Self-Priming Slurry Pumps
EDDY self-priming slurry pumps are able to draw liquid into their suction hose, even if the pump and the liquid are not already submerged in the liquid.
Our self-priming slurry pumps are specifically designed for handling heavy-duty industrial and mining applications where a consistent flow of abrasive and corrosive materials is required. The unique design of the pumps allows them to self-prime, eliminating the need for a separate priming system and reducing downtime.
Constructed with durable materials such as high-chromium alloys, our self-priming slurry pumps ensure a long service life with minimal maintenance. They are also able to operate in a wide range of temperatures and pressures, making them suitable for a variety of industrial applications.
To know everything about diesel engine-driven self-priming pumps, check out our blog here.
Self-Priming Slurry Pump Guide
Compare specifications
| Model | Size | Power | Flow Rate | Head | PDF  |
|---|---|---|---|---|---|
| 3-Inch 43HP Self-Priming Pump (Diesel) | 3-inch | 43 HP | 100 - 780 GPM | up to 130 ft | ENG |
| 4-Inch 43HP Self Priming Pump (Diesel) | 4-inch | 43 HP | 250 - 1200 GPM | up to 200 ft | ENG |
| 4-Inch 115HP Self Priming Pump (Diesel) | 4-inch | 115 HP | 250 - 1200 GPM | up to 200 ft | ENG |
| 6-Inch 115HP Self Priming Pump (Diesel) | 6-inch | 115 HP | 450-2000 GPM | up to 200 ft | ENG |
| 6-Inch 173HP Self Priming Pump (Diesel) | 6-inch | 173 HP | 450 - 2000 GPM | up to 200 ft | ENG |
| 8-Inch 550HP Self Priming Pump (Diesel) | 8-inch | 550 HP | 1400 - 3600 GPM | up to 230 ft | ENG |
| 10-Inch 550HP Self Priming Pump (Diesel) | 10-inch | 550 HP | 1600 - 5000 GPM | up to 240 ft | ENG |
| 12-Inch 700HP Self Priming Pump (Diesel) | 12-inch | 700 HP | 2600 - 7300 GPM | up to 180 ft | ENG |
ANY SELF PRIMING PUMP CAN DELIVER
But Only the EDDY Self-Priming Slurry Pump Can Move Solids That Destroy All Other Pumps.
PUMP HIGHLY VISCOUS MATERIALS WITH LOW DOWNTIME
The diesel driven self-priming pump incorporates a vacuum-assisted priming unit with the pump. This fills the pump with slurry or target material, which allows the main EDDY Pump to work.
DRY PRIME CAPABILITY WITH UNIQUE SEAL SUPPORT SYSTEM
Most EDDY Pumps are submersible; however, with a self-priming unit, the pump and power unit are not submerged. The suction hose goes into the slurry, making the unit like a super-sized wet vacuum.
MAIN APPLICATIONS:
Mining, Sand/Agg, Sewage/Wastewater, Chemical, Irrigation, Sump Pit Cleanouts, Digester Tanks, Dewatering, and More!
Self-Priming Slurry Pump DEPLOYEMENT
Skid Mounted Self-Priming Slurry Pump
A skid-mounted self-priming slurry pump is a pump that is mounted on a skid or platform. Skid-mounted pumps are designed to be fully self-contained and pre-piped, which makes the installation process much simpler and faster. This can help to reduce downtime and minimize the costs associated with installing a new pumping system.
These pumps are often used in applications where it is not practical or possible to use a traditional pump, such as in remote locations or where there is limited access to power.
Trailer Mounted Self-Priming Slurry Pump
A trailer-mounted self-priming slurry pump is a pump that is mounted on a trailer. The trailer-mounted design makes it easy to transport the pump to different locations as needed.
Trailer-mounted pumps are cost-effective as they combine mobility and versatility, with an efficient and powerful pumping system in one compact unit, which eliminates the need for additional components and accessories.
