centrifugal mud pump manufacturers free sample

DAE Pumps dredging equipment is ideal for a variety of applications, including dredging dams, ports, marinas, rivers, canals, lakes, ponds, and more. Ensuring water quality and capacity are essential in hydroelectric and water supply dams, making DAE Pumps dredge pumps perfect for removing excess sand and silt. Clearing sediment and contaminates from riverbeds, channels, canals, and oceans help restore safe navigation and shoreline formations, and dredging lakes and ponds clean and remove contaminants and tailing. As ocean currents move sediments, the seafloor slowly rises, lowering the depth of marinas and ports. Dredging ensures safe access for boats and other water vessels.

Centrifugal pumps from DAE Pumps are perfectly suited for demanding process applications. Their heavy-duty construction ensures long-lasting performance in rugged conditions. The DAE Pumps knowledge and experience building top-of-the-line pumps make our centrifugal process pumps ideal in many markets and applications.

The durable DAE Pumps centrifugal pumps provide a proven ability to handle a variety of applications in the water and wastewater industries. These reliable instruments are perfect solutions for pumping chemicals used to treat water, irrigation, fountains, and much more.

For help selecting the most efficient pump for your project, call us at (760) 821-8112 or submit a request. Find the right pump size, volume, speed that you need. Get a FREE custom pump curve to ensure the right pump.

The motor or engine on a pump is as important as the pump itself. It is the driving force that makes the pump go. DAE Pumps offer a variety of motor choices: electric, diesel, and hydraulic.

Frames and skids hold the pump and motor together to make a complete unit. The frame provides stability for the placement of the pump and motor with the intent of a permanent install or seldom movement. The DAE Pumps trailer brings mobility to centrifugal slurry pumps. The whole unit, skid included, is mounted onto a trailer for mobile accessibility. Many industries use centrifugal pumps for performing multiple applications, and they move from one location to another quite frequently. The trailer provides a tremendous advantage of being on wheels.

Centrifugal pumps come in many shapes and sizes. There are two main parts to a centrifugal pump; the pump and the motor/engine. The electric motor or a diesel engine converts the energy it creates into mechanical energy. This mechanical energy drives the pump and moves the water. The centrifugal slurry pumps pull water and other materials in through the inlet and pushes it out through the outlet/discharge.

The electric motor and diesel engine work relatively similarly. A motor consists of a fan and protective casing mounted at the back. Inside the motor is the stator. The stator holds copper coils. Concentric to this is the rotor and shaft. The rotor rotates, and as it spins, so does the pump shaft. The shaft runs the entire length of the motor and into the pump where it connects to the pump’s impeller.

There are a couple of variations to a centrifugal pump. Some models of centrifugal pumps have a separate shaft for the pump and the motor. The connection between the separated shafts is called the coupling. These coupled pumps will contain a bearing house with bearings. The pump shaft then continues into the pump casing. As it enters the casing it passes through a gland, packing, and the stuffing box, which combined to form a seal. The shaft then connects to the impeller. The impeller imparts centrifugal force onto the fluid that makes it to move liquids through a pipe or hose. The impeller is in the pump casing. The casing contains and directs the flow of water as the impeller pulls it in through the suction inlet and pushes it out through the discharge outlet.

At the pump casing, there is a channel for water to flow along, which is called the volute. The volute spirals around the perimeter of the pump casing to the outlet. This channel increases in diameter as it makes its way to the outlet. The shaft passes through the seals and into the pump casing, where it connects to the impeller.

Liquid engulfs the impeller, and when it rotates, the fluid within the impeller also spins and is forced outward to the volute. As the fluid moves outwards, off of the impeller, it creates a region of low pressure that pulls more water in through the suction inlet.  The fluids enter the eye of the impeller and are trapped there between the blades. As the impeller rotates, it imparts kinetic energy or velocity onto the liquid. By the time the liquid reaches the edge of the impeller, it is moving at a very high speed. This high-speed liquid flows into the volute where it hits the wall of a pump casing. This impact converts the velocity into potential energy or pressure. More fluid follows behind this developing a flow.

The thickness of the impeller and the rotational speed affects the volume flow rate of the pump and the diameter of the impeller, and the rotational speed increases the pressure it can produce.

