Learn how the self-priming EDDY Pump outperforms traditional centrifugal pumps.
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When someone refers to a pump being self-priming they mean that, before there is fluid running through the pump (dry), the pump draws the initial fluid into the inlet port of the pump, then pumps that fluid through the pump and downstream to its final destination.
The key to designing a self-priming pump is creating the ability for the pump to pull a vacuum at the inlet port where the fluid enters the wetted housing (volute). Self-priming pumps utilize centrifugal pump technology to automatically evacuate air from the suction line, enabling them to establish a liquid flow without manual intervention. The vacuum at the inlet port of the pump is what draws the fluid into the pump so that the fluid can be pumped downstream. The pump casing plays a crucial role in creating this vacuum and retaining liquid, ensuring a gas-tight seal and preventing air from returning from the discharge line to the suction line.
The process of how the EDDY Pump creates a vacuum at the inlet port of the pump originates from the spinning of the rotor inside the pump. As the rotor spins it creates turbulence, which in turn creates a vortex. The vortex creates a low pressure area that, in turn, develops what is referred to as vacuum. This vacuum is what makes the EDDY Pump self-priming. Initial priming is required before the pump can automatically evacuate air and establish efficient operation.
Most EDDY Pumps are submersible, as opposed to a self-priming unit in which the pump and power unit are not submerged. The suction hose attached to the inlet port of the EDDY Pump goes into the material to be pumped – the unit acts like a super-sized wet vacuum that draws the material into the pump, and pumps the material downstream to its final destination. EDDY self-priming pumps are easily mounted to trailers or skids which allows for increased mobility, making it simple to pump out multiple large pits or sumps with the ability to easily handle solid, abrasive, or corrosive material.
EDDY Pumps are very versatile and designed to be applied to a very broad range of pump applications. EDDY Pumps excel in extremely difficult applications, and are specifically suited for pumping slurry, high solids, extremely viscous material, paste, high abrasives (sand & gravel) and material filled with solids. Even though EDDY Pumps are used for a wide range of pump applications, there are specifics to consider when using any industrial pump.
The following are some specifics when installing an industrial pump into an application.
If you need help with pump selection, sales or engineering support, call 619-404-.
Net Positive Suction Head (NPSH) is an important consideration when trying to avoid cavitation. Cavitation can cause damage to the internal components of a pump (seals, rotors, bearings, etc.), and also hinder pump performance. Cavitation is a condition where the fluid entering a pump changes to a vapor. Ensuring that liquid can effectively enter the pump prevents cavitation by maintaining a continuous flow of liquid, which avoids the formation of vapor pockets.
NPSHa is the absolute NPSH required at the inlet port of the pump. NPSHr is the required NPSH at the inlet port of the pump. When NPSHa is less than NPSHr cavitation will occur. Oftentimes, this is a result of the vacuum (suction) at the inlet port of the pump being too high. This condition is more common on centrifugal pumps, but can be inherent in the operation of other pumps as well. In extreme situations it can cause a pump to lose its prime, but most often causes areas in the wetted path of the pump to become void of fluid and the pump to run dry. Maintaining an airtight suction line is crucial to prevent air ingress and ensure effective priming.
Avoiding issues due to NPSH and cavitation can reduce the cost associated with mechanical failures and hindrances of performance of the pump which can equate to greater production, less product downtime, and reduced cost in pump maintenance.
A self-priming EDDY Pump can be used for a wide range of applications in various industries. Some examples include:
Due to their unique design, there are several advantages to using a self-priming EDDY Pump. Some of the advantages include:
Optimal Performance. Built for pumping the toughest of materials including high viscosity liquids, high-solids content slurries with a non-clogging design. The pumping action results from the rotational energy transferred from the impeller to the liquid.
This type of pump can remove air on its own and continue operation without assistance. However, it will not operate when dry, highlighting the importance of maintaining proper liquid levels.
The EDDY Pump can pump solids that are almost the size of the inlet port of the pump, no matter what size EDDY Pump.
The EDDY Pump can be used in submersible, flooded suction, and application where the pump is positioned above the fluid to be pumped.
The pump can self-prime without the use of vacuum assistance. Additionally, it can re-prime during operation after its initial filling, offering high efficiency and construction benefits.
Pump & Dredging
The fluid to be pumped with flooded suction pumps is positioned above the pump. With the pump positioned below, gravity can feed the fluid into the pump’s suction and keep the pump primed.
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Pumps that are completely submerged in the liquid are called submersible pumps. By being submerged in the fluid to be pumped, there is no need for priming the pump.
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With a self-priming unit, the pump and power unit are not submerged. The suction hose goes into the slurry and the unit acts like a super-sized wet dry vacuum. Can be trailer mounted for added mobility.
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Are you interested in learning more about Mobile Trailer Mounted Self Priming Pumps? Contact us today to secure an expert consultation!
Many industrial operations such as drilling, paper/pulp, manufacturing, and mining have waste that must be processed and removed on a regular basis. The solution for a lot of these companies is to continually hire vacuum truck services in order to clean and remove waste material from tanks, sumps, and pits. This costly process can now be done in-house for a fraction of the price with the EDDY Pump Self-Priming System.
By replacing vacuum trucks with a self-priming pump system, you can now pump waste material directly to the disposal areas, storage tanks, or dewatering bags nearby. This process can save companies hundreds of thousands of dollars per year on vacuum truck services. Geotextile Tubes, or containers made of interwoven high strength fabric, are used in many dewatering applications to separate solids from water in a solid-laden slurry. The bag’s interwoven holes allow water to pass through, leaving the solids behind for later removal. They are particularly effective for contaminated sediments dewatering and shoreline erosion control because they can be filled then stored indefinitely. It is a cost-effective means of dewatering, as no electricity is required.