Self-Priming Slurry Pumps Advantage
- EDDY Power in a Self-Priming Package
- Secondary Vacuum Pump Allows Constant Priming
- Works Like a Giant Wet Vac
- Move 30-70% Solids
- Powered by Electric or Diesel
- Non-Clog, High Viscosity, High Specific Gravity,
High Abrasives, Low pH Pumping Design - Easily Process Rags, String, Rocks and Foreign Objects That Frequently Clog Other Pumps
- Multiple Mounting Options (Skid, Trailer, Stationary)
Why Self-Priming Slurry Pumps are better – highlights
This video shows how EDDY Pump beats out traditional centrifugal pumps regarding tough slurry and abrasive materials. EDDY Pump is at the heart of our featured dredge pump equipment, including the Remote Operated Subdredge, Diver Operated Pump, and the Excavator Attachment Dredge Pump. More Videos HERE.
What Is A Self-priming Slurry Pump?
A self-priming slurry pump can pump liquids and solids without needing a separate priming pump. These pumps are designed with an internal air chamber that allows them to draw in air and liquid, creating a partial vacuum that helps prime the pump. This eliminates the need for a separate priming pump, which can be expensive and time-consuming.
Self-priming slurry pumps are commonly used in various industries, including mining, oil and gas, chemical processing, and wastewater treatment. They are instrumental in applications where the suction lift (the vertical distance the pump must lift the slurry from the source to the pump) is relatively high, as traditional slurry pumps may struggle to raise the slurry on their own.
Self-priming slurry pumps are typically more expensive than traditional slurry pumps. Still, they can offer significant cost savings in the long run by eliminating the need for a separate priming pump. They are also typically more reliable and easier to maintain than traditional slurry pumps, as they do not require frequent priming and de-priming.
Applications for Self-Priming Slurry Pumps
EDDY self priming slurry pumps are versatile and efficient pumping solutions designed to handle a wide range of fluids containing solids, making them suitable for various industrial applications. The EDDY self priming pump’s features eliminate the need for external priming systems, making these pumps particularly advantageous in scenarios where initial priming can be challenging. Some of the main applications for EDDY self priming slurry pumps include the following:
Construction Dewatering: EDDY self priming slurry pumps are used for dewatering construction sites, excavations, and foundation pits, removing water and slurries to facilitate construction activities.
Due to their ability to handle water mixed with solids efficiently, construction dewatering extensively utilizes EDDY self priming pumps. Construction dewatering involves the removal of excess water from construction sites, excavations, foundation pits, and other areas where water accumulation can hinder construction activities. Here are some detailed applications for EDDY self priming slurry pumps in construction dewatering:
Excavation Dewatering: During excavation for foundations, basements, or underground utilities, EDDY self priming slurry pumps remove water seeping into the crater, keeping the site dry and safe for construction workers.
Foundation Pit Dewatering: When constructing below-grade structures, such as basements or underground parking garages, EDDY self priming slurry pumps drain water from the foundation pits, allowing construction to proceed without water-related delays.
Tunneling and Mining: In tunneling and mining operations, EDDY self priming slurry pumps are used for dewatering tunnel shafts and mining pits, ensuring a safe working environment for workers and equipment.
Road and Highway Construction: EDDY self priming pumps drain water from construction sites and highway underpasses, preventing flooding and ensuring stable ground conditions for construction.
Pipeline Trench Dewatering: During pipeline installation, construction crews employ EDDY self priming pumps to dewater the trenches, facilitating pipe laying and backfilling.
Land Reclamation: EDDY self priming slurry pumps are used in land reclamation projects to remove excess water and create usable land areas for construction and development.
Construction Site Flooding: In heavy rain or unexpected flooding, EDDY self priming pumps can quickly remove water from construction sites, minimizing damage and disruptions.
Wellpoint Dewatering: EDDY self priming slurry pumps find usage in wellpoint dewatering systems, where contractors install a series of wellpoints to lower the groundwater level and create a dry working area.
Concrete Pouring and Curing: Field operators use EDDY self priming pumps to dewater areas before pouring concrete and during curing. This ensures proper concrete bonding and prevents water-related issues.
Trenchless Construction: In trenchless construction methods, such as horizontal directional drilling (HDD) and microtunneling, EDDY self priming slurry pumps handle the drilling fluid and assist in dewatering the drilling area.
Slope Stability and Erosion Control: EDDY self priming pumps can remove excess water from slopes and embankments to maintain slope stability and prevent erosion during construction.
Coastal and Marine Construction: In coastal construction projects, such as building sea walls or constructing offshore structures, EDDY self priming pumps assist in dewatering the construction area.
