VARISCO Dredging pumps

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Products > Submersible pumps > Dredging pumps VARISCO Italy

The Varisco HD (Heavy Duty) dredging pumps are designed to pump settled slurry containing solids up to 5” and concentrations up to 70% by weight of the liquid. They are all equipped with agitator made of very hard materials.
Standard sump and solids handling sump pumps have a problem with solids that settle at the bottom of the sump. The normal intake velocity does not have enough force to pick up the solids and pump them to a sufficient extent. Almost all the liquid is pumped, while the bulk of the solids remain at the bottom of the sump. The agitator prevents the solids from blocking the pump inlet and mixes them with the liquid, creating a slurry that can easily be handled by the pump.

		HD with electric motors SPECIFICATIONS • Power 5 - 150HP • Bore 80 - 300 mm • Max flow 900 m3/h • Max head 30 m • Max solids passage 20 - 120 mm MATERIALS • Pump body in cast iron GS500 • Wear parts in high chrome cast iron • Motor body in cast irion G25 • All the components are robustly constructed for heavy duty operation MOTOR DATA • 8-6-4 pole, depending on the type • Voltage 3~400V/50HZ • Protection ΙΡ68, isolation class F

HD pumps with hydraoulic motor can be equipped with 1 or 2 excavators		HD with hydraulic motor SPECIFICATIONS • Power 35 - 400HP • Bore 100 - 350 mm • Max flow 1200 m3/h • Max head 43 m • Solids passage 35 - 120 mm MATERIALS • Pump body in cast iron GS500 • Wear parts in high chrome cast iron • Motor body in cast irion G25 • All the components are robustly constructed for heavy duty operation MOTOR DATA With hydraulic motor. Power pack is needed to supply neccessary flow and pressure of oil Oil flow needed : 54 - 600 lt/min, depending on the type Oil pressure needed 210-350 bar, depending on the type
		Watch the video : Brochure

		Applications
		•Waste sludge handling •Tank clean out •Waste collection ponds •Thickener clean out •Barge unloading
		•Waste collection pit •Ash sumps •Dredging waste ponds •Bark collection pit •Clean up sumps
		•Gold tailings reclamation •Ball mill sumps •Settling and collection ponds •Underground slimes collection sumps •Conveyor tunnel sumps •Tailings back-fill system •Preparation plant collection sumps •Coal tailings relocation •Open pit slimes removal •Crusher sumps •Grinding area sumps •Flotation area sumps •Removal of material from thickeners •Truck wash sumps
		•Mill scale pits •Coke plant scale pit •Blast furnace slag pit •Water treatment sumps •Clean up sumps
		•Dredging deep deposits (up to 120 m deep) •Recovery of sand not mined by primary dredge •Offshore/ocean sands mining to reclaim beaches •Slimes settling area relocation
		•Trench clean out and back-fill in pipe/cable laying projects •Clean out caissons in construction •Transfer of bentonite slurry •Overburden removal •Silt from gravel washing
		•Removal of silt build up at marinas, harbours, dock loading facilities, etc. •Clean out of contaminated sludge collection ponds •Reclaiming beaches •River, lake and canal clean out
		•Coke conveyor spillage sumps •Crude oil tank clean out •Sludge transfer •Settling/collection pits •Tailings recovery •Coke fines collection pit •Relocation of sand filled drilling rigs •Drilling mud barge unloading
		•De-silting water intakes •Emergency dump pond •Ash decant sumps •Fly ash collection sump •Ash and waste collection pit •Scrubber sludge transfer •Lime collection pit •Coal wash-down sumps
		•Pumping marble dust

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