Net Positive Suction Pressure or NPSH is associated with pump suction. At the end of this acronym are two other letters NPSHR and NPSHA. The R is the required NPSH. Each pump tests for this value. At DAE Pumps, we provide a pump operation chart with all our specs. The R-value is a warning or danger point. As the fluid enters the pump and flows into the impeller’s eye, it experiences a lot of energy due to the friction, giving a pressure drop. At certain conditions, the fluids flowing through this section can reach a boiling point. Once this happens, cavitation may occur.

The last letter in NPSHA stands for Available. The net positive suction pressure available depends on the installation of the pump and should be calculated. NPSHA takes into consideration things like insulation types, elevation, liquid temperature, liquid boiling point, much more. Available pressure should always be higher than the required value. For example, if the NPSHA is 12 for the pump requiring an NPSHR of 4 then the pump should be okay. However, a pump that required an NPSHR of 15 than the available NPSH is insufficient, and cavitation will occur.

DAE Pumps provides custom pump curves per the information you provide. Including as much information about the project allow us to best match a pump with your needs, so the centrifugal pump you get is ideal for the project.

Cavitation in pumps is the deterioration of the pump’s metal due to the overheating of water. Cavitation destroys the pump’s impeller and casing that lead to replacing parts and the pump altogether.

Water can turn from a liquid state into steam or gas and boils at around 100 degrees Celsius at sea level. However, at a higher elevation, water boils at a lower temperature because of atmospheric pressure. If this pressure is less than the vapor pressure of the liquid that is pumping, then the water can reach a boiling point. When this happens, cavitation occurs.

During cavitation, air particles within the water expand, and as they reach the boiling point, they collapse in on themselves very rapidly. As they collapse, they start to damage the impeller and pump casing. This damage removes small parts of metal from the surface, and if this keeps occurring, then it will eventually destroy the pump. Therefore, you must ensure the Available pressure is higher than the Required pressure of the pump.

DAE Pumps provides a full spectrum of centrifugal slurry pumps and accessories for completing all your tough dredging projects.We provide turnkey solutions with complete centrifugal slurry pump systems that includeslurry hoses, slurry flow meters, power units,and more.Choose from multiple sizes of slurry hoses for the transferring of materials, wireless flow meters for measuring the flow rate in gallons per minute of liquid, and power units for operation.Parts are always in stock and available for immediate shipping to anywhere in the US and the world.

A centrifugal pump has a relatively straightforward design: a casing with a discharge valve houses an impeller with multiple blades which turns on a mechanically powered rotating shaft. As the shaft rotates, this pumping motion increases the pressure of the liquid passing through the casing via kinetic energy generated by the blades on the impeller. Once the fluid"s pressure is increased, it passes through the pump through the discharge valve. Centrifugal force is combined with positive displacement to sustain the operation.

This basic design allows pumps to be installed in larger mechanical systems or engines, from automotive engines to water treatment plants. Because centrifugal pumps often work with a variety of different fluids, from water to acids to oil, the casings are usually made from fairly hardy materials such as stainless steel, cast iron, or aluminum. The pumps usually have a weep hole, which is an opening on the underside of the pump that is used to help spot the first signs of mechanical seal failure. The mechanical seal is used to create a barrier between the motor and the water so that unwanted fluid does not go into the engine or motor. When the weep hole leaks, the pump will probably need repair or replacement.

High pressure or an overabundance of oxygen, specifically pockets of air within the casing that can develop when the pump is not being used and the casing is empty, can disrupt the operation of centrifugal pumps. Many pumps need to be regularly primed or checked for air pockets to ensure a seamless operation. The formation of air pockets is frequently referred to as cavitation.

The earliest conceptual incarnation of the centrifugal pump originated during the Italian Renaissance thanks to an engineer known as Francesco di Giorgio Martini, who described a mud lifting machine in a treatise in 1475. The more modern and recognizable form of the pump, with its straight vanes, did not appear until Denis Papin designed it during the 17th century. However, it wasn’t until the 19th century that the next major advance in the field was made. In 1851, John Appold unveiled his design for a centrifugal pump with a curved vane, which won him a council medal at that year’s Great Exhibition at the Crystal Palace. The curved vane was three times as efficient as any of the preexisting straight vane pumps, and had a profound influence on the industry.