The efficiency of EDDY self priming slurry pumps in handling water mixed with solids makes them ideal for construction dewatering, where timely and effective removal of slurry and water is essential for safe and smooth construction operations. Their ability to handle abrasive and high-solids content fluids ensures reliable performance in challenging construction environments. When selecting an EDDY self priming pump for construction dewatering, operators should consider factors such as pump capacity, head, and construction materials based on specific requirements and site conditions.
Benefits of EDDY Pump for Excavation Dewatering:
EDDY self priming pumps offer several benefits for excavation dewatering on a construction site. Their specific design, which enables them to handle water mixed with solids, makes EDDY self priming slurry pumps well-suited for efficiently removing water and sediments from excavations. Here are the detailed benefits of using an EDDY self priming slurry pump for excavation dewatering:
- Ease of Priming: The EDDY self priming pump’s feature allows the pump to automatically remove air from the suction line and prime itself, eliminating manual priming or additional priming equipment. This makes the pump easy to start and operate, reducing setup time and increasing overall efficiency.
- Efficient Dewatering: EDDY self-priming slurry pumps are highly efficient in handling water mixed with solids, ensuring quick and effective dewatering of excavation sites. They can easily handle abrasive slurries and sediments, including sand, silt, and gravel.
- Quick Startup and Shutdown: The EDDY self priming capability enables the pump to start and stop quickly, providing immediate dewatering when needed and conserving energy during periods of reduced water accumulation.
- Versatility: EDDY self priming slurry pumps are versatile and can handle a wide range of fluids, including water with high solids, making them suitable for various excavation dewatering applications.
- High Solids Handling Capacity: The Eddy self priming slurry pumps’ design enables them to handle fluids containing solids, including sediments and debris, without clogging or damage, ensuring continuous and reliable operation.
- Simplified Installation: The EDDY self priming pump’s feature eliminates the need for external priming systems or manual priming, simplifying the pump installation process and reducing the overall equipment footprint on the construction site.
- Continuous Operation: EDDY self priming slurry pumps can continuously operate, ensuring constant dewatering to maintain a dry and safe working environment throughout excavation.
- Reduced Risk of Cavitation: The EDDY self priming capability helps maintain proper pump suction and reduces the risk of cavitation, which can damage the pump and decrease its efficiency.
- Minimal Maintenance: These pumps have a simple design with fewer moving parts, reducing maintenance requirements and downtime and saving time and maintenance costs during construction projects.
- High Pumping Efficiency: EDDY self priming slurry pumps are designed for high efficiency and performance, ensuring maximum fluid transfer and minimizing energy consumption during dewatering operations.
- Ability to Handle Varying Water Levels: EDDY self priming slurry pumps can efficiently handle fluctuating water levels in the excavation, maintaining proper dewatering even during changes in water accumulation.
- Safety and Stability: Proper dewatering with EDDY self priming pumps enhances construction site safety by reducing the risk of water-related accidents and ensuring a stable working environment for construction equipment and personnel.
- Reduced Water Treatment Costs: EDDY self priming slurry pumps enable efficient excavation dewatering, reducing the water volume that requires treatment. This results in significant cost savings for water management and treatment processes.
In summary, EDDY self priming slurry pumps provide reliable and efficient dewatering solutions for excavation on construction sites. Their ease of priming, high solids handling capacity, versatility, and low maintenance requirements make them valuable assets for ensuring a dry and safe working environment during construction projects. When selecting an EDDY self priming slurry pump for excavation dewatering, it’s crucial to consider factors such as pump capacity, head, and materials of construction to match the specific requirements and conditions of the construction site.
Industry specific uses of Self Priming Slurry Pumps:
Mining and Quarrying:
These pumps handle abrasive slurries in mining and quarrying operations, including dewatering mine pits, transferring tailings, and transporting ore slurries.
EDDY self priming slurry pumps find numerous applications in the mining and quarrying industries, where they efficiently handle abrasive slurries and solids-laden fluids. The robust construction and EDDY self priming capability make these pumps essential for mining and quarrying operations. Here are some detailed applications for EDDY self priming slurry pumps in mining and quarrying:
Mine Dewatering: EDDY self priming slurry pumps are used for mine dewatering to remove excess water from underground mining pits and tunnels, maintaining a safe and dry working environment.
Tailings Transfer: In mining operations, EDDY self priming slurry pumps transfer tailings, the leftover fine particles, and water after extracting minerals to designated tailings ponds or disposal sites.
