AGR Subsea offers the most advanced dredge pumps available today.

AGR Subsea can supply two distinct types of suction dredge pumps for specific requirements. These products are used when highly accurate excavation is required or where access is limited or complex, for instance pile excavation for cutting access during platform decommissioning. 

DiscFlo Pumps

DiscFlo dredge pumps can be used for applications in which the discharge zone is a significant distance from the suction or pump skid. Based on unique DiscFlo viscous drag pumps and powerful submersible electric motors they offer the following competitive advantages.

• These pumps use powerful 370kW electric motors for subsea applications
• Material transfer rates of 60m³/hr, far greater than competing systems
• Excellent for displacing fine sands or higher solids content material
• Spoil is depositied some distance from excavation site - preventing backfil
• Excellent application for projects if too much power from Mass Flow Excavation may fluidise seabed
• Deployed and operated by divers or controlled by work class ROV
• Designed to prevent blockage due to clay
• Small 4 man crew for 24hr operation and swift mobilisation of small spread
• Variety of dredge heads available to AGR which suit the application requirements
• Power supplied by submersible electric motors or water pumped down from vessel
• DiscFlo pumps offer an extremely high flow-through area and undergo minimal wear whilst running

Ease of deployment is another massive advantage due to ROV friendly connections and a 'fit for purpose' Umbilical Hook and deck footprint is minimal. The pumps are skid mounted and can be deployed by vessel crane or by dedicated Launch & Recovery System.

The DiscFlo pump skid is easily deployed using the dedicated LARS. The skid can be deployed with buoyancy to prevent sinking into soft seabed. The deployment operation is rapid and safe.

Ejector Pumps

AGR Ejector Pumps are perfectly suited to cases involving sediment which contains a high level of debris. Due to the nature of design they are very robust (comprising no moving parts) and as with the DiscFlo Pumps, have a minimal deck requirement.

Deployment is easy using AGR Subsea's dedicated launch and recovery system (L.A.R.S.) or a standard umbilical winch and using suction hoses of up to 14", rocks of 8" diameter can be removed.

Uniquely, AGR Subsea Ltd can provide a dual purpose (DiscFlo and Ejector) pump skid which can be deployed from a single L.A.R.S.

This blend of technologies results in the maximum chance of success by offering both choice and versatility.