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Danfoss

Drives for marine pumps and separators

Reduce power consumption in marine pumping

VLT® and VACON® drives control your pumps to match actual process need, leading to reduced energy consumption. Reducing the speed by 20% reduces the power consumption by 50%.

As well as saving energy, these AC drives also protect the pump in many different marine applications. You maintain reliable operation thanks to pump-dedicated features include built-in PID controllers, dry pump detection, flying start, sleep mode, cascade control, end of curve, and flow compensation. 

Find the right drive for your application, by answering a few simple questions.

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Due to increasingly stringent exhaust emission limits, scrubbers are frequently installed. They act as SOx abatement devices on the main and auxiliary engines and boilers, using water as a medium for sulfur absorption. Optimization of water pumps for these scrubbers is the ideal task for VLT® and VACON® drives.

Other typical application areas where drives add value to pumping operations: ballast water, bilge water, circulation, cargo, firefighting, feeding pumps, lubrication, and sea water pumping.

Improve reliability and protection of marine separators

VLT® and VACON® control enables reliable operation of bilge water, fuel conditioning and oil centrifuge separators. The AC drive ensures smooth acceleration that protects both the gearbox and high-speed bowl bearings.

Control by the AC drive provides tolerance against discharge shock loads. In the event of power failure the drive can catch the spinning separator on the fly, and brake it without needing resistors.

Danfoss Drives’ solutions for the marine and off-shore industry have the highest number of class type approvals from nine authorities: DNV-GL, ABS, Bureau Veritas, Korean Register, CCS, RINA, Lloyds Register, RMRS and Class NK.

This gives you the best possible choice when selecting drives for your marine application.

NORDEN A/S oil tanker saves energy on seawater pumps

By using VLT® drives to adapt the flow rate from seawater cooling pumps to the actual cooling demand, the company has significantly reduced its energy consumption.

Read case study

Products

iC7-Marine liquid-cooled drive from Danfoss
iC7-Marine

Enter a new dimension of opportunities with this ultra-compact drive. As well as high power density, iC7-Marine gives you a powerful combination of intelligence and shaft performance, ready for the most challenging of applications.

VACON® NXP Air Cooled
VACON® NXP Air Cooled

Designed for a broad range of demanding applications, focusing on higher power sizes and system drives.

VLT® AQUA Drive FC 202
VLT® AQUA Drive FC 202

VLT® AQUA Drive FC 202 controls all types of pumps and comes equipped with a cascade controller.

VACON® 100 INDUSTRIAL
VACON® 100 INDUSTRIAL

Drive modules and enclosed drives that are easily integrated into all major control systems.

VACON® 100 FLOW
VACON® 100 FLOW

Dedicated functionality that improves flow control and saves energy in industrial pump and fan applications.

VLT® AutomationDrive FC 301 / FC 302
VLT® AutomationDrive FC 301 / FC 302

The VLT® AutomationDrive FC 301 / FC 302 is designed for variable speed control of all asynchronous motors and permanent magnet motors. It comes in a standard version (FC 301) and an advanced high dynamic version (FC 302) with additional functionalities.

Case stories
Royal IHC Scheldt River pioneers new environmental standards in dredging with flexible MV drives

A Danfoss medium-voltage drive solution boosts an inboard dredge pump and increases energy efficiency with a small footprint, minimum weight and low volume - while being robust enough to withstand the harsh marine environment.

2 month ROI for FAYARD A/S shipyard
2 month ROI for FAYARD A/S shipyard

Electric shore supply system using VACON® NXP Air Cooled drives meets peak demands while minimizing baseline power consumption.

Accurate control of CT Offshore’s ROV trencher
Accurate control of CT Offshore’s ROV trencher

VLT® AutomationDrive FC 302 and VLT® Soft Starter MCD 500 provide quick and accurate control of high- and low-pressure seawater pumps on the remotely operated trencher laying HVAC subsea cables.

VLT® expertise saves time and energy
VLT® expertise saves time and energy

Using Danfoss VLT® drives in the seawater cooling and air-conditioning systems reduces energy consumption on board M/V Island Performer.

M/V Fugløyhav secures best price for its catch
M/V Fugløyhav secures best price for its catch

VLT® AutomationDrives and VLT® HVAC Drives are used with pumps, compressors, thrusters and steering gear to help this modern fishing vessel save energy and secure the best price for its catch.

$500,000 annual energy savings for D/S Norden A/S
$500,000 annual energy savings for D/S Norden A/S

By using VLT® AC drives to adapt the flow rate from seawater cooling pumps to the actual cooling demand, the company has significantly reduced its energy consumption.

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