Slurry Transport: EDDY self priming slurry pumps handle abrasive slurries containing minerals and ores, transporting them between different processing stages within the mine.
Pit and Quarry Dewatering: EDDY self priming slurry pumps in open-pit mines and quarries are used to dewater the excavation sites, prevent flooding, and ensure continuous mining operations.
Quarry Slurry Transport: EDDY self priming pumps transfer quarry materials, including sand, gravel, and crushed stones, from the quarry to processing plants or stockpiles.
Slurry Mixing: In mining and quarrying processes, EDDY self priming slurry pumps mix and agitate slurry materials, ensuring proper blending and uniform distribution of solids.
Hydraulic Backfilling: EDDY self priming slurry pumps handle the slurry used for hydraulic backfilling in underground mines, where the slurry is pumped into mined-out areas to support the ground and fill voids.
Cyclone Feed Pumping: In mineral processing plants, EDDY self priming slurry pumps feed cyclones, which separate fine particles from the slurry.
Sump Pumping: EDDY self priming slurry pumps handle water and slurry accumulated in sumps and sump pits in mining and quarrying facilities.
Waste Slurry Transfer: They transfer waste slurry and reject materials to designated disposal areas or tailings ponds.
Dredging and Sand Extraction: EDDY self priming slurry pumps are utilized for dredging and sand extraction in mining and quarrying operations.
Conveyor Belt Washing: EDDY self priming slurry pumps are used to wash conveyor belts in mining and quarrying facilities, removing material buildup and ensuring smooth operation.
Aggregate Processing: They handle slurry materials in aggregate processing plants, including sand washing and screening applications.
Mine Sump Cleaning: EDDY self priming pumps clean and remove settled solids from mine sumps and pits.
Effluent Transfer: They handle wastewater and effluent from mining and quarrying processes, transferring it for treatment or disposal.
The ability of EDDY self priming slurry pumps to handle abrasive slurries and solids makes them indispensable in the mining and quarrying industries, where reliable and efficient fluid handling is crucial for safe and productive operations. When selecting an EDDY self priming slurry pump for mining and quarrying applications, factors such as pump capacity, head, and construction materials should be considered based on specific requirements and site conditions.
Sand and Gravel Extraction:
EDDY self priming slurry pumps are employed in sand and gravel extraction projects, efficiently transferring sediment-laden slurries.
EDDY self priming slurry pumps are highly effective in sand and gravel extraction operations, specifically designed to handle abrasive slurries and solids-laden fluids. Their EDDY self priming capability allows for easy and quick startup, making them well-suited for applications where initial priming can be challenging. Here are some detailed applications for EDDY self priming pumps in sand and gravel extraction:
Sand and Gravel Dredging: EDDY self priming slurry pumps are used in dredging operations to extract sand and gravel from underwater deposits and transport them to processing or stockpile areas.
River and Lake Dredging: They are employed in dredging rivers, lakes, and other water bodies to remove sand and gravel deposits and maintain waterways’ navigability.
Sand and Gravel Washing: EDDY self priming slurry pumps handle water and slurry mixtures used in sand and gravel washing and screening processes, separating and cleaning the materials.
Quarry Material Handling: They transfer sand and gravel materials from quarry sites to processing plants, stockpiles, or loadout points.
Silt Removal: EDDY self priming slurry pumps are used for silt removal from ponds, lakes, and sedimentation basins, maintaining their capacity and preventing siltation.
Pit Dewatering: In sand and gravel extraction pits, EDDY self priming slurry pumps remove water, allowing continuous and efficient extraction operations.
Beach Nourishment: EDDY self priming pumps handle sand from offshore locations and pump it onto eroded beaches to replenish and restore the coastline.
Sand Reclamation: In foundries and other industrial processes, EDDY self priming slurry pumps are used to reclaim sand from molds and castings for reuse.
Land Reclamation: They are utilized in land reclamation projects to remove sand and gravel from underwater locations, creating usable land areas.
Aggregate Processing: EDDY self priming slurry pumps handle slurries in aggregate processing plants, including sand washing and screening applications.
Hydraulic Fill Operations: In hydraulic fill operations, where sand and gravel slurry fill voids and create land, EDDY self priming slurry pumps transfer the slurry to the designated areas.
