HOME ABOUT US ACTIVITIES MARKETS IR CSR CAREERS Search Nederlands Download center Press Contact FALLPIPE VESSELS A fallpipe vessel (FPV) is a self-propelled vessel that is equipped with a flexible fallpipe. The vessel's design allows the fallpipe to be lowered into the water beneath the vessel. Uniquely, the fallpipe vessel can position rock with extreme accuracy down to a depth of 1,500 meters. These vessels are highly suited to cover offshore cables and pipelines. They are also used to prepare the seabed for offshore structures and to put in scour protection for offshore wind turbines and platforms. Rock is loaded onto a fallpipe vessel at a quarry. The rock is stored in two holds with a maximum total capacity of 24,000 tons. After reaching the offshore project location, it switches to Dynamic Positioning (DP) mode. The DP system keeps the vessel in exactly the required position. That makes it possible to position rock with the desired accuracy on a predetermined route. Depending on the project specifications, the vessel can position the rock in various ways. There is a Remotely Operated Vehicle (ROV) at the lower end of the flexible fallpipe. The rock is taken on conveyor belts from both holds to the central area, after which the rock is sent through the chute into the fallpipe.The fallpipe and ROV are positioned above the starting point to deposit rock with great accuracy. When rock has to be positioned in a place that the fallpipe cannot reach, as in offshore wind parks or around offshore platforms, the side dumping unit is used. A fallpipe vessel can also be used to ballast the legs of offshore platforms, and this work can involve, for example, pumping a mixture of water and rock into the legs. Clip: fallpipe vessel Play video Project highlights Play video West of Duddon sands — Offshore wind farm Boskalis was responsible for the post-lay installation of scour protection around 108 monopiles at the offshore wind farm West of Duddon Sands. 92,000 TE of 9 – 18” armour rock was installed through the side dump unit of DP Fallpipe vessel Seahorse. 1 2 3 Browse our fleet Also of interest Download Rock removal tool Download Wind farm foundation installation, West... Download Transport and installation, Dolwin Beta HDV... Share this Facebook Twitter Linkedin Google+ E-mail Print Back to top Quick links Vacancies Contact us Company profile Activities Share charts Download center Boskalis shop - merchandise NINA safety program Stay up to date Press releases and news RSS Magazine: Creating New Horizons Subscribe to updates Unsubscribe from updates Vimeo Youtube Linkedin Facebook Twitter Visit our other websites Gardline SMIT Boskalis Australia Boskalis Dragamex Boskalis Environmental Boskalis Hirdes Boskalis Nederland Boskalis Rock Fall Boskalis Russia Boskalis Sweden Boskalis Terramare Boskalis Westminster Nigerian Westminster Dredging Irish Dredging Llanelli Sand Cofra Keppel Smit Towage Kotug Smit Towage Saam Smit Towage Smit Lamnalco BACK TO TOP 2018 © Royal Boskalis Westminster N.V. Privacy statement Cookie policy Disclaimer Terms and conditions of purchase Sitemap