While all centrifugal pumps use positive displacement as part of their operating procedure, they are differentiated from positive displacement pumps by the fact that they also increase the speed of the liquid moving through the pump, while positive displacement pumps simply move the liquid at the same speed. Positive displacement pumps include a lobe, screw, peristaltic, and a gear pump configuration.

A gear pump creates positive displacement by way of multiple meshing gears. There are two main types of gear pumps, internal and external. An internal gear pump uses a combination of an internal and external gear spur, while an external pump uses two external gear spurs. The fluid processed by these pumps moves at a steady rate per each revolution. Gear pumps are most frequently used in hydraulic fluid power operations.

Most vehicles built in the United States during the 20th century use a centrifugal water pump to provide water to the engine. The impeller of the water pump can sometimes be modified to increase the flow rate of the pump and the subsequent performance of the engine.

In fact, most centrifugal pumps differentiate themselves by modifying either the impeller or the discharge apparatus. The curvature and depth of the impeller vanes or blades has a significant impact on the operation of the pump. The impeller itself can also either be left open or closed. In a closed situation, a plate or other enclosure is affixed to the impeller blades. This has been shown to increase the flow rate in some applications, depending upon the specific fluid that the pump is processing.

The size of the discharge apparatus, combined with the speed of the shaft, can also significantly impact flow rate. However, it is vital that any modification of a pump does not unduly increase the “head” or pressure within the system. This pressure is measured in pounds per inch, or PSI, and refers to the force exerted by the fluid within the pump.

Have a vertical shaft attached to a perpendicular impeller. The lifting action of the impeller vanes pushes the liquid within the pump upwards in an axial flow pump. A jet pump aids the operation of a centrifugal pump by increasing suction, while a submersible pump is installed underground. True to its name, a submersible pump is almost constantly inundated with liquid, and therefore is a self-priming pump: air pockets rarely form within the suction line because water or another liquid is always being circulated through the pump.

While most pumps are powered mechanically, some pumps are powered by a hydraulic motor. Submersible pumps can be powered electrically. The power cords to these pumps are encased in a durable, waterproof cover, usually layered with thick rubber. Because they are more difficult to maintain, electric pumps tend to be smaller, such as a 12 volt pump, and deployed for specific operations, such as pumping out a flooded structure. The pump can be placed on a floating rig with an outbound discharge hose and allowed to gradually pump out the unneeded water. These pumps are sometimes also referred to as sump pumps.

Designed to work with abrasive fluids, including bleach, resin, acid, and an array of other toxic, often corrosive, materials. These can be useful in industrial operations. Well pumps, meanwhile, pump water from an underground region to a higher location within a given structure. Well pumps are often used to provide water for apartment buildings or other large structures, and often work in concert with a pressure tank.

Although they are primarily designed to deal with liquid, the centrifugal pumps can occasionally handle liquids that are contaminated with other materials, such as twigs, small rocks or sand, or other debris. These types of pumps are known as trash pumps, and are generally used in wastewater treatment plants or sewage operations. A trash pump is typically able to pump thousands of gallons of water per minute, a measurement that is referred to as the flow rate, and manages the thicker, more viscous liquid by way of a very large discharge opening and much deeper impeller vanes than are found on a typical centrifugal pump. There are several different subsets of trash pumps, including semi-trash pumps, and other pumps that handle liquids with specific particulate size limits. A dewatering pump, for example, can process non-hazardous water with particulate matter up to 0.25” in diameter. Some dewatering pumps are completely submersible and can operate from any position, including upside down.

A type of radial flow pump in which the fluid enters the impeller from both sides. Due to the extending of the shaft into the suction passage, double suction pumps are limited to pumping clear liquids.

Designed with wide unblocked passageways and are an intermediate pump between radial and axial flow pumps. Mixed flow pumps develop the pressure partially with centrifugal force and partially with the lift of the impeller vanes on the liquid.

Can be either horizontal or vertical, consist of two or more pumps of similar capacity that discharge into each other in a series. Progressively the pumps develop a total head, the sum of the heads that each pump has developed. A common shaft with several impellers, each with its own volute, is rotated by a power supply, building up pressure in stages.

