3-Inch Slurry Pump (4×3) – Submersible
HD-3000 (4″ Suction by 3″ Discharge) Closed Coupled or Flex Coupled EDDY Slurry Pump – Heavy Duty Line
The EDDY Pump 3-Inch Heavy Duty Slurry Pump is engineered for demanding applications where high-solids, abrasive slurries defeat conventional pumps. Built around EDDY Pump’s patented non-clog technology, this unit delivers up to 780 GPM with a head up to 130 feet while handling solids up to 2 inches at concentrations reaching 40 to 70 percent. Operating at 1800 RPM with a 3-inch discharge and 4-inch suction, it excels in sludge, slurry, grit, and tailings transfer. High-chrome wear components, dual mechanical seals, and heavy-duty construction ensure long service life in mining, chemical, and industrial environments.
Performance-Driven Design
- Patented non-clog design uses a fluid vortex to move solids, allowing rocks, grit, sludge, and debris to pass without clogging or internal damage.
- Handles 40 to 70 percent solids by weight, maintaining stable performance in dense, variable slurries where conventional pumps fail.
- Wear components are available in High Chrome 28 percent and hardened alloys, extending service life in abrasive and corrosive environments.
- Delivers up to 780 GPM and head up to 130 feet in a compact 3-inch footprint, ideal for tight installations with industrial output needs.
- Dual mechanical seal with a self-contained flushing system protects internal components from abrasive intrusion and reduces maintenance.
- Supports vertical or horizontal mounting with electric, hydraulic, or diesel power options for seamless system integration.
- Heavy-duty bearings and reinforced construction support continuous-duty operation in mining, chemical, and industrial slurry applications.
How EDDY Pump Moves What Others Cannot
EDDY Pump’s patented open rotor design uses high internal tolerances that allow anything entering the intake to pass through the discharge without obstruction. Unlike centrifugal pumps that rely on tight clearances between the impeller and volute, EDDY Pump systems maintain wide passageways that prevent clogging and binding. In models ranging from 1 inch to 12 inches, these tolerances span from 1 to 12 inches, enabling the pump to move rocks, debris, and dense solids that would instantly stall conventional designs. This architecture allows massive volumes of slurry and debris to flow continuously, translating into reliable performance in the most abrasive and unpredictable environments.
Gallery
3-Inch Slurry Pump In Action
Technical Specifications
Performance Specifications
- Flow Range: 100 – 780 GPM
- Head Range: Up to 130 ft
- Solids Handling: Up to 2 inches
- Percent Solids by Weight: Up to 70%
- Production Rate: 45-75 yd³/hr
- Motor Speed: 1800 RPM
Physical Specifications
- Discharge Size: 3-inch
- Suction Size: 4-inch
- Pump Orientation: Can be deployed horizontally or vertically
Material Construction
- Rotor: High Chrome 28%, Ductile Iron, Stainless Steel, Duplex Stainless
- Volute Casing: High Chrome 28%, Ductile Iron, Stainless Steel, Duplex Stainless
- Shaft: Chromoly or Stainless Steel
- Mechanical Seal: Dual Tungsten Carbide or Silicon Carbide with self-contained seal flushing system
- Bearing Housing: Ductile Iron or Stainless Steel
EDDY Pump – 3 Inch HD-3000 Heavy Duty Slurry Pump – Pump Curve
PUMP CURVE
The 3-Inch EDDY Pump curve illustrates consistent flow across varying head conditions, delivering up to 780 GPM with head reaching 130 feet at 1800 RPM. Unlike conventional pumps, real-world slurry performance remains stable as solids concentration increases. The curve serves as a baseline for water and is customized for your material, ensuring accurate sizing for dense sludge, grit, and abrasive slurry applications.
Technical Drawings & Resources
Weights and dimensions for the 3-Inch HD-3000 (4×3)
Slurry Pump Models Comparison
| Model | Discharge Size | Suction Size | Flow Range (GPM) | Head Range (ft) | Solids Handling | % Solids by Weight | Production Rate (yd³/hr) | PDF  | PDF  |
|---|---|---|---|---|---|---|---|---|---|
| HD-1000 | 1 inch | 1.5 inch | 1 – 200 | Up to 170 | Up to 0.75 inch | 40–70% | 0–15 | ENG | |
| HD-2000 | 2 inch | 3 inch | 50 – 390 | Up to 90 | Up to 1.75 inches | 40–70% | 15–45 | ENG | ESP |
| HH-2000 | 2 inch | 3 inch | 100 – 600 | Up to 350 | Up to 1.75 inches | 40–70% | 25–60 | ENG | |
| HD-3000 | 3 inch | 4 inch | 100 – 780 | Up to 130 | Up to 2 inches | 40–70% | 45–75 | ENG | ESP |
| HD-4000 | 4 inch | 6 inch | 250 – 1200 | Up to 160 | Up to 3 inches | 40–70% | 75–150 | ENG | ESP |
| HD-5000 (5x5) | 5 inch | 5 inch | 400 – 1800 | Up to 225 | Up to 4 inches | 40–70% | 100–175 | ENG | |
| HD-5000 (5x6) | 5 inch | 6 inch | 400 – 1800 | Up to 225 | Up to 4 inches | 40–70% | 100–175 | ENG | |
| HD-6000 | 6 inch | 8 inch | 450 – 2500 | Up to 200 | Up to 5 inches | 40–70% | 150–200 | ENG | ESP |
| HD-8000 | 8 inch | 10 inch | 1400 – 3600 | Up to 230 | Up to 7 inches | 40–70% | 250–300 | ENG | ESP |
| HD-10000 | 10 inch | 12 inch | 1600 – 5000 | Up to 240 | Up to 9 inches | 40–70% | 300–350 | ENG | ESP |
| HD-12000 | 12 inch | 14 inch | 2600 – 7300 | Up to 180 | Up to 11 inches | 40–70% | 500–600 | ENG | ESP |
Industries Served
Mining
In mining operations, this pump moves tailings, slurry, and abrasive byproducts without clogging or excessive wear. Its ability to handle high solids concentrations makes it ideal for sump transfer, pit dewatering, and processing plant circulation where material density constantly changes.
