Process Pumps
EDDY Pump process pumps provide controlled hydraulic output with flow capacities from 250 to 7300 GPM and head capabilities up to 240 feet. Suction intakes ranging from 6 to 14 inches support efficient handling of abrasive slurries and high-density mixtures. The patented recessed rotor geometry preserves flow uniformity under variable load conditions, enabling consistent performance in continuous process environments.
Process Engineering Advantages
- Wide Operating Range: Supports flows from 1 to 7300 GPM and heads up to 240 feet, allowing precise integration into diverse industrial process systems.
- Low Restriction Hydraulic Path: The recessed rotor and open volute geometry reduce turbulence, maintain stable pressure distribution, and lower NPSH requirements for challenging fluids.
- High Viscosity and High Density Handling: Efficiently moves abrasive, corrosive, or high specific gravity slurries without the efficiency losses seen in conventional centrifugal pumps.
- Large Internal Pass Through: Clearances support solids handling from 0.75 to 12 inches, minimizing blockages in continuous duty operations.
- Material and Wear Resistance: Available in high chrome, stainless steel, and duplex stainless configurations to withstand abrasion, corrosion, and heavy particulate loading.
- Stable Motor Load Behavior: Consistent torque profiles reduce stress on drive systems and support smooth operation under fluctuating process conditions.
- Flexible Integration: Models spanning 1 to 12 inches in discharge size and 900 to 3600 RPM in motor speed fit a wide spectrum of industrial duty cycles.
Gallery
Process Pumps
Technical Specifications
Hydraulic Performance
Flow Capacity: 1 to 7300 GPM
Head Range: Up to 240 feet
Hydraulic Design: Patented recessed rotor and open volute geometry that lowers NPSH demand and reduces shear
Pressure Behavior: Maintains stable pressure profiles across variable viscosities and load conditions
Pump Configuration
Discharge Range: 1 to 12 inches
Suction Range: 1.5 to 14 inches
Application Profile: Built for abrasive, corrosive, high-density, and high-viscosity process fluids
Internal Geometry: Large open flow path with minimal restriction
Solids and Slurry Handling
Solids Passage: 0.75 to 12 inches
Flow Path: Large internal clearances to prevent clogging and reduce wear
Compatibility: Handles high viscosity, high specific gravity, and abrasive slurries
Operating Parameters
Speed Range: 900 to 3600 RPM
Load Characteristics: Consistent torque and motor load behavior under fluctuating conditions
Duty Cycle: Optimized for continuous industrial operation
Construction Materials
Housing and Wetted Parts: High Chrome, Ductile Iron, 316 Stainless Steel, Duplex Stainless
Performance Environment: Abrasion, corrosion, and erosion-resistant metallurgy
Service Life: Material options selected to match high wear, chemical, or slurry environments
Component Materials
Rotor: High Chrome 28 percent, Ductile Iron, Stainless Steel, Duplex Stainless
Volute Casing: High Chrome 28 percent, Ductile Iron, Stainless Steel, Duplex Stainless
Shaft Sleeve: Stainless Steel
Mechanical Seal: Tungsten or Silicon Carbide with self contained seal support system
Motor Mount: Ductile Iron or Stainless Steel
Comparison Table
| Model | Discharge Size | Suction Size | Min Flow (GPM) | Max Flow (GPM) | Head Range (ft) | Solids Handling (inch) | Motor Speed (RPM) | Percent Solids | Notes |
|---|---|---|---|---|---|---|---|---|---|
| HD1000 (1 inch) | 1 inch | 1.5 inch | 1 | 200 | Up to 170 | 0.75 | 1800 / 3600 | 40 to 70 percent | Smallest unit, precision slurry pumping |
| HD2000 (2 inch) | 2 inch | 3 inch | 50 | 390 | Up to 90 | 1.75 | 1800 | 40 to 70 percent | Production 15 to 45 yd³/hr |
| HD3000 (3 inch) | 3 inch | 4 inch | 100 | 780 | Up to 130 | 3 | 1800 | 40 to 70 percent | Larger solids capacity for mid-scale pumping |