Take in liquid through the center of the impeller and move it out along the impeller blades at a 90-degree angle to the pump shaft. Radial flow pumps develop the pressure only with centrifugal force.

A type of radial flow pump in which the fluid enters the impeller from one side, and the shaft does not reach into the suction passage. Single-end suction pumps are used in applications where there are large solids, such as rags and trash, that would normally clog the pump.

Designed to have only the casing and the impeller submerged in the pumpage for priming and the support bearings for the rotating element in a dry environment.

Have no throttle or bumper bushings or any rings at the impeller or submerged below the maximum normal water level, and they are used in applications, such as a sump or tank, in which it is necessary not to have a bearing in the pumpage.

Inefficiently designed pumps in which the impeller is recessed into the volute. However, vortex pumps are practical in applications that require pumping of excessive solids.

While a certain threshold of increased pressure is needed to make the pump operate successfully, too much head can unbalance the pump, causing damage. Depending on the amount of pressure, a pump can occasionally tear free from its moorings, known as shock mounts, and wreak havoc on an engine or surrounding assemblies. In order to avoid this unfortunate circumstance, pump owners should regularly prime their pumps to avoid cavitation, and make sure that they are not attempting to force too much liquid through their system too quickly. Operating a pump with a motor that is moving too quickly can also result in a build-up of unwanted head, thereby damaging the pump.

Frequent cavitation also damages the components within the pump. This happens because the impeller blades become pitted when the air pockets explode under pressure. Priming the pump at regular intervals will prevent undue cavitation, although over the working lifetime of a pump some amount of cavitation is likely to occur.

Because of their wide range of applications, centrifugal pumps are manufactured by a number of different companies for different purposes. Generally speaking, the pumps will increase in size and power for heavier industrial applications, while smaller pumps are used for less intensive operations. The industrial centrifugal pump manufacturing market has created pumps with 40,000 gallon per minute flow rates. This flow rate would not be necessary in a smaller application, such as in a car or in a well pump in a single family home.

Manufacturers are also experimenting with the use of thermoplastics and fluorocarbons as opposed to metal for use in the seals of pumps. These types of materials tend to resist corrosion better than metal, and therefore can increase the longevity of the pump without compromising the production of kinetic energy or centrifugal force. However, the use of stainless steel, cast iron, and aluminum is still typical for the exterior casings, although plastic is occasionally suitable as a material.

The need for jet pumps has also decreased in recent years as manufacturers have become more adept at designing pumps that provide ample suction without the need for additional assistance. However, depending on the viscosity of the fluid and any corresponding debris, a jet pump may still be needed.

In any case, a client who is attempting to find the best manufacturer for their needs should first be able to specifically articulate the application for which they will be using the pump. A client who is attempting to install a series of drainage pumps across a wide variety of low-lying properties will have different needs than a client who wishes to operate an aftermarket parts company that will sell modified water pumps for higher automotive engine performance. Similarly, it is vital that the client understands the kind of fluid they will be dealing with and its relative purity. In the case of the client who is seeking a manufacturer for drainage pumps, the water that the pumps will encounter will likely have some form of debris or small particulate matter contained within it. The aftermarket parts company, on the other hand, will likely be dealing with relatively clean water that has little to no debris. In each case, the condition of the liquid will influence what kind of pump is appropriate for the task.

Many manufacturers prefer to produce “mill runs” or large batches of a given product. This is partially because a large production batch will decrease overhead costs while also guaranteeing a substantial sum for the company. Clients who are attempting to design a new version of a pump or improve upon the basic centrifugal pump design should first make prototypes of the design. These prototypes will enable the client to instigate a thorough round of testing, which will reveal any flaws or unexpected performance quirks of the pump before it is approved for mass production. Manufacturers are often able to recommend a machinist or other fabricator for this task if they do not have a department already dedicated specifically to prototype production.

The force applied by the atmosphere to the surface of the earth. Atmospheric pressure, the standard of which is 14.7 lbs per square inch, affects the operation of a pump.

An undesirable condition in which vacuum pockets form within the pump. The air pockets eventually implode under pressure, resulting in the pitting of the impeller and volute surfaces.

An apparatus in a discharge or suction line that permits flow in only one direction so as to prevent reverse flow and isolate the material being pumped.

