DOS Gravel Sand Dredge Pump

DO Slurry Pump 
Heavy duty, sand pump, gravel pump, dredge pump, mud pump,  sludge pump, G type

DOS Gravel Sand Dredge Pumps are designed specifically for continuous pumping a wide particle size aggressive slurry, and they are typically used for pumping sand, gravel, dredging where solids are too large to be handled by other heavy duty slurry pumps

Parameters and Pump Selection
DOS Gravel Sand Dredge Pumps are designed specifically for continuous pumping a wide particle size aggressive slurry, and they are typically used for pumping sand, gravel, dredging where solids are too large to be handled by other heavy duty slurry pumps. Capable handling large particles at consistently high efficiency will reduce cost to ownership.

Design and Unique Features
DOS Pumps are designed for gravel and sand dredge from river and/or sea, as well as large particle pass in mining operations. The unique segmented clamp ring on larger size units and solid on smaller pumps,facilitates casing rotation to any angle, reducing the need for costly high wearing bends. Minimal maintenance is required.Impeller expulsion vanes reduce gland pressure and intrusion of high concentrations of solids in the gland area. Efficiency is maintained by minimising suction side recirculation.

3. Specially designed and shaped impeller vanes allow the handling of extraordinarily large particles. The unique casing design and sealing vanes prevent abrasive solids intrusion at the sealing faces.
4. The large, robust casing has been designed to reduce internal velocities resulting in minimum efficiency loss and improved casing wear life. The casing is made up of three components to reduce maintenance time and costs associated with a onepiece design. (Except the 6/4 D-DOS which has two components)
5.heavy-duty grease lubricated taper roller bearing assemblies are fitted as standard. A rigid large diameter shaft with reduced overhang minimises deflection and vibration under all conditions ensuring trouble free operation. Unusually high service factors enable the assembly to carry all radial and axial thrusts.
6. A unique “-10” (dash 10) end cover assembly comprising of V-seals, double piston rings and an external flinger with grease lubricated labyrinths are standard with all slurry pumps.