High Performance

Oceanographic Mooring Swivels & ROV Push Coreres

EE1-EE2-EE3 Data sheet

EE1 & the new EE3

The Elkins EE-1, EE-2 & EE-3 swivels features a rotating spindle which is located exactly within twin needle roller bearings with the inline forces being carried independently via a single heavy duty thrust race. Manufactured to a design by The National Oceanographic Centre, Southampton, the complete assembly is oil filled and due to its unique pressure balanced system can ensure freedom of movement even at the greatest ocean depths.

 The complete assembly is manufactured to an extremely high quality and is oil filled to achieve pressure balance at full ocean depth.  The EE series swivels ensure total rotational freedom at depth and under load.  The titanium body provides maximum resistance to corrosion in sea water and will endure many years of operation. 

Ideal for long term deployments in seawater for oceanographic instrument strings, ie: current metres, moored buoys, underwater tow ropes and cable laying; fishing (benthic) nets, CTD systems, pingers, transponders, samplers, transducers, camera rigs, or any other sub sea system that needs to be protected from tangling in the mooring. 

Users include Southampton Oceanography Centre, UK, North Pole Station 355640, Applied Physics Laboratory of Washington, University of Alaska, Institute of Marine Science, AWI and British Antarctic Survey

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The Elkins EE-PC-1 & EE-PC-2  ROV Sediment Coring Devices were designed at NOC Southampton and are manufactured under licence to the highest standards by underwater engineering specialist Elkins Engineering. 

The devices are designed to be operated by ROV’s to obtain sediment cores in shallow or deep water applications. 

Available in two standard sizes, the push corers consist of a Perspex tube, one way valve and ROV T-bar handle. Traditionally sediment coring is undertaken remotely from surface vessels, however use of an ROV facilitates the ability to take multiple and high quality cores from highly targeted locations with specific seabed types or habitats, for biological, physical or chemical analysis.

 The corers comprises two separate parts, the core tube with T bar and the corer housing.  The transparent push core is manipulated using the T bar handles and pushed into the sediment of interest.  A one way valve at the top of the sample chamber allows water to escape as it is replaced by the sediment core.  Upon removal from the sediment, the sample is returned to its housing.  The housing is manufactured with a flared opening to allow for easy alignment of the returning core tube.  At the base of the housing is a tapered, rubber plug which seals the sample within the assembly.  Upon recovery to the surface, the T bar and valve are simply removed and the core with its rubber plug are removed from the housing by a simple twist fitting at the base.

 Special configurations of the design are available for specific missions; please contact us to discuss your requirements.

EE-PC-1 & 2 Data sheet

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