4-Inch DSP/HD 4000 43-HP Self-Priming Pump
The 4-Inch DSP/HD 4000 Self-Priming Pump is a diesel-powered slurry pump engineered for high-solids transfer in demanding industrial and dredging applications. Powered by a 43 HP Kubota engine, the system delivers flow rates from 250 to 1,200 GPM with discharge heads up to 200 ft. Built around EDDY Pump’s non-clog technology, it can handle abrasive slurries containing up to 70% solids and particles up to 3 inches without plugging. Abrasion-resistant components such as a high-chrome rotor, heavy-duty shaft, and mechanical seals improve durability in harsh environments, while the trailer-mounted configuration allows quick deployment for remote pumping operations.
Operational Strengths
- Non-clog pump design allows continuous pumping of abrasive slurry, sand, sludge, and solids without frequent blockages, reducing downtime and maintenance interruptions.
- Handles high solids concentrations up to 40 to 70 percent by weight, making it suitable for demanding dredging, mining, and industrial slurry transfer operations.
- Capable of passing solids up to 3 inches in diameter, enabling reliable pumping of coarse materials that typically clog conventional centrifugal pumps.
- Flow capacity ranging from 250 to 1,200 GPM with discharge heads up to 200 ft supports a wide range of dewatering and slurry transport applications.
- Powered by a 43 HP Kubota diesel engine that delivers dependable performance and efficient fuel consumption for continuous field operation.
- Abrasion-resistant pump components including a high chrome rotor and volute extend service life when handling aggressive slurry and sediment mixtures.
- Dual mechanical seal configuration using tungsten carbide or silicon carbide seal faces improves reliability and protects internal components during abrasive pumping conditions.
- Trailer-mounted configuration with lifting points and leveling jacks allows fast deployment and easy relocation between job sites.
- Self-priming capability eliminates the need for external priming systems and simplifies pump startup in remote or temporary installations.
- Heavy-duty construction designed for harsh industrial environments such as dredging, mining tailings transfer, wastewater treatment, and construction dewatering.
Gallery
4-Inch DSP/HD 4000 43-HP Self-Priming Pump
Technical Specifications
Pump Performance
- Flow Range: 250 – 1200 GPM
- Head Range: Up to 200 ft
- Max Speed: 1800 RPM
- Percent Solids: Up to 70%
- Solids Handling: Up to 3 inches
- Discharge size: 4-inch
- Suction Size: 6-inch
Pump Construction
- Rotor: High Chrome 28%, Ductile Iron, Stainless, Duplex Stainless (custom options)
- Volute Casing: High Chrome 28%, Ductile Iron, Stainless, Duplex Stainless
- Shaft: Chromoly or Stainless Steel
- Mechanical Seal: Dual Tungsten or Silicon Carbide with flushing system
- Bearing Housing: Ductile Iron or Stainless Steel
Engine Specs
- Model: Kubota V2403-MDI
- Power: 43-HP (32kW), 4-cycle, turbocharged diesel
- Cooling: Liquid-cooled, 12V
- Fuel System: Electronic fuel system
- Warranty: 2 years / 2000 hours
Standard Configuration
6k Single Axle Trailer, 96-gallon fuel cell
Over-the-road light package
3-position HD hitch, dual leveling jacks
Accessories: Work light, flow gauge, 4 D-ring tie downs
EDDY Pump – 4 Inch – Pump Curve
PUMP CURVE
The pump curve for the 4-Inch DSP/HD 4000 Self-Priming Pump shows a performance range of 250 to 1,200 GPM with a total dynamic head up to 200 ft. The system maintains efficient slurry transport across varying flow conditions while handling high solids content. Actual performance may vary depending on slurry density, particle size, suction conditions, and system configuration.
