeasurable on conventional magnetic flowmeter designs.
This non-intrusive measurement principle means there are no moving parts to wear from abrasive solids content of up to 70%, no flow obstruction causing pressure drop, and no direct exposure of a mechanical sensing element to the aggressive chemistry of the process fluid. The result is a flowmeter platform capable of sustained accurate measurement on media and at pressures that would rapidly degrade turbine, vortex, or positive-displacement meters.
Engineering Design of the Krohne Optiflux 4300
The Optiflux 4300 is available in compact (C), wall-mount (W), field-mount (F), and rack-mount (R) design variants, giving engineers flexibility in how the sensor and converter are physically arranged on a process skid or in a control room. Liner options include PTFE, PFA, ETFE, hard rubber, soft rubber, and polyurethane, each selected to match the chemical resistance and abrasion demands of a specific duty, while flange ratings up to PN40 or ASME Class 600 accommodate a broad range of piping standards, with higher ratings available on request.
Measurement accuracy of ±0.2% of reading or ±1 mm/s, whichever is greater, is certified for custody transfer applications under OIML R49 and R117, and the flowmeter supports MID MI-001, MI-004, and MI-005 approvals for regulated metering. Output options include three 4-20 mA signals along with HART, Modbus, FOUNDATION Fieldbus, PROFIBUS PA/DP, and PROFINET, and the instrument is available with ATEX, IECEx, NEPSI, FM, CSA, EAC, and INMETRO hazardous-area certifications for global project compliance.
Key Features
The Krohne Optiflux 4300 combines wide-envelope process capability with certified accuracy for the most demanding electromagnetic flow measurement duties:
- Covers line sizes from DN2.5 to DN3000, one of the widest ranges available in an electromagnetic flowmeter platform.
- Handles process temperatures to +180°C and pressures to 1500 bar, well beyond standard magnetic flowmeter ratings.
- Measures liquids with conductivity as low as 1 microsiemens per centimeter, extending electromagnetic measurement to difficult process fluids.
- Tolerates solids content up to 70%, suiting heavy slurries and abrasive process streams.
- Accuracy of ±0.2% of reading or ±1 mm/s is certified for custody transfer under OIML R49 and R117.
- Available in compact, wall-mount, field-mount, and rack-mount configurations to fit varied installation layouts.
- Supports HART, Modbus, FOUNDATION Fieldbus, PROFIBUS PA/DP, and PROFINET for integration into modern and legacy control systems.
- Global hazardous-area certifications including ATEX, IECEx, NEPSI, FM, CSA, EAC, and INMETRO support international project specifications.
Industrial Applications
The Krohne Optiflux 4300 is widely applied in refinery and petrochemical process units handling aggressive chemicals, custody transfer metering of high-value liquid products, mining and mineral processing slurry lines, and heavy industrial wastewater treatment involving abrasive or corrosive media. Its wide temperature and pressure envelope also makes it suitable for district cooling energy transfer stations and RO desalination process trains operating at elevated pressures across the region.
As the trusted supplier for Krohne, Seven Star LLC supplies the Optiflux 4300 to oil and gas operators, petrochemical complexes, mining companies, and heavy industrial plants throughout Oman, including projects supported from the Sohar and Salalah economic zones, as well as broader GCC markets, with application engineering support for liner and flange selection.
Technical Specifications
The table below summarizes the principal specifications of the Krohne Optiflux 4300 Electromagnetic Flowmeter, confirming why the Krohne Optiflux 4300 is specified on demanding process duties.
| Parameter | Specification |
|---|---|
| Model | Krohne Optiflux 4300 |
| Line Size Range | DN2.5 to DN3000 (1/10 in to 120 in) |
| Process Temperature | Up to +180°C (+356°F) |
| Maximum Pressure | Up to 1500 bar |
| Accuracy | ±0.2% of reading or ±1 mm/s (custody transfer certified) |
| Minimum Conductivity | 1 µS/cm |
| Solids Content Tolerance | Up to 70% |
| Liner Materials | PTFE, PFA, ETFE, hard rubber, soft rubber, polyurethane |
| Flange Rating | Up to PN40 / ASME Class 600 (higher on request) |
| Communication | HART, Modbus, FOUNDATION Fieldbus, PROFIBUS PA/DP, PROFINET |
| Approvals | OIML R49, R117; MID MI-001/004/005; ATEX, IECEx, NEPSI, FM, CSA, EAC, INMETRO |
Request a Quote for Krohne Optiflux 4300
Seven Star LLC invites refineries, petrochemical plants, and heavy industrial operators across Oman and the GCC to submit a formal request for quotation for the Krohne Optiflux 4300 Electromagnetic Flowmeter. In Oman and the GCC, Seven Star LLC supplies common configurations on request, provides the manufacturer technical datasheet on request, and connects customers directly with our instrumentation division for liner and flange selection support. Contact Seven Star LLC today to receive a competitive quotation with current lead time and local technical support. The Krohne Optiflux 4300 is supplied on request, with lead time confirmed at quotation.
Browse the full KROHNE range or see more Flowmeters products supplied by Seven Star LLC in Oman and the GCC.
- datasheet Krohne Optiflux 4300 Datasheet Download
KROHNE product families on this page
KROHNE names its instruments by measuring principle, which makes a tag list easy to read:- OPTIFLUX and WATERFLUX: electromagnetic flowmeters, such as OPTIFLUX 2300, OPTIFLUX 4300 and WATERFLUX 3070 for water networks
- OPTISONIC and ALTOSONIC: ultrasonic flowmeters, including the inline OPTISONIC 3400, the clamp-on OPTISONIC 6300, the OPTISONIC 7300 for gas and the ALTOSONIC V12 for custody transfer of gas
- OPTIMASS: Coriolis mass flowmeters such as OPTIMASS 1400 and 6400
- H250 M40 and DK800: variable area flowmeters
- OPTIWAVE and OPTIFLEX: radar and guided radar level transmitters
Where KROHNE flowmeters and level transmitters are used
Typical duties in the GCC are produced water and injection water metering, potable water and wastewater networks, fuel gas and sales gas measurement, chemical dosing, and tank level in terminals and process units. Coriolis meters cover mass flow and density on hydrocarbons, while electromagnetic meters need a conductive liquid.Ordering KROHNE instruments: what we need
Send the full type code and serial number from the nameplate, or a clear photo of it. For a new KROHNE flow meter we need line size and flange rating, liner and electrode material for electromagnetic types, fluid, flow range, pressure and temperature, power supply, output and protocol, and the hazardous area approval required. We check the code against KROHNE documentation before quoting and provide the manufacturer's datasheet and certificates on request.Browse KROHNE products by category: Flowmeters, Level Transmitter, Flow Computers.
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