• Rock dump and drillcut removal • Pipeline deburial ... - Dredgepoint

ROV DREDGESThe Scanrovdredge systems have proven an efficient and reliable tool during worldwideoperations in excavation tasks with limited accuracy requirements such as:• Rock dump and drillcut removal• Pipeline deburial• Relocation of seabed• Wreck cargo relocation/salvageThe Scanrovdredge ejector systems are designed to be assembled and fitted ontowork-class ROV’s. The water pump motors are driven by the ROV hydraulic circuitsand the suction nozzle is positioned using the ROV’s manipulator.The systems are available as a rental service which are interfaced, operatedand maintained by the customers ROV team.Available in ejector sizes 4”, 6”, 6” reversible, 8”, and 10”.Gismerøyveien 207NO-4515 MandalTel.: +47 38 27 81 00Fax: +47 38 27 81 01postmaster@scanmudring.nowww.scanmudring.no

TECHNICAL SPECIFICATIONGENERALType: Vako ROV ejector system 4’’ 6’’ 6’’* 8’’ 10’’ReversibleCapacitiesWater capacity [m³/h] 228 300 300 620 800Max capacity [m³/h]** 22 30 30 50 64Max particle sizes [mm] 90 140 140 185 230Recommended average particle sizes [mm] 50 75 75 100 125Ejector inner diameter [mm] 100 150 150 200 250Jet nozzle available (on request) Yes Yes Yes Yes YesJet nozzle pressure [bar] 4-5 4-5 4-5 4-5 4-5Mechanical DetailsEjector weight [kg] 8 10,5 20 13 25Exhaust weight [kg] 3 5,4 5,4 12 20Motor/pump weight [kg] 23 25 25 2 x 25 2 x 25(subject to type) 2 x 36 2 x 36Hydraulic Supply InterfaceOil supply flow [l/min] 36 50 50 2x50*** 2 x 50Max Oil supply pressure [bar] 200 200 200 200 200The ROV Dredge system is as standard delivered with the following equipment:• ROV Dredge with camlock connectors• Water pump with hydraulic motor• Suction hose (length as specified by client)• Water supply hoses for connecting water pump and ROV Dredge• Hydraulic hoses for supply, return, and case drain lines(client specific length and hydraulic fittings)• Spare suction hose• Spare water pump assembly• Storage and transportation boxThis document is the property of Scanmudring (rev.C)* The Reversible function requires an additional hydraulic circuit to power actuator.** The removal capacity is heavily dependent on soil characteristics, ejector/pump sizes, operation conditions present at site, as well as thehydraulic capacity of the ROV. As a guideline the capacity is about 8-10 per cent solid mixtures in water, but the actual achieved capacityis normally lower. For project estimates a removal capacity about 2-3 per cent should therefore be expected.*** Optional water pump 1x80LPM/200bar with customised “clamp on” buoyancy fitted available on request.Gismerøyveien 207, NO-4515 Mandal, Tel.: +47 38 27 81 00, Fax: +47 38 27 81 01, E-mail: postmaster@scanmudring.nowww.scanmudring.no