Tailings Transport: EDDY self priming slurry pumps transfer tailings and waste materials from sand and gravel processing plants to designated disposal or storage areas.
Pond and Lagoon Cleaning: They remove sediment, sand, and gravel from ponds and lagoons, ensuring proper water management and preventing siltation.
Conveyor Belt Cleaning: EDDY self priming slurry pumps wash conveyor belts, removing sand and gravel buildup to maintain smooth conveyor operation.
Slurry Mixing and Agitation: In sand and gravel processing, EDDY self priming slurry pumps assist in mixing and agitating the slurry for proper blending and uniform distribution of solids.
The ability of EDDY self priming pumps to handle abrasive slurries and solids makes them essential in sand and gravel extraction, where efficient fluid handling is crucial for productivity and profitability. When selecting an EDDY self priming slurry pump for sand and gravel extraction applications, factors such as pump capacity, head, and construction materials should be considered based on specific requirements and site conditions.
Industrial Waste Handling:
They are used for handling industrial waste, including wastewater, sludges, and industrial by-products.
Municipal Wastewater Treatment:
EDDY self priming slurry pumps handle raw sewage, sludge, and grit in municipal wastewater treatment plants.
Dredging and Reclamation:
They are utilized in small-scale dredging and land reclamation projects, removing sediment and silt from water bodies.
Marine and Offshore Applications:
EDDY self priming slurry pumps are used in marine environments for bilge pumping, deck washing, and water transfer.
Aggregate Processing:
They handle slurries in aggregate processing plants, including sand washing and screening applications.
Paper and Pulp Industry:
EDDY self priming slurry pumps handle pulp stock, black liquor, and other slurries in the paper and pulp manufacturing process.
Food and Beverage Industry:
They are employed in the food and beverage industry for handling slurries, fruit pulps, and waste materials.
Chemical Processing:
EDDY self priming slurry pumps transfer chemicals, slurries, and abrasive mixtures in chemical processing plants.
Power Plant Ash Handling:
They handle ash and slurry in power plant fly ash handling systems.
Cement and Concrete Industry:
EDDY self priming slurry pumps transfer cement slurries, fly ash, and other cementitious materials.
Emergency Flood Control:
They can be deployed for emergency flood control, pumping out flooded areas efficiently.
Oil and Gas Industry:
EDDY self priming slurry pumps are used in oil and gas exploration and production for transferring drilling mud and handling drilling waste.
The ability to handle slurries and solids, combined with the convenience of EDDY self priming pumps, makes these pumps valuable assets in numerous industries and applications. Their robust design and efficient performance contribute to cost-effective and reliable fluid handling in challenging environments. When selecting an EDDY self priming slurry pump for specific applications, it’s essential to consider the particular requirements, construction materials, and compatibility with the fluids encountered.
Issues with Self-Priming Slurry Pumps
Self-priming centrifugal pumps experience many issues when pumping slurry or debris-laden liquids. Some common problems that may occur with self-priming slurry pumps include the following:
- Clogging: Self-priming slurry pumps can become clogged if the slurry contains too many solids or if the pump needs to be sized correctly for the application. This can reduce the efficiency of the pump and may require frequent maintenance.
- Cavitation: Cavitation occurs when the pump’s suction becomes too low, causing air bubbles in the slurry. These bubbles can collapse and create high-pressure areas that damage the pump’s impeller and other components.
- Wear and tear: Self-priming slurry pumps are designed to handle abrasive and corrosive slurries, but over time, the constant exposure to these materials can cause wear and tear on the pump’s components. This can reduce the pump’s efficiency and require frequent maintenance or repairs.
- Air leakage: If the air chamber in a self-priming slurry pump develops a leak, it may be unable to create a partial vacuum and prime the pump. This can reduce the efficiency of the pump and may require repairs.
The EDDY Pump’s patented design significantly lowers the chances of these issues occurring, saving a large amount of downtime and the high cost of repairs.
Self-Priming Slurry Pumps FOR DEWATERING
This Video shows a smaller electric 3-Inch EDDY Self-Prime flowing at 400 GPM (2 cu yd) of slurry at distances of 400 ft in under a minute.
4-inch and 6-inch Diesel Trailer Units Are Most Popular
The core of this design is the patented EDDY Pump technology. The design redefines the pumping industry by being the only pump that utilizes the principles of a tornado to create a synchronized eddy current. This pump is not a centrifugal, positive displacement, or vortex pump but the most highly efficient high solids and high specific gravity pump on the market.
