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Oil & Gas: Fuel for thought

We reduce complexities to help you perform, comply and thrive in the Oil & Gas industry

Maximizing plant availability, safety, and operational efficiency are among the top priorities in today’s oil and gas industry. As complexity grows due to volatile market forces, stringent international regulations, and limited resources, precision and reliability become non-negotiable.

At SEMAC, we understand these challenges. That’s why we offer a comprehensive portfolio of reliable instrumentation, backed by deep industry expertise and tailored automation solutions. Our approach ensures accurate monitoring of critical process parameters, helping you achieve optimal plant performance.

SEMAC Automation is your trusted partner in navigating industry demands—delivering smart, scalable, and safe solutions for the oil and gas sector.

VA40 - VA45 - Krohne variable area flowmeter

• Local indicator without auxiliary power
• Optionally available with limit switches or electrical signal output
• Visual product check (e.g. free from bubbles, colour

VA40 - VA45 - Krohne variable area flowmeter

OPTIFLUX 4000 - Krohne electromagnetic flow sensor

• Robust, fully welded construction for industrial process applications
• For demanding applications including corrosive, abrasive and high pressure
• Engineered constructions for customer specific solutions

OPTIFLUX 4000 - Krohne electromagnetic flow sensor

OPTIMASS 1000 - Krohne sensor for mass flow

• First choice for universal applications
• Best price-performance ratio
• A wide range of options available with no restrictions

OPTIMASS 1000 - Krohne sensor for mass flow

OPTIMASS 2400 - Krohne sensor for mass flow

• Large diameter for bulk measurement and custody transfer of liquids and gases
• Stainless Steel measuring tubes (NACE compliant)
• Super Duplex option offering a maximum operating pressure of 180 barg

OPTIMASS 2400 - Krohne sensor for mass flow

OPTIMASS 7400 - Krohne Coriolis mass flowmeter for advanced process applications

• High accuracy (±0.1%), for viscous, aggressive or shear-sensitive media; maintains operation over a wide range of gas fractions and complex flow conditions (EGM™)
• CT: OIML R117, MI-005; API; hygienic certifications
• Flange: DN10…100 / ½…4", max. PN100 / ASME Cl 600; others
• 3 x 4…20 mA, HART®7, Modbus, FF, Profibus-PA/DP, PROFINET, EtherNet/IP™, Bluetooth®

OPTIMASS 7400 - Krohne Coriolis mass flowmeter for advanced process applications

OPTISONIC 3400 - Krohne multi purpose, all-round, ultrasonic flowmeter for liquids

• Measurement of (non-) conductive, low and high viscous liquids, media temperature: -200°C to +250°C
• Accurate bi-directional measurement starting from a zero flow
• Advanced signal converter, with all I/O's and communication protocols

OPTISONIC 3400 - Krohne multi purpose, all-round, ultrasonic flowmeter for liquids

OPTISONIC 4400 - Krohne ultrasonic liquid flowmeter for high temperature and high pressure

• Accurate and repeatable measurement; long lasting and robust industrial design
• Efficient foil wave guide technology
• Dual, parallel acoustic paths

OPTISONIC 4400 - Krohne ultrasonic liquid flowmeter for high temperature and high pressure

OPTISONIC 6300 - Krohne ultrasonic clamp-on flowmeter

• Robust industrial clamp-on construction
• Immediate start-up
• All in one concept

OPTISONIC 6300 - Krohne ultrasonic clamp-on flowmeter

OPTISONIC 6300 - Krohne ultrasonic clamp-on flowmeter for liquids

• Robust sensor rail design for accurate and easy installation
• Advanced diagnostics for verified operation
• Factory calibrated sensors for optimal start-up and performance

OPTISONIC 6300 - Krohne ultrasonic clamp-on flowmeter for liquids

ALTOSONIC 5 - Krohne ultrasonic liquid flowmeter for custody transfer

• Suitable for all flow regimes, no Reynolds limitation
• Integrated full pipe detection
• Significant easier small volume proving

ALTOSONIC 5 - Krohne ultrasonic liquid flowmeter for custody transfer

ALTOSONIC V12 - Krohne ultrasonic gas flowmeter for custody transfer

Ultrasonic gas flowmeter for custody transfer

ALTOSONIC V12 - Krohne ultrasonic gas flowmeter for custody transfer

DK32 - DK34 - DK37 - Krohne variable area flowmeters

Variable area flowmeters
• Local measurement, setting and monitoring of very low flow rates
• Compact design, no inlet and outlet sections
• High resistance to pressure and temperature

DK32 - DK34 - DK37 - Krohne variable area flowmeters

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