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Vakuumløsninger

100% oil-free air compressors protect marine life with bubble curtain

19. april 2019

Antwerp, Belgium, September 29, 2016 - During installation of wind farms at sea, marine life has to be taken into account: the fragile fauna can experience nuisance during piling. Seaway Heavy Lifting contacted Atlas Copco Rental to deliver 100% oil-free compressed air to create a noise reducing bubble curtain during projects in the North Sea.

Wind farms Dantysk and Sandbank are located 80 km off the German shore in the North Sea. They can deliver 576 megawatt: enough energy for about 80,000 households. With the crane vessel ‘Stanislav Yudin’, Seaway Heavy Lifting, a company specialized in installation and deconstruction of offshore platforms and wind farms, took care of both farms.


Bubble curtain to decrease noise level

Seaway Heavy Lifting NL

The sound released during construction of offshore wind foundations is five times higher underwater than in open air. Sea mammals experience nuisance that can result in deafness or disorientation. Governments demand measures against these high noise levels to protect sea life. Seaway Heavy Lifting chose to reduce the sound level by means of a bubble curtain, created thanks to 100% oil-free compressed air supplied by Atlas Copco Rental.


100% oil-free compressors to deliver the requested capacity


To make sure the bubble curtains work efficiently, the capacity needed to be calculated upfront. For both projects a different pressure was required. We therefore created two different set-ups” explains Frank van den Heiligenberg, sales engineer Oil & Gas, Atlas Copco Rental Netherlands “A total flow of approximately 480m3/min with 10,3 bar max was needed for the Sandbank project where we used 13 PTS 1600 oil-free compressors. After the successful completion of this project, some of the compressors were transferred to the DanTysk project. The bubble curtain there required a higher capacity, so we used 5 PTS 1600 together with 13 PNS 1250 oil-free compressors for higher pressure creating a total flow of approximately 627 m3/min at 25 bar max.


Seaway Heavy Lifting sets high safety standards

Safety and reliability of our equipment is of utmost importance,” continues van den Heiligenberg. “All compressors, frames and hoses are certified. The compressors are put in special DNV 2.7-1 certified offshore lifting frames. With their custom-made chassis, they can easily be bolted on deck.


Offshore you need certainty that all compressors deliver the requested capacity. That is why all compressors were subject to a functional acceptance test to check if they can actually deliver the correct pressure and flow.


A few days later the compressors with all accessories were transported to Germany. An Atlas Copco Rental service engineer was 24/7 onboard for assistance, making sure the equipment performed as expected during the entire project.


Logistical challenge successful

“ Logistically this project was a challenge for both companies. Its success is for sure thanks to the intensive preparation and cooperation with each other. ”

Frits van Dorst , project engineer at Seaway Heavy Lifting

For mer informasjon kan du kontakte:


Atlas Copco er en verdensledende leverandør av bærekraftige produktivitetsfremmende løsninger. Gruppen leverer innovative kompressorer, vakuumløsninger og luftbehandlingssystemer, anleggs- og gruveutstyr, elektriske verktøy samt monteringssystemer. Atlas Copco utvikler produkter og tjenester som fokuserer på produktivitet, energieffektivitet, sikkerhet og ergonomi. Selskapet, som ble grunnlagt i 1873, har hovedkontor i Stockholm og driver virksomhet i mer enn 180 land. I 2015 hadde Atlas Copco en omsetning på 102 milliarder svenske kroner (11 milliarder euro) og mer enn 43 000 ansatte. Finn ut mer på www.atlascopcogroup.com.


Specialty Rental er en divisjon som tilhører Atlas Copcos forretningsområde Construction Technique. Den leverer også tjenester til industrisegmenter over hele verden i form av midlertidig leie av løsninger for luft og strøm. De spesielle utleietjenestene tilbys under flere varemerker. Enhetens hovedkontor ligger i Houston i USA.