Forbes Marshall - Trusted Partners in Steam Engineering & Control Instrumentation
Forbes Marshall - Trusted Partners in Steam Engineering & Control Instrumentation
This is a product of Krohne Marshall. Krohne Marshall's range of products is available for India and Indian subcontinent only. Krohne Marshall is a joint venture between Forbes Marshall, India and Krohne, Germany.

OPTISONIC 3400

The OPTISONIC 3400 is an incredibly versatile 3-path inline ultrasonic flowmeter designed for the continuous flow measurement of liquids across virtually all industrial process applications. From cryogenic fluids to high-temperature hydrocarbons and highly viscous media, this flowmeter offers an unmatched operational bandwidth, making it a foundational instrument for complex process plants.

With its full-bore design, the device guarantees zero pressure loss and demands no maintenance. Fully equipped with advanced diagnostics and certified for safety instrumented systems (SIL 2), the OPTISONIC 3400 provides plant operators with total peace of mind, improved process optimization, and exceptional long-term accuracy under both standard and harsh operating conditions.

Key Applications of OPTISONIC 3400:

  • Oil & gas pipeline metering, allocation, and leak detection.

  • Chemical processing (corrosive, abrasive, and viscous chemicals).

  • Liquefied Natural Gas (LNG) and cryogenic liquid measurement.

  • De-ionised, demineralised, or cooling water measurement.

  • Accurate 3-path ultrasonic measurement designed for a massive dynamic range.

  • Full-bore, bi-directional design with no flow restrictions or moving parts.

  • Extensive material options including carbon steel and stainless steel.

  • Cryogenic (-200°C), extended temperature (+250°C), and high-viscosity variants available.

  • Advanced self-diagnostics and Safety Instrumented Systems (SIL 2) certification.

  • Available in compact (C) or field (F) housing configurations.

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