Chemical Processing
Chemical plants rely on consistent movement of corrosive and particulate-laden fluids. The pump’s hardened materials and sealed design allow it to safely transport aggressive slurries, sludge, and waste streams without frequent breakdowns.
Sand and Aggregate
From wash plants to settling ponds, this pump transfers sand mixtures, grit, and fines with ease. It prevents clogging during peak production and keeps material flowing in high-volume, high-abrasion environments.
Oil and Gas
In drilling and production support, the pump handles drilling mud, cuttings, and waste slurry. Its compact size and rugged construction make it well-suited for mobile skids, remote sites, and harsh field conditions.
Paper and Pulp
Pulp mills use the pump to move fibrous sludge, process waste, and recycled material slurries. The non-clog design prevents buildup from stringy or sticky material that typically stalls centrifugal pumps.
Fly Ash and Coal Ash Handling
Power plants depend on reliable ash handling for environmental compliance. This pump transports dense ash slurry from hoppers and ponds without blockages, reducing cleanup labor and system downtime.
Industrial Waste and Sludge
Across manufacturing and municipal operations, the pump manages thick sludge, grit, and byproducts from tanks, pits, and separators. It ensures dependable flow in processes where conventional pumps struggle with solids-heavy waste streams.
Case Study
The Problem
A remote gold mining operation faced persistent failures while transferring tailings from a processing sump to a settling zone. The slurry carried a high percentage of sharp, abrasive solids that quickly destroyed conventional centrifugal pumps. Clogging, seal damage, and excessive wear became routine, forcing shutdowns every few weeks. Each failure halted material flow, disrupted production schedules, and required costly maintenance visits to a hard-to-reach site, making the entire tailings handling process unreliable and expensive.
The Solution
The site replaced its existing unit with the 3-inch slurry pump by EDDY Pump at the sump discharge point. Designed for extreme solids handling, the pump moved tailings at 50 to 60 percent solids without choking or overheating. Its non-clog vortex design allowed rocks and debris to pass freely, while high-chrome wear components resisted constant abrasion. The compact size fit into the existing layout, enabling a direct swap without redesigning the system.
The Result
Tailings transfer became continuous and predictable. Clogging was eliminated, maintenance intervals extended significantly, and emergency service calls stopped. The mine stabilized production flow, reduced spare parts consumption, and lowered overall operating costs. What was once a critical failure point became a dependable part of daily operations.
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 makes the 3-inch slurry pump by EDDY Pump different from centrifugal pumps?
This pump uses a patented fluid vortex design instead of tight internal clearances. Solids are moved by induced flow rather than forced through narrow passages, allowing rocks, grit, and debris to pass without clogging. This eliminates the primary failure point seen in centrifugal and vortex pumps when handling dense or abrasive slurry.
What type of material can this pump handle?
The pump is designed for sludge, slurry, grit, drilling mud, sand mixtures, mine tailings, fly ash, and other solids-laden fluids. It handles solids up to 2 inches in diameter and operates effectively in materials that range from fine silt to sharp, abrasive particles.
How much solids concentration can it handle?
The 3-inch slurry pump by EDDY Pump is engineered to move 40 to 70 percent solids by weight. Unlike conventional pumps that lose efficiency or fail as density increases, this unit maintains stable performance in thick, heavy mixtures.
What performance range does this pump offer?
It delivers flow from approximately 100 to 780 GPM with head up to 130 feet at 1800 RPM. This range makes it suitable for transfer, dewatering, and process circulation tasks in both fixed and mobile systems.
Is this pump suitable for abrasive environments?
Yes. Wear components such as the rotor and volute are available in High Chrome 28 percent and other hardened alloys. These materials are selected specifically for sand, grit, ash, and tailings applications where erosion destroys standard pump internals.
How does the sealing system protect the pump?
The pump uses a dual tungsten or silicon carbide mechanical seal with a self-contained flushing system. This prevents abrasive slurry from entering the seal faces, extending seal life and reducing unplanned maintenance.
Can the pump be installed in different orientations?
The pump can be deployed vertically or horizontally, allowing it to adapt to sumps, pits, skids, and process lines. This flexibility makes it easy to integrate into existing systems without major layout changes.
What power options are available?
The 3-inch slurry pump by EDDY Pump can be configured for electric, hydraulic, or diesel-driven systems. This allows it to operate in fixed industrial plants, remote field sites, and mobile applications.
How does it perform in continuous-duty applications?
The pump is built for sustained operation with heavy-duty bearings, reinforced housings, and balanced operating speed. It is commonly used in mining, chemical processing, and industrial waste handling where pumps must run for extended periods without failure.
How is the pump curve used in real projects?
The standard pump curve is based on water at 1800 RPM and serves as a baseline. For real-world slurry applications, EDDY Pump customizes the curve based on material type, solids concentration, and duty conditions. This ensures accurate sizing and predictable performance in dense, abrasive media.
HD (Heavy Duty) Slurry Pumps / Dredge Equipment
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