An ideal system for pumping the most viscous and heavy materials without clogging or having significant downtime. Lower downtime and maintenance issues versus conventional centrifugal or positive displacement pumps will save your project money. Pump size options range from the 2-inch slurry pump to a 12-inch option. Our system handles pumping distances over 3500 feet and production rates up to 4000 GPM.
SELF-PRIME FLEET RETROFITS
Get EDDY Pump Technology in a Diesel Self-Prime Format.
Boost your Solids Pumping Production!
We understand the importance of maintaining efficient and reliable operations, but sometimes older pump systems can become a bottleneck. That’s why we offer to retrofit services to upgrade your existing pumps to state-of-the-art EDDY Pumps.
EDDY Pumps are known for their ability to handle abrasive and corrosive materials with ease, making them perfect for a variety of industrial and mining applications. The unique design of the pump’s impeller and volute allows it to handle a high percentage of solids, without clogging or jamming.
Retrofitting your old pump with an EDDY Pump can increase efficiency and performance, while also reducing downtime and maintenance costs. Our team of experts will work with you to determine the best retrofit solution for your specific needs, ensuring a seamless and efficient upgrade process.
EXCAVATOR ALTERNATIVE DEPLOYMENT
SELF-PRIME EXCAVATOR CONFIGURATION
Unlock maximum efficiency and power with our self-priming pump and EDDY Pump excavator attachment combo!
Our self-priming pumps are specially designed to handle heavy-duty industrial and mining applications where a consistent flow of abrasive and corrosive materials is required. The unique design of the pumps allows them to self-prime, eliminating the need for a separate priming system and reducing downtime.
When combined with our EDDY Pump excavator attachment, the result is a powerful and efficient pumping system that can handle the most demanding conditions. The EDDY Pump excavator attachment is specifically designed to be attached to an excavator’s arm, allowing for easy mobility and versatile use on different sites. This unique design allows the pump to handle high percentages of solids and debris without clogging or jamming, which is perfect for mining, dredging, and other industrial applications.
This combination of self-priming pump and EDDY pump excavator attachment allows for maximum efficiency and performance in any harsh environment and allows you to save time and resources while reducing downtime and maintenance costs.
Self-Prime Recirculation Pump System
Keeping viscous slurries mixed helps prevent the settling of high solids sludge and slurries with low downtimes. Learn more…
Keep your holding tanks clean and efficient with our NOEX® recirculation pump system!
Holding tanks are an essential part of many industrial and commercial operations, but keeping them clean and maintaining the quality of the liquid stored can be a challenging task. Our recirculation pumps offer a solution to this problem by continuously circulating the liquid in the tank, promoting a homogenous mixture and reducing the risk of sedimentation and corrosion.
Our NOEX® Slurry Recirculation Pumps are designed for heavy-duty use and can handle a wide range of liquids including abrasive and corrosive fluids. The pumps are constructed with durable materials, such as high-chromium alloys, to ensure a long service life and minimal maintenance. The pumps are also customizable, with a variety of options available to suit your specific needs.
HD (Heavy Duty) Slurry Pumps
HD (Heavy Duty) Slurry Pumps
Dredge Pumps, Process, Slurry and Marine Pumps
And Dredging Equipment OEM
Why EDDY Pumps Are Better
How The EDDY Pump Works
We are a US dredge equipment and commercial slurry pump manufacturer. Only EDDY Pump equipment is sold here.
EDDY Pumps patented pump technology outperforms all centrifugal, vortex and positive displacement pumps in a variety of the most challenging pumping applications, especially pumping applications moving 40-70% solids. Our pump design allows for longer intervals between maintenance, which translates to increased output, uptime, and higher profits. Learn more about our products below, and pick a product line that fits your project needs.
Call us at 619-404-1916 if you need assistance.
ALL OF OUR EQUIPMENT IS POWERED BY THE EDDY PUMP
One Pump for Process, Slurry, Sludge, Wastewater, and Dredging.
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Rent or Buy, Excavator Attachment Pumps and Slurry Pumps for Dredging.
Applications Include: Sand & Gravel, Mining, Commercial Food Processing, Sewage, Waste Water and Drilling Mud.