A stationary casing, like a volute, that houses the moving impeller. Diffusers are compact in design, enabling the pump to create higher pressure heads.

The required amount of gallons per minute (gpm) of pump flow. Flow can also be expressed in gallons per hour (gph) and in million gallons per day (mdg).

A rotating disk with vanes of varying amounts attached to the “r” drive shaft that creates centrifugal force within the pump casing of a centrifugal pump. Impellers can be open or closed.

Pump components located on the impeller between the eye and the discharge side of the impeller. Impeller vanes direct the flow of the liquid to the outside diameter of the impeller.

Allowing the pump to disperse all air from the influent line of a circulating system by causing fluid to start flowing once again. Priming the pump is usually accomplished by either manually filing the volute or turning the pump on.

Stationary casing of a centrifugal pump that separates air and water and in which the impeller rotates. Volutes are spiral-shaped in order to facilitate the partial conversion of the velocity (kinetic) energy into pressure head as the water leaves the impeller.

A small opening located on the underside of the pump at which point the engine joins the pump. Weep holes provide the means to quick detection of a leak before water seeps into the oil sump of the engine.

An innovative product policy and continuous advancement of essential design features make this pump a powerful, yet economical standard unit with a broad range of applications.

Professional China Mud Pump - BNS series Single Stage, End Suction Norm Centrifugal pumps – Beken, The product will supply to all over the world, such as: , , ,

The media that needs to be transported is very important when choosing a pump as the characteristics of the pump depend on its viscosity (i.e. the fluid’s resistance to a uniform flow), its suction temperature and whether or not there are solid elements in it. You will need to determine if the media to be transported is chemically neutral or corrosive  in order to choose the pump designed to operate under these conditions.

Now available the Varisco J 2-215, J 3-180, J 3-240 and J 3-210 self-priming centrifugal pumps with parts in contact with liquid, including hardware in AISI 316L ...

ZJQ Series Waste Water Centrifugal Submersible Pump, Pond Pump, Garden Pump is made up of motor and pump, which are separated through oil isolation room ...

... the pump is compact, small, may move conveniently, installation is simple and convenient, it is submerged into the water, no need to build the pump house, reduce construction cost greatly.

Selfpriming jet water pumps with a very high hydraulic performance and a considerable capacity. Able to pump up to mt. 8 depth and work perfectly even in soda-water. Suitable for water lifting and distribution ...

... solvent pump engineered by Burkle, is a hand operated barrel pump, suitable for the withdrawal of organic solvents and flavoring components. This device features a gas tight construction that is capable ...

OTAL container pumps are characterized by its basic stopper system that can be used in most common containers. During the pumping process, only the tube comes in contact with the liquid. This means that liquids that are ...

The BAW series assembled by Zhejiang Xingsheng Machinery, is a hygienic centrifugal pump that complies with the food sanitary standards. This machine provides users a simple structure that is attributed ...

This centrifugal pump series can be utilized for applications in industries such as alcohol, foodstuff, pharmacy, chemical and beverage by delivering liquids ...

Bucket pumps include a 16 litres leak proof, all steel oval shaped bucket with carrying handle and foot rest for easy handling and stability. Heavy duty high capacity grease pump with three alternative ...

Mobile unit, Includes: PM 3 - 55:1 ratio pump drums 404 100 with drum cover fg drum 418 013, 2 m x 1/4" delivery hose 412 102, grease gun with z-swivel 413 080, and trolley 430 000 with carryinng handle 741 602

The continuos service self-priming electric pumps are suitable for continuos coolant flow and assure absolute operating safety even at high temperatures.

PROLAC HCP is a range of close-coupled centrifugal pumps with hygienic design, compact and highly efficient. It is made of a cold-formed stainless steel casing, impeller, mechanical seal, ...

The RV centrifugal pump with helicoidal impeller is the best solution for the transfer of liquids with solid particles or medium viscosity products that cannot be pumped with an ordinary centrifugal ...

The DIN-FOOD pump is a hygienic high capacity centrifugal pump (up to 1000 m³/h) designed to cater for an unfulfilled need in the food-processing and chemical and pharmaceutical industries. ...

