Wärtsilä Svanehøj Deepwell Cargo Handling Systems

For safely offloading a wide range of liquid cargoes, we offer the most flexible and environmentally sound solutions.

Our high quality deepwell cargo pump systems are powered by quiet, efficient electric drives that are fast and easy to install.

We specialise in competitively priced full cargo and ballast systems including drive systems, switchboards and accessories.

Around the world, we create custom-made turnkey solutions for any tanker, with full project management from start to safe on-time delivery and installation.


    Because the needs of tankers and their cargoes are so diverse, Wärtsilä delivers the widest range of tailored pump solutions, delivering savings through lower CAPEx before OPEX costs. 

    We are unique in supplying both centralised pump room systems and systems distributed around the vessel. Together, they enable us to deliver an optimum solution for any and every vessel, from small coastal tankers to 320,000 dwt+ VLCCs. As the largest supplier of compact, energy-efficient electric pump systems, we can deliver efficiency savings of 11-17% compared with hydraulic alternatives, with a record of outstanding safety and reliability proven the world over.

    Distributed deepwell pumps

    • Dedicated pump per tank allows a high number of cargo segregations
    • No need for a pump room
    • More space for cargo

    Pump room systems

    • Inherent redundancy – flexibility in case of pump failure
    • Lower overall cost
    • Higher pumping capacity
    Key Benefits
    • Electric systems promise lower total installed costs at the shipyard and lower running costs than hydraulic systems
    • Electric pumps offer lower CO2 emissions/environmental impact than hydraulic pump solutions; low noise electric pumps preferred by crew
    • Highest standards of on-time delivery consistency
    • World-leading technical support throughout the life of the system, through Wärtsilä’s world-wide network
    • Designed for use with Frequency Converters – suitable for cargoes within a wide range of specific gravity and viscosity, as well as energy savings
    • Product references proven over 45 years, building Svanehøj’s global reputation for excellence.
    • High performance deck mounted electric pumps can operate more efficiently than comparable hydraulic systems
    • Electric pumps offer lower CO2 emissions/environmental impact than hydraulic pump solutions; low noise electric pumps preferred by crew
    Technical info
    6,000 DWT 13,000 DWT
    45,000 DWT
    Powerpack room 33.0 m2 33.0 m2 75.0 m2
    HO storage tank 1.6 m2 1.6 m2 2.2 m2
    HO waste tank 1.7 m2 1.8 m2 2.5 m2
    Hydraulic version approx 36 m2 approx 36 m2 approx 80 m2
    Converter room 17 m2 13 m2 30 m2

    6,000 DWT 13,000 DWT 45,000 DWT
    Hydraulic Electric Hydraulic Electric Hydraulic Electric
    HO storage tank 3 220 130 3880 170 5 630 250
    Designated spaces 11 700 4 390 11 750 3 350 23 900 7 740
    Cabling 250 5 430 250 4 780 250 12 180
    Pumping 22 300 21 720 21 540 16 200 49 710 58 010
    Total 37 460 32 670 37 420 24 510 79 480 75 080
    •  Electric systems require less space, need fewer components
    • Cabling is easier and faster to install
    • Hydraulic pipework can require extensive testing and flushing


    6,000 DWT 13,000 DWT 45,000 DWT
    Hydraulic Electric Hydraulic Electric Hydraulic Electric
    Total initial costs $922,830 $603,838 $1,475,292 $969,407 $3,125,096 $1,788,778
    Difference (-)$318,992 (-)$505,885 (-)$1,336,319
    Annual capital costs $93,992 $61,502 $150,262 $98,736 $318,298 $182,191
    Annual operating costs $84,262 $37,933 $69,109 $41,396 $195,951 $121,149
    Total annual costs $178,254 $99,435 $219,371 $140,132 $514,249 $303,340
    Difference (-)$78,819 (-)$79,239 (-)$210,909
    • Electric systems typically have significantly lower initial purchase and installation costs
    • Total annual operating costs are typically lower for an electric system
    Services & Spares

    With 4500 field service professionals in more than 200 locations, in 70 countries, Wärtsilä’s network of Global Service Centres works 24 hours a day to provide the spare parts, replacement products and support that will protect your assets, optimise your efficiency and solve your problems fast. From the day we install your equipment to the day you scrap the vessel, we’re totally committed to keeping you operating, keeping you compliant and keeping you profitable. That’s lifecycle protection from Wärtsilä.​​

    Spare parts

    • Original spare parts for pumps
    • 48 hour quotation turnaround
    • Key component stock availability
    • OEM parts to guarantee the efficiency of your equipment
    • High stock availability and delivery anywhere in the world, to minimise your stock hold-up levels
    • Service Kits – ensures you have all the parts you need to service your product
    • Global frame agreements