A recent client in the manufacturing space was paying $200,000.00 every year to vacuum truck companies to dispose of the waste in their sumps. They tried using other pumps, but the pumps would constantly clog and fail because of large debris, abrasive slurry, etc. This problem was solved with a 2-inch self-priming EDDY Pump for a fraction of the annual cost of vacuum trucks. Dewatering bags are perfect for materials that can be dewatered and dispersed on site.
The EDDY Pump is unique compared to other industrial pumps available. This pump can do things that other pumps can’t, and in some cases, it would require multiple different types of pumps to perform under the same conditions, and pump the multitude of different types of materials that this pump can handle. The EDDY Pump is ideally suited for applications that require a tougher pump – a pump that can excel in environments where other pumps fail. This pump has been put to the test on countless occasions and has proven to be reliable, long-lasting, in service for long periods of time with little maintenance needed, and cost-effective due to reduced production downtime.
The design of the priming chamber ensures that enough liquid is retained for the pump to self-prime during subsequent uses, highlighting the importance of maintaining liquid levels to facilitate the pump’s operation effectively.
The EDDY Pump is perfect for pumping fluids with high solids content and viscosity, large debris, abrasives, and corrosives. To see more about the EDDY Pump go to https://eddypump.com/ today!
The EDDY Pump Corporation is a premier manufacturer of pumping and dredging equipment. If you are pumping or dredging slurry, high solids, extremely viscous material, paste, high abrasives (sand & gravel) and material filled with solids, then you found the best-suited product for the job. Go to: https://eddypump.com/ or Call Us!
Mining, Fly Ash, Coal Ash, Oil, Fracking, Gas, Wastewater, Pulp and Paper, Chemical, Energy, Water Municipalities, Irrigation, and Dredging Companies. For Access to Complete Product Line Go to: https://eddypump.com/products/
If you need help with pump selection, sales or engineering support, call 619-404-.
Related Products
Wondering about the best way to pump sewage and/or fluids? A self-priming pump may be what you need. It automatically removes air or gas from the pump casing, enabling it to start and operate effectively. It is used for pumping water and fluids along with raw sewage, gray water, or clear water (almost any liquid). Self-priming pumps have applications in various sectors due to their versatility.
In the comprehensive guide, we will delve into how self-priming pumps (including positive displacement pump setups) work. We will also explore their benefits and diverse applications. If you are looking to buy self-priming pumps, do visit the DAE Pumps website.
Self-priming centrifugal pumps feature a dedicated priming chamber positioned above the impeller. When the pump starts, it draws in a mixture of air and liquid into the pump casing. Here, the centrifugal force generated by the impeller effectively separates the air from the liquid, ensuring the proper functioning of the self-priming pump. Positive displacement pumps like liquid ring pump models are commonly self priming because their smaller clearances allow for easy vacuum creation.
In a self-priming positive displacement pump (including diaphragm pumps), the priming cycle refers to the process by which the pump evacuates air bubbles from its casing and suction line, replacing it with the pumped fluid (usually water) to create a vacuum and initiate the pumping action.
The liquid component, devoid of the constant presence of air or gases, is forced by the impeller to recirculate within the priming chamber. This recirculation creates partial vacuum within the chamber, facilitating the priming of the pump and enabling a smooth flow of the liquid from the suction line.
Simultaneously, the air bubbles are directed towards the discharge sides of the pump. This allows for the efficient expulsion of air, ensuring that the pump is fully primed and ready for optimal performance.
Once the priming cycle is complete and the pump is fully primed, it operates in the same manner as a conventional centrifugal pump, drawing fluid into the suction line and discharging it through the pump discharge port to a storage vessel.
Understanding how self-priming pumps work enables us to appreciate their efficiency and reliability in various applications, high and low pressure.
Self-priming pumps offer a reliable and efficient solution for fluid transfer applications. They have transformed the pumping landscape by automating the priming process. With a clear understanding of how self-priming pumps work, we can see their significance across industries and the benefits they offer in terms of convenience and efficiency. Be sure to buy self-priming pumps from a reliable partner like DAE Pumps.
Get in touch with us to know more about pumping and get customized pumping solutions to match your requirements. You can also reach out to us by giving a call at (760) 821-.
The time it takes for a self priming centrifugal pump to prime can vary depending on factors such as pump size, suction pipe length, and the presence of all the air in the system. In general, such pumps are designed to prime quickly, typically within a few seconds to a couple of minutes, ensuring efficient operation and smooth flow from the suction and discharge sides.
A self-priming pump is designed to handle fluids that contain suspended solids or air pockets, which reduces the need for maintenance. However, pumps require regular maintenance to ensure that the pumping process offers peak efficiency. Maintenance tasks may include cleaning the pump’s impeller, examining the check valve, checking the suction line for clogs, and inspecting the pump body for signs of wear or damage. Cleaning the suction side, discharge port and process lines can also be beneficial. Here is a quick troubleshoot guide to fix common pump problems.
Self-priming pumps have the ability to operate for short periods without liquid, but it is not recommended to run them dry for extended periods. Running a self-priming pump without liquid flow can cause excessive heat buildup, leading to damage to the pump components, such as the impeller and seal.
The choice between a self-priming pump and a self priming centrifugal pump depends on the application. Self-priming pumps are for frequent priming or where intermittent operation is required, whereas centrifugal pumps excel in continuous operation and handling larger volumes of fluid.
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