WARTSILA HAMWORTHY LTD 
By 15.10.2012
Wärtsilä has won a contract to supply ballast water management systems (BWMS) to four platform supply vessels (PSVs) for Tidewater Marine, L.L.C., one of the leading provider of offshore service vessels to the global energy industry.
The scope of supply for the vessels, due for delivery from the COSCO (Guangdong) Shipyard in 2014, includes four 250m3/hr capacity Wärtsilä AQUARIUS®UV BWMS, which will be assembled and shipped from Wärtsilä's manufacturing facility in the UK. The contract was signed with COSCO shipyard in August.
Wärtsilä AQUARIUS®UV is a modular ballast water management system involving filtration and medium pressure UV disinfection technology and designed to provide a safe, flexible and economical process.
The 3,800Dwt PSVs will transport pipes, equipment and cargo to and from pipe laying barges, oil drilling and production platforms. Recognising the associated operational profile, AQUARIUS® UV was favoured over the alternative AQUARIUS® EC system due to owner technology preferences and more favourable space, power and cost constraints on this ship application.
The first of the AQUARIUS® UV systems will be delivered to the shipyard in January 2013 and then at two-month intervals.
"This contract is our first commercial order for PSVs and the selection of a Wärtsilä ballast water management system by Tidewater Marine, L.L.C. underlines confidence in our ability to deliver in this emerging market" says Dr Joe Thomas, Director, Ballast Water Management Systems, Wärtsilä Environmental Solutions.
Ballast water treatment with the AQUARIUS® UV system is achieved through a two stage process. Upon uptake the sea water is first passed through a back washing filter (First stage). The filtered sea water then passes through a UV chamber (Second stage) where ultra-violet light is used to disinfect the water prior to entering the ballast tank. Upon discharge, water from the ballast tanks passes through the UV chamber only for a second time.
AQUARIUS® UV has been tested extensively at the Royal Netherlands Institute for Sea Research (NIOZ) facility in the Netherlands during 2011. Sea trials on a 2,000Dwt LPG Carrier have been completed, with the system is now fully operational. All testing was witnessed by Lloyd's Register and IMO Type Approval via the Dutch Administration is expected before delivery of the first units - a contractual condition.
Wärtsilä offers the AQUARIUS® EC and AQUARIUS® UV, which both became part of the portfolio following the acquisition of Hamworthy plc in January 2012, in addition to the MARINEX UV ballast water management system which has been developed and marketed jointly with Trojan Technologies since 2010.
"Our broad technology choice, coupled with a full spectrum of services from the supply of equipment to bespoke turnkey retrofit solutions, all with through life technical and service support on a global basis, underscores Wärtsilä's commitment to this crucial sector of the maritime market," Dr Thomas says.
For further information, please contact:
Karina McCormack, Marketing Manager, Wärtsilä Ship Power, Fleets Corner, Poole, Dorset, BH17 0JT, UK, Tel: +44 (0)1202 662636. e-mail: kmccormack@hamworthy.com
Notes to editors:
On 31st January 2012, Hamworthy was acquired by Wärtsilä Corporation. The official name is now Wärtsilä Hamworthy Ltd.
Wärtsilä is a global leader in complete lifecycle power solutions for the marine and energy markets. By emphasising technological innovation and total efficiency, Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers. In 2011, Wärtsilä's net sales totalled EUR 4.2 billion with approximately 18,000 employees. The company has operations in nearly 170 locations in 70 countries around the world. Wärtsilä is listed on the NASDAQ OMX Helsinki, Finland.www.wartsila.
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