Dredgers in the marine industry

Monitoring of dredging vessels

  • Flowmeters for dredging slurries
  • Electronic fuel consumption monitoring and management
  • Ballast water monitoring
Blue dredger discharding

A dredger is a watercraft that has special equipment for dredging ports, estuaries or bays. The two most successful dredging vessel designs are the cutter suction dredgers (CSD) and trailing suction hopper dredgers (TSHD). Both use large pumps and suction pipes to move the slurry mixture into and out of storage tanks on-board. In most cases operators need to document how much material they have moved. The slurry is highly abrasive and production speed often high, which requires heavy duty instruments.

Over many years KROHNE has gained considerable experience in providing electromagnetic flowmeters for dredging applications. OPTIFLUX 4000, with velocity calibration is the preferred flow meter for this duty. The meters are obstructionless, full bore in design, with abrasion resistant liners, and carry most of the relevant marine type approvals (such as DNV-GL, KR, BV).

The KROHNE EcoMATE™ system and Coriolis mass flowmeters offer electronic fuel management solutions that enable the crew and ship owner to keep track of and report on both fuel consumption and all corresponding emissions, in accordance with the new regulations from the EU and the International Maritime Organization (IMO). EcoMATE™ also allows separate monitoring of any bunkering operations.

KROHNE also manufacture a wide range of electromagnetic flowmeters suitable for other flow instrumentation on board, such as in ballast water treatment systems, exhaust gas cleaners (scrubbers) water/oil separators or fresh water production systems.

Processes related to Dredgers in the Marine industry

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Products for the Marine industry

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Solutions for the Marine industry

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Services for the Marine industry

Throughout the last 60 years, KROHNE Marine has developed an extensive range of unique measuring solutions to meet the current and future requirements of our customers in the marine market. We can tailor each individual solution for specific vessel types and operational challenges, integrating separate systems into a unified solution to ease day-to-day performance and long-term asset management. Our offer includes dedicated research and development, engineering and system design, project management, commissioning and service.

  • Complete engineering and project management
  • Full turn key solution
  • Commissioning
  • Dedicated in-house research and development department
  • Service, support and provide quality system and product training

Applications from the Marine industry

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KROHNE Global Industry Division Marine

Headquartered in Brevik, Norway, our Global Industry Division Marine handles all marine-related activities within the KROHNE Group. This includes sales and marketing, engineering and system design, research and development, after sales service and spare parts. Our highly knowledgeable team is always up to date with the newest technology, legislation and shipboard installations.

The marine market is a global market without borders. More than 60 years in the marine business mean KROHNE Marine knows what it takes to deliver high-quality products to demanding ship operators and shipyards anywhere in the world. An exclusive network of sales representatives and service agents represent KROHNE Marine in all the main global shipping hubs and shipbuilding countries.

An increasing number of harbor authorities, governments and marine regulations require an ISO 14001 or similar certification. Even when it is not a formal requirement, it is of interest to ship owners and partners how we care for the environment. The benefit for the ship-owner is to show their customers, the communities and shareholders that they focus on using reliable, traceable, sustainable, and future-oriented partners in their operations.

We are therefore happy to announce that KROHNE Marine Norway is certified according to both ISO 9001 and ISO 14001. The certification gives a clear signal that KROHNE is committed to honor its environmental commitments and environmental policy requirements.

Global Industry Division Logo KROHNE Marine


Strømtangveien 21
3950 Brevik

Phone: +47 35 56 12 20
Email: marine@krohne.com