Product Description
Toyo DPE Slurry Pumps
The Toyo DPE Slurry Pumps provide extra-heavy-duty pumping for sand, gravel, rock and dense abrasive slurry in permanent installations. They use the proven wet-end construction of Toyo DP pumps. However, the DPE configuration adds a heavy fixing base and guided lifting arrangement.
Therefore, operators can remove the pump for servicing without dismantling the discharge hose. Moreover, the patented agitator loosens settled material and directs it towards the closed impeller.
Fixed-Installation Design of Toyo DPE Pumps
Each Toyo DPE fixed-installation pump includes a heavy mounting base, detachable discharge bend, guide-pipe braces and suspension chains.
Consequently, technicians can raise or lower the pump along the guide system. In addition, the detachable bend remains connected to the discharge pipe while the pump leaves the sump.
As a result, facilities can simplify inspection, wear-part adjustment and scheduled maintenance.
Main Features and Benefits
- Dedicated fixed-installation design
- Heavy fixing base
- Detachable discharge bend
- Guide-pipe support braces
- Suspension chains
- Patented shaft-mounted Toyo agitator
- Closed slurry impeller
- Large open solids passages
- Heavy-duty shaft and bearings
- Special seals operating in an oil bath
- Four-, six-, eight- or ten-pole motors
- Motor service factor of 1.35
- High-chrome hydraulic wear components
- Adjustable wear plates
- Alternative metallurgy options
Together, these features make the Toyo DPE Slurry Pumps suitable for permanent mining, dredging and industrial slurry systems.
DPE Slurry Pump Performance
The DPE range provides pumping capacities up to approximately 360 m³/h. Moreover, suitable configurations can handle slurry containing up to 70% solids by weight.
Toyo positions the DP and DPE ranges for slurry densities of approximately 1.35 kg/dm³ and above. However, these figures represent series-wide capabilities.
Therefore, engineers must select the exact DPE submersible slurry pump from its individual hydraulic curve and solids-handling data.
Patented Agitator System in Toyo DPE Pumps
The agitator mounts directly on the pump shaft. During operation, it loosens compacted sand, sediment, gravel and process residue around the inlet.
Consequently, the Toyo agitator pump creates a more uniform slurry mixture before the impeller draws material into the casing. Moreover, continuous agitation may reduce manual sump excavation and cleaning.
Nevertheless, the agitator cannot process every material. Therefore, users must identify particle hardness, dimensions and concentration before selecting a pump.
Heavy-Duty Hydraulic Construction
The DPE pump uses a closed impeller and large open passages. As a result, compatible solids can travel through the casing with fewer restrictions.
In addition, the heavy-duty shaft and bearing arrangement supports changing slurry loads. The custom motor also operates at relatively low speed. Consequently, it provides the torque required for dense solids transfer.
High-Chrome Wear Components
Toyo manufactures the impeller, wear plates and agitator from cast chrome iron containing approximately 24% to 28% chromium.
Therefore, these components resist abrasion from sand, minerals, rock and industrial sediment. Moreover, adjustable wear plates allow technicians to restore hydraulic clearances as gradual wear occurs.
Consequently, correct adjustment helps maintain efficiency and may extend component life.
Motor and Seal Protection
The Toyo DPE Slurry Pumps use custom four-, six-, eight- or ten-pole electric motors with a 1.35 service factor.
Therefore, the motor can support variable loads during heavy slurry pumping. Meanwhile, special mechanical seals operate inside an oil bath.
As a result, the oil lubricates and cools the sealing faces while separating them from abrasive slurry.
Large Solids Handling with DPE Pumps
Selected DPE configurations can pass compatible particles measuring up to 120 mm. Consequently, the pump can transfer large solids that may obstruct conventional industrial pumps.
However, physical passage alone does not guarantee suitability. Therefore, engineers must also examine particle shape, hardness, settling behaviour and concentration.
DPE Slurry Pump Operating Limits
Published DPE Series limits include:
- Maximum capacity: Up to 360 m³/h
- Slurry density: Approximately 1.35 kg/dm³ or higher
- Solids concentration: Up to 70% by weight
- Maximum particle size: Up to 120 mm
- Standard slurry temperature: Up to 60°C
- High-temperature version: Up to 80°C
- Permitted pH range: 4–14
- Standard operating depth: Up to 30 m
However, these maximum figures do not apply simultaneously to every pump. Therefore, users must confirm the selected model’s individual limits.
Easier Maintenance in Fixed Installations
The DPE guide system allows technicians to lift the pump while leaving the discharge hose or pipework assembled.
Consequently, maintenance teams can access the impeller, agitator and wear plates more efficiently. Moreover, the heavy base helps return the pump to the correct operating position after servicing.
This arrangement particularly benefits deep sumps and hazardous industrial areas where repeated pipe dismantling would increase downtime.
Applications for Toyo DPE Slurry Pumps
The Toyo DPE Slurry Pumps may support:
- Permanent mining sumps
- Fixed dredging stations
- Quarry slurry transfer
- Sand and gravel pumping
- Industrial settling basins
- Tailings and process residue
- Abrasive sludge transfer
- Steel and mineral plants
- Tank and lagoon clean-out systems
- Heavy sediment pumping
- Construction slurry stations
- Permanent solids-transfer installations
Moreover, the guided base arrangement suits facilities that require frequent planned inspection. Nevertheless, engineers must calculate the full system head and review slurry characteristics.
Choosing the Correct DPE Slurry Pump
Correct selection depends on flow, total head, slurry density, solids percentage and maximum particle size.
In addition, engineers should confirm slurry temperature, pH, abrasion level, installation depth, motor supply and guide-system dimensions. Therefore, specialists should select the Toyo DPE Slurry Pumps from model-specific technical data.
Otherwise, an unsuitable pump may experience rapid wear, insufficient capacity or motor overload.
Request UAE Pricing and Technical Support
Contact our pump specialists for technical selection, specifications and UAE pricing.
Please provide the required flow, total head, slurry density, solids percentage, particle size, temperature and sump arrangement. Consequently, our team can recommend the correct Toyo DPE Slurry Pumps configuration.