| HD4000 (4 inch) | 4 inch | 6 inch | 250 | 2100 | Up to 160 | 4 | 1800 | 40 to 70 percent | High flow industrial performance |
| HD5000 (5x5) | 5 inch | 5 inch | 400 | 1800 | Up to 225 | 5 | 1800 | 40 to 70 percent | Balanced suction and discharge for consistent lift |
| HD5000 (6x5) | 5 inch | 6 inch | 400 | 1800 | Up to 225 | 5 | 1800 | 40 to 70 percent | Higher suction capacity variant |
| HD6000 (6 inch) | 6 inch | 8 inch | 450 | 2500 | Up to 200 | 6 | 1800 | 40 to 70 percent | Heavy-duty high-head application pump |
| HD8000 (8 inch) | 8 inch | 10 inch | 1400 | 3600 | Up to 230 | 8 | 1200 | 40 to 70 percent | Large flow capacity at lower RPM |
| HD10000 (10 inch) | 10 inch | 12 inch | 1600 | 5000 | Up to 240 | 10 | 1200 | 40 to 70 percent | High production for large-scale dredging |
| HD12000 (12 inch) | 12 inch | 14 inch | 2600 | 7300 | Up to 180 | 12 | 900 | 40 to 70 percent | Largest model, maximum solids throughput |
Industries Served
Mining and Mineral Processing
Supports continuous transfer of abrasive slurries, tailings, and high specific gravity ore mixtures. The recessed rotor design maintains flow stability in circuits where particle size, density variation, and high wear conditions demand consistent hydraulic performance.
Chemical Processing and Refining
Suitable for corrosive, high viscosity, or chemically reactive fluids that require controlled shear and predictable pressure profiles. Material options such as stainless steel and duplex alloys ensure durability in aggressive chemical environments.
Oil and Gas Drilling and Production
Effectively handles drilling mud, produced water, cuttings-laden fluids, and solids-rich waste streams. Stable torque behavior supports uninterrupted operation in both upstream and midstream processing systems.
Pulp, Paper, and Biomass Slurries
Efficiently moves fibrous slurries, pulping residues, and thickened biomass without clogging. The open flow path prevents fiber entanglement and maintains uniform movement through processing stages.
Wastewater, Sludge, and Industrial Effluent Management
Designed for thick sludge, grit-heavy flows, and variable solids concentrations common in municipal and industrial treatment plants. High solids tolerance reduces downtime caused by blockages or excessive shear.
Sand, Aggregate, and Construction Material Transport
Handles sand-water mixtures, abrasive aggregates, and construction process slurries with minimal wear. Large solids passage accommodates variable particle profiles in dredging, tunneling, and material reclamation applications.
Power Generation and Ash Handling Systems
Built for demanding fly ash, bottom ash, and combustion byproduct transport. Robust metallurgy supports long service life in high-abrasion circuits with continuous duty requirements.
Chemical Plant Achieves Stable Viscous Fluid Transfer with Reduced Maintenance
Case Study
Problem
A specialty chemical plant was struggling to maintain a stable transfer of a corrosive, high-viscosity process stream. Their existing centrifugal pumps experienced rapid mechanical seal wear, pressure fluctuations, and shear-related fluid degradation. Variations in viscosity and the presence of fine abrasive solids led to erratic motor loads, frequent downtime, and inconsistent feed rates into downstream reactors, disrupting overall process stability.
Solution
The facility replaced its legacy pumps with EDDY Pump process models built in stainless steel and duplex alloys suited for corrosive fluid handling. The recessed rotor and open volute geometry allowed the viscous mixture to move through the pump chamber with reduced shear and lower NPSH demand. The upgraded mechanical seal system, incorporating tungsten or silicon carbide faces with a self-contained seal support arrangement, maintained seal cooling and lubrication even under high viscosity operating conditions.