The DELTA VD fuel unit is an efficient modern oil burner pump with compact design and since its mounting flange, hub and shaft sizes are manufactured to international standards (EN 225), it can ...

Based on the proven centrifugal pumps of the Fristam FP range, the shear pump has a new, efficient mixing method. A rotor/stator system which operates at tip speeds of up to 38 m/s is ...

The Mini-Max electric pump was designed to work both as a multi-outlet system and with DPX progressive distributors. Naturally both systems can also be combined. It is driven by a 12 V DC or 24 V DC gearmotor ...

• Magnetic drive pump made of plastic material• Closed or open impeller pump in AISI304 or AISI316• Connectors in PP, PVC, PVDF• Pumps with membrane in plastic material or steel

Homa TP 50 series pumps are suitable for pumping drainage water or waste water. With 50 mm spherical clearance they are able to pump liquids with larger suspended solids like fibres, textiles etc. They ...

... wells, collection tanks, ponds etc. High performance, silent operation, easy installation, and fully automatic operation of the pump by just opening the tap are the main advantages of all HOMA booster units.

Homa TCV and TCM series pumps are suitable for pumping drainage water and waste water. With 35 up to 65 mm spherical clearance they are able to pump liquids with larger suspended solids like ...

Hartell’s PlenumPlus Condensate Pumps are the only plenum condensate pumps on the market that meet this standard. When safety counts, you can depend on PlenumPlus Commercial Grade Series of ...

... Commercial Grade Series of Condensate Pumps are the only plenum condensate pumps on the market that meet this standard. When safety counts, you can depend on PlenumPlus Commercial Grade Series of condensate ...

This rig features a Mission 4-by-5 centrifugal pump. Courtesy of Higgins Rig Co.Returning to the water well industry when I joined Schramm Inc. last year, I knew that expanding my mud pump knowledge was necessary to represent the company"s mud rotary drill line properly. One item new to me was the centrifugal mud pump. What was this pump that a number of drillers were using? I had been trained that a piston pump was the only pump of any ability.

As I traveled and questioned drillers, I found that opinions of the centrifugal pumps varied. "Best pump ever built," "What a piece of junk" and "Can"t drill more than 200 feet with a centrifugal" were typical of varying responses. Because different opinions had confused the issue, I concluded my discussions and restarted my education with a call to a centrifugal pump manufacturer. After that conversation, I went back to the field to continue my investigation.

For the past eight months, I have held many discussions and conducted field visits to understand the centrifugal pump. As a result, my factual investigation has clearly proved that the centrifugal pump has a place in mud rotary drilling. The fact also is clear that many drilling contractors do not understand the correct operational use of the pump. Following are the results of my work in the field.

High up-hole velocity - High pump flow (gpm) moves cuttings fast. This works well with lower viscosity muds - reducing mud expense, mixing time and creating shorter settling times.

Able to run a desander - The centrifugal"s high volume enables a desander to be operated off the pump discharge while drilling without adding a dedicated desander pump.

6. Sticky clays will stall a centrifugal pump"s flow. Be prepared to reduce your bit load in these conditions and increase your rpm if conditions allow. Yes, clays can be drilled with a centrifugal pump.

7. Centrifugal pumps cannot pump muds over 9.5 lbs./gal. Centrifugal pumps work best with a 9.0 lbs./gal. mud weight or less. High flow rate move cuttings, not heavy mud.

The goal of this article has been to increase awareness of the value of the centrifugal pump and its growing use. Although the centrifugal pump is not flawless, once its different operating techniques are understood, drilling programs are being enhanced with the use of this pump.

If you wish to learn more, please talk directly to centrifugal pump users. Feel free to call me at 314-909-8077 for a centrifugal pump user list. These drillers will gladly share their centrifugal pump experiences.

When choosing a size and type of mud pump for your drilling project, there are several factors to consider. These would include not only cost and size of pump that best fits your drilling rig, but also the diameter, depth and hole conditions you are drilling through. I know that this sounds like a lot to consider, but if you are set up the right way before the job starts, you will thank me later.