    Replacements products

    •  Replacement and upgrades of existing
    • Wärtsilä pumps
    • Easy replacement of other makes of pumps, like-for-like or with high efficiency Wärtsilä pumps
    • Simple cost effective maintenance
    • Large stock of pumps available from stock, fast delivery, lead times as short as 2 days ex works
    • One stop shop for third party replacement pumps
    • Retrofits
    • Hydraulic and mechanical upgrades

    ​Service and support

    • Training
    • Upgrades
    • Troubleshooting
    • Commissioning
    • 24 hour worldwide technical support
    • Installation work and supervision
    • Life time support and spare parts for all pump products including Svanehoj, Hamworthy, Kvaerner and Eureka
    • Onboard pre-docking inspections and performance tests of deepwell pumps
    • Overhaul and repair during dry-dockings
    • Ensure your pumping equipment performs to the highest standards to optimize your operational efficiency
    • Reliable service partner
    • Rapid turnaround of quotes
    • Emergency repairs
    • Onsite Service:
      • Installation and Commissioning
      • Troubleshooting
      • On site repairs and upgrades

    Pre-docking inspection

    Wärtsilä offer the possibility of sending a service supervisor for a pre-docking inspection during a discharge operation. Our service supervisor will monitor the cargo deepwell and booster pumps for any abnormal vibration, noise, leakages from shaft sealing system etc. and carry out performance test before/during the discharge operation. Our supervisor will bring calibrated pressure gauges to ensure correct pressure readings and Class approved equipment for machine diagnostics (FFT) and data collection from pump(s) and electric motor(s).

    Performance test

    The performance test of cargo pumps is carried out in order to assess the wear and tear in the pump unit. We recommend this to be carried out approximately one month before the planned dry-docking date. The “performance test sheet” will give an indication of lack of performance in comparison with the original performance test carried out in our test bed when pumps were new and approved by classification society. Please note that the performance test carried out by operating the pump(s) either during discharge operation or during circulating cargo against closed valve for a short period. After the pre-docking inspection and performance test of pumps, we are able to issue a “Condition Assessment Report” where we as maker state our recommendations, which can then be presented to the Classification Society Surveyor.

    Wärtsilä Contacts

    Simon Robinson, Manager, Replacement Pumps
    Tel: +44 (0)1202 662630 Mob: +44 (0)7587 551470 Email: simon.robinson@wartsila.com
    Alan White, Manager, Aftersales
    Tel: +44 (0)1202 662600 Mob: +44 (0)7795 442623 Email: alan.white@wartsila.com
    Chooi Leng, Sales Manager, Replacement Pumps
    Tel: +65 6663 5593 Mob: +65 8200 6292 Email: chooileng.yap@wartsila.com
    Niels Ole Fisker, Manager, Aftersales
    Tel: +45 9637 2200 Mob: +45 2147 7939 Email: nielsole.fisker@wartsila.com

    Service 24-hour-hotline
    +45 40 26 39 74

    Product hologram


    • Tärntank Rederi AB
      Established on the island of Donsö, Sweden in 1958, operating one dry cargo ship, Terntank now operates nine chemical tankers from Skagen in Denmark.

      Tärntank Rederi AB

    • Palmali Shipping
      Palmali Group of Companies was established in Turkey in 1998. Nowadays, the company is operating in Russian inner ports, Black, Mediterranean, Caspian and Baltic Seas and the corporate goal has been shifted to worldwide transportation market.

      Palmali Shipping

    • Stena Weco
      The Stena Perros is a P-MAX tanker ordered by Concordia Maritime AB as part of a ten-ship contract with the Croatian shipyard Brodosplit. The MAX concept means that the vessels have been designed to undertake their maximum loading capacity in shallow waters.

      Stena Weco

    • Stena Polaris
      The Stena Polaris is a P-MAX tanker owned by Concordia Maritime. The vessel combines transport economy and flexibility with the very highest safety level. The vessel has been built to ice class 1 A specification, which means that it is well equipped to sail in ice-covered waters where broken ice can be up to 0.8 m thick.

      Stena Polaris


    Pumps that are second to none

    Supported by more than 100 years’ experience of pump design and manufacturing, it comes as no surprise...
    26 October 2016
    • Twentyfour7. article

    Related press releases

    Related products

    Contact us

    Please fill in the form if you have an inquiry related to PUMPS. Fields indicated with an asterisk (*) are required. If you have an inquiry concerning an existing installation, please send us a service inquiry.

    Find your local Wärtsilä office

    © 2018 Wärtsilä