Result
After integration, the plant experienced stable flow behavior across the full viscosity range, improved seal life, and significantly reduced wear on wetted components. Pressure output remained consistent, eliminating the flow instability that previously affected downstream reactors. Maintenance intervention frequency dropped, operating costs decreased, and overall process reliability improved across continuous production cycles.
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If you need assistance with pump selection, sales or engineering support, call 619-404-1916.
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Frequently Asked Questions
What makes the EDDY process pump different from traditional centrifugal pumps?
EDDY Pump process pumps use a recessed rotor and open volute design that eliminates the tight internal tolerances found in standard centrifugal pumps. This geometry minimizes shear, reduces internal turbulence, and lowers the likelihood of clogging. As a result, the pump maintains stable hydraulic performance when handling high solids, high-viscosity, or high-specific-gravity fluids that conventional pumps struggle to move efficiently.
What flow and head ranges do the process pumps cover?
The process pump lineup spans flow capacities from 1 to 7300 GPM and supports head requirements up to 240 feet. This broad operating envelope allows the pumps to serve in low-flow metering applications and large-scale process transfer systems. The wide range also allows matching pump performance closely to system curves for optimal efficiency.
Can these pumps handle high viscosity or high specific gravity fluids?
Yes. The hydraulic pathway inside the pump is designed to move dense or viscous materials without creating excessive resistance. The recessed rotor reduces shear exposure and prevents the pump from thinning or damaging shear-sensitive fluids. High-density slurries, thickened process streams, and settled solids mixtures can be transferred with consistent motor loading and minimal performance loss.
What solid size can the pumps pass without clogging?
Depending on the model, the pumps can pass solids from 0.75 inches up to 12 inches. The internal flow path is wide and unobstructed, allowing large particle material to move through the pump without becoming trapped. This capability reduces downtime related to clearing blockages and is especially valuable in abrasive or variable-solids applications.
What material options are available for corrosive or abrasive applications?
Material selections include High Chrome 28 percent, Ductile Iron, 316 Stainless Steel, and Duplex Stainless Steel. These options allow the pump to be configured for environments with high abrasion, chemical exposure, or combined wear mechanisms. The correct alloy selection improves service life and ensures the pump remains stable under continuous duty operation.
How do the pumps maintain stable performance under fluctuating process conditions?
The pump design maintains a uniform pressure distribution inside the volute, which prevents sudden spikes in torque or flow rate. This stability ensures predictable behavior when viscosity, solids concentration, or process temperature changes. Consistent hydraulic performance also reduces stress on drive systems and mechanical seals, improving overall system reliability.
What mechanical seal options are available?
The pumps use tungsten or silicon carbide mechanical seals supported by a self-contained seal support system. This system maintains controlled lubrication and temperature levels around the seal faces, preventing premature wear, even when pumping abrasive or high-viscosity materials. The design increases seal reliability in applications where conventional seals would fail due to heat or the intrusion of solids.
What industries commonly use these process pumps?
The pumps are used in mining, chemical manufacturing, oil and gas drilling, pulp and paper processing, wastewater treatment, construction materials handling, and power generation. These industries rely on pumps that can handle abrasive slurries, corrosive fluids, fibrous materials, and sludge streams while maintaining stable and continuous operation.
Are these pumps suitable for continuous duty operation?
Yes. The hydraulic efficiency, low-restriction flow path, and durable metallurgy make the pumps suitable for long-duration, continuous-duty operation. Their stable motor load behavior reduces mechanical stress and extends component life, making them an appropriate choice for plants that operate around the clock or under constant load.
How do I select the right process pump model for my application?
Pump selection requires understanding the system’s flow rate, head requirements, solids size, fluid viscosity, and chemical properties. Matching these parameters with the correct pump size, material choice, and operating speed ensures long-term reliability. Engineering review of the process conditions helps confirm the appropriate model and configuration for optimal performance.
HD (Heavy Duty) Slurry Pumps / Dredge Equipment
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