Self-Priming Pump Comparison Table
| Model | Discharge Size | Suction Size | Power | Flow Range (GPM) | Head Range (ft) | Solids Handling | % Solids by Weight | Max Speed (RPM) | |
|---|---|---|---|---|---|---|---|---|---|
| DSP/HD 3000 | 3" | 4" | 43 HP | 100 - 780 | Up to 130 | Up to 2" | 40-70% | 1800 | ENG |
| DSP/HD 4000 | 4" | 6" | 43 HP | 250 - 1200 | Up to 200 | Up to 3" | 40-70% | 1800 | ENG |
| DSP/HD 4000 | 4" | 6" | 115 HP | 250 - 1200 | Up to 200 | Up to 3" | 40-70% | 1800 | ENG |
| DSP/HD 6000 | 6" | 8" | 115 HP | 450 - 2000 | Up to 200 | Up to 5" | 40-70% | 1800 | ENG |
| DSP/HD 6000 | 6" | 8" | 173 HP | 450 - 2000 | Up to 200 | Up to 5" | 40-70% | 1800 | ENG |
| DSP/HD 8000 | 8" | 10" | 550 HP | 1600 - 5000 | Up to 240 | Up to 7" | 40-70% | 1200 | ENG |
| DSP/HD 10000 | 10" | 12" | 550 HP | 1600 - 5000 | Up to 240 | Up to 9" | 40-70% | 1200 | ENG |
| DSP/HD 12000 | 12" | 14" | 700 HP | 2600 - 7300 | Up to 180 | Up to 11" | 40-70% | 900 | ENG |
Industries and Applications
Mining and Mineral Processing
The 4-inch DSP/HD 4000 Self-Priming Pump is widely used in mining operations for transferring slurry, mine tailings, and process water containing abrasive solids. Its ability to handle high solids concentrations and large particles makes it suitable for tailings pond management, slurry transport, and sediment removal in active mining environments.
Dredging and Sediment Removal
This pump supports dredging operations that require reliable slurry transfer from rivers, ponds, and industrial basins. The non-clog design allows continuous movement of sand, silt, and sediment mixtures without frequent blockages, improving dredging efficiency in maintenance and environmental remediation projects.
Construction and Infrastructure
Construction sites often require the removal of slurry, mud, and sediment-laden water from excavation zones. The DSP/HD 4000 pump provides dependable dewatering and slurry handling capability for foundation work, trenching projects, and infrastructure construction where abrasive material is present.
Wastewater and Industrial Treatment
Industrial facilities and wastewater plants use slurry pumps to manage sludge and solids-heavy waste streams. The pump’s ability to move thick sludge and abrasive mixtures supports processes such as lagoon cleaning, sediment removal, and sludge transfer within treatment systems.
Oil, Gas, and Energy Operations
Energy and oilfield operations often encounter drilling waste, tank sludge, and sediment accumulation in pits and storage areas. This pump enables reliable transfer of these abrasive materials while operating in remote locations where diesel-powered pumping equipment is required.
Harbor Sediment Removal in Mobile, Alabama
Case Study
The Problem
A marine maintenance contractor responsible for maintaining a commercial harbor channel in Mobile, Alabama, faced rapid sediment accumulation caused by tidal currents and nearby river discharge. Sand and silt deposits had reduced the navigable depth from 12 ft to less than 6 ft in several docking zones, preventing cargo vessels and service barges from safely entering the harbor. The contractor initially attempted sediment removal using a conventional centrifugal dredge pump, but the system repeatedly clogged when pumping dense sand mixtures and shell debris. Frequent shutdowns and impeller wear slowed production and increased maintenance costs, making it difficult to meet the project deadline.
The Solution
The contractor deployed an EDDY Pump 4-inch DSP/HD 4000 Self-Priming Pump mounted on a mobile trailer and integrated into a compact dredging system on a small service barge. The diesel-powered pump was connected to a dredge suction head on the harbor floor, enabling continuous removal of compacted sand and sediment. The EDDY Pump non-clog design allowed the system to handle abrasive slurry with solids concentrations approaching 50 percent by weight while passing larger debris without blockage. The dredged slurry was transferred through a 4-inch discharge pipeline running 400 ft to a designated shoreline containment area.