Recommended practice is to maintain a minimum of 100 to 150 feet per minute of uphole velocity for drill cuttings. Larger diameter wells for irrigation, agriculture or municipalities may violate this rule, because it may not be economically feasible to pump this much mud for the job. Uphole velocity is determined by the flow rate of the mud system, diameter of the borehole and the diameter of the drill pipe. There are many tools, including handbooks, rule of thumb, slide rule calculators and now apps on your handheld device, to calculate velocity. It is always good to remember the time it takes to get the cuttings off the bottom of the well. If you are drilling at 200 feet, then a 100-foot-per-minute velocity means that it would take two minutes to get the cuttings out of the hole. This is always a good reminder of what you are drilling through and how long ago it was that you drilled it. Ground conditions and rock formations are ever changing as you go deeper. Wouldn’t it be nice if they all remained the same?

Centrifugal-style mud pumps are very popular in our industry due to their size and weight, as well as flow rate capacity for an affordable price. There are many models and brands out there, and most of them are very good value. How does a centrifugal mud pump work? The rotation of the impeller accelerates the fluid into the volute or diffuser chamber. The added energy from the acceleration increases the velocity and pressure of the fluid. These pumps are known to be very inefficient. This means that it takes more energy to increase the flow and pressure of the fluid when compared to a piston-style pump. However, you have a significant advantage in flow rates from a centrifugal pump versus a piston pump. If you are drilling deeper wells with heavier cuttings, you will be forced at some point to use a piston-style mud pump. They have much higher efficiencies in transferring the input energy into flow and pressure, therefore resulting in much higher pressure capabilities.

Piston-style mud pumps utilize a piston or plunger that travels back and forth in a chamber known as a cylinder. These pumps are also called “positive displacement” pumps because they literally push the fluid forward. This fluid builds up pressure and forces a spring-loaded valve to open and allow the fluid to escape into the discharge piping of the pump and then down the borehole. Since the expansion process is much smaller (almost insignificant) compared to a centrifugal pump, there is much lower energy loss. Plunger-style pumps can develop upwards of 15,000 psi for well treatments and hydraulic fracturing. Centrifugal pumps, in comparison, usually operate below 300 psi. If you are comparing most drilling pumps, centrifugal pumps operate from 60 to 125 psi and piston pumps operate around 150 to 300 psi. There are many exceptions and special applications for drilling, but these numbers should cover 80 percent of all equipment operating out there.

The restriction of putting a piston-style mud pump onto drilling rigs has always been the physical size and weight to provide adequate flow and pressure to your drilling fluid. Because of this, the industry needed a new solution to this age-old issue.

As the senior design engineer for Ingersoll-Rand’s Deephole Drilling Business Unit, I had the distinct pleasure of working with him and incorporating his Centerline Mud Pump into our drilling rig platforms.

In the late ’90s — and perhaps even earlier —  Ingersoll-Rand had tried several times to develop a hydraulic-driven mud pump that would last an acceptable life- and duty-cycle for a well drilling contractor. With all of our resources and design wisdom, we were unable to solve this problem. Not only did Miller provide a solution, thus saving the size and weight of a typical gear-driven mud pump, he also provided a new offering — a mono-cylinder mud pump. This double-acting piston pump provided as much mud flow and pressure as a standard 5 X 6 duplex pump with incredible size and weight savings.

The true innovation was providing the well driller a solution for their mud pump requirements that was the right size and weight to integrate into both existing and new drilling rigs. Regardless of drill rig manufacturer and hydraulic system design, Centerline has provided a mud pump integration on hundreds of customer’s drilling rigs. Both mono-cylinder and duplex-cylinder pumps can fit nicely on the deck, across the frame or even be configured for under-deck mounting. This would not be possible with conventional mud pump designs.

The second generation design for the Centerline Mud Pump is expected later this year, and I believe it will be a true game changer for this industry. It also will open up the application to many other industries that require a heavier-duty cycle for a piston pump application.

Mud Pumps come in both electric and gas / diesel engine drive along with air motors. Most of these pumps for mud, trash and sludge or other high solids content liquid dewatering, honey wagon and pumper trucks. Slurry and mud pumps are often diaphragm type pumps but also include centrifugal trash and submersible non-clog styles.

WARNING: Do not use in explosive atmosphere or for pumping volatile flammable liquids. Do not throttle or restrict the discharge. Recommend short lengths of discharge hose since a diaphragm mud pump is a positive displacement type and they are not built with relief valves.

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