The Result
The dredging system maintained an average production rate of 700 to 750 GPM and removed nearly 2,100 cubic yards of accumulated sediment in just four days of operation. Harbor depth was restored from 6 ft to 12 ft across the affected docking area. Compared to the previously used centrifugal pump, the EDDY Pump system reduced clogging events by more than 70 percent and eliminated several hours of daily maintenance downtime, allowing the contractor to complete the project nearly two days ahead of schedule.
Call for sales or support
If you need assistance with pump selection, sales or engineering support, call 619-404-1916.
Questions? Talk to an Engineer
Frequently Asked Questions
What types of materials can the 4-inch DSP/HD 4000 Self-Priming Pump handle?
This pump is designed to move abrasive slurry, sand, sludge, sediment, mine tailings, and other solids-laden fluids. The non-clog pump design allows it to handle high solids concentrations, typically between 40 and 70 percent by weight, while passing solids up to approximately 3 inches in diameter. This capability makes it suitable for dredging, mining, construction dewatering, and industrial sludge transfer.
What is the maximum flow rate and head for this pump?
The 4-inch DSP/HD 4000 pump typically operates within a performance range of approximately 250 to 1,200 gallons per minute with discharge heads up to about 200 feet. Actual performance depends on factors such as slurry density, pipeline length, elevation changes, and suction conditions. Pump curves should be reviewed during system design to determine the optimal operating point.
What type of power system does the pump use?
The system is powered by a 43 HP Kubota diesel engine. Diesel power allows the pump to operate independently of electrical infrastructure, making it ideal for remote job sites, temporary pumping operations, and field deployment in dredging or mining projects.
How does the self-priming feature benefit operations?
The self-priming configuration allows the pump to remove air from the suction line and start pumping without manual priming or external vacuum equipment. This simplifies startup procedures and reduces setup time in field operations, particularly in applications where pumps are frequently relocated or restarted.
What industries commonly use the DSP/HD 4000 pump?
This pump is commonly used in mining, dredging, construction, wastewater treatment, oil and gas operations, and industrial processing facilities. These industries often require reliable equipment capable of handling abrasive slurry and solids without clogging or excessive wear. Read more about industries and pumps usages
What materials are used to improve durability in abrasive applications?
Key internal components such as the rotor and volute are typically manufactured from abrasion-resistant materials like 28 percent high chrome. The shaft may be constructed from chromoly steel or stainless steel depending on the configuration, and mechanical seals are designed to withstand harsh slurry environments.
Can this pump be used for dredging applications?
Yes. The pump is frequently integrated into dredging systems where it transfers sediment mixtures such as sand, silt, and sludge from waterways, ponds, or lagoons. It can be paired with suction heads, dredge attachments, or floating intake systems to support small to mid-scale dredging operations.
Is the pump suitable for mobile or temporary pumping operations?
The pump is commonly mounted on a trailer frame with lifting points and leveling jacks, allowing it to be transported easily between job sites. This configuration is useful for contractors, dredging crews, and industrial maintenance teams that require portable pumping equipment.
What maintenance practices are recommended for long-term performance?
Routine maintenance typically includes inspection of mechanical seals, monitoring engine performance, checking hoses and pipeline connections, and inspecting wear components such as the rotor and volute. Proper maintenance helps ensure consistent pumping performance when operating in abrasive slurry environments.
What factors should be considered when selecting this pump for a project?
Key selection factors include slurry density, particle size, required flow rate, discharge distance, and elevation changes in the system. Engineers also consider pipeline diameter, suction conditions, and expected solids concentration to ensure the pump operates within its optimal performance range.
HD (Heavy Duty) Slurry Pumps / Dredge Equipment
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