5 Reasons Why Your Business Needs Slurry Pump Wet Parts?

06 May.,2024

 

Slurry Pumps VS. Water Pumps: Why Do I Need A ...

When it comes to slurry transportation, familiarity with pumps and their parts is par for the course. However, it's also important to understand what goes into each element of slurry transport. That understanding starts with a few basic questions: "What's the difference between a slurry pump and a water pump?" "What makes a slurry pump special?" and "What kinds of slurry pump installations are there?"

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Slurry pumps versus water pumps

What distinguishes slurry from other fluid types is the presence of a solid — gravel, copper, or sand — within a liquid. Although, in many cases, that liquid is water, a slurry may contain solvents, like acids, alcohols, or petroleum. Those non-water components, whether solids or solvents, make slurry pumps necessary.

slurry-types

In contrast to water pumps' narrow and often inexpensive components, large replaceable slurry pump parts are made of sturdy, often specialized materials. These parts allow pumps to move nearly any type of solid within a slurry efficiently and safely. Water pumps, on the other hand, lack the hydraulic capacity to move solid particles and are unable to withstand the particle abrasion and chemical corrosion that slurries can cause.

 

What makes slurry pumps special?

Slurry pumps can withstand extensive wear due to characteristics such as: a large impeller diameter, shafts, bearings, and internal passageways as well as heavy-duty construction. On an industrial level, slurry pump features generate higher upfront and operational costs compared to water pumps. However, only slurry pumps can hydrotransport solid materials efficiently, and the long-term benefits outweigh initial costs.

Centrifugal force pushes something outward when it's spinning rapidly around a center.

Key to slurry pump success is the generation of centrifugal force, which pushes material outward from the pump center. This contrasts with centripetal force, which pushes material toward the center. Slurry pumps must operate on centrifugal principles because the forces that impart velocity to the slurry accelerate the transport process. A centripetal pump, on the other hand, would be impractical since the solids within the slurry would accumulate instead of flowing freely.

 

Slurry pump installations

Knowing these basics, it's also important for anyone looking to install a slurry pump to understand the specific environments required for each type of pump. Three types of slurry installations exist:

Wet — In this installation, the slurry pump and drive are fully submersible. This is necessary for certain slurry pump applications, such as underwater operations.

Dry — In this installation, the pump drive and bearings are kept out of the slurry. The wet end — which includes the shell, impeller, hub or suction liner, and shaft sleeve or stuffing box — is free-standing and clear of any surrounding liquid. Slurry pump technicians install most horizontal pumps this way.

Semi-dry — This special arrangement is used for dredging applications with horizontal pumps. Operators flood the wet end and bearings but keep the drive dry. Bearings require special sealing arrangements in this case.

Although this guide provides an overview of slurry pumps and their installations, there's plenty more to learn. For those who want to better understand slurry pumps and their applications or need help deciding which pump and installation type is best for their applications, Fengwang is here to help.

Top 5 Reasons Why You Should Trust Your Business to ...

There’s a wide selection of quality pump manufacturers, so picking one for your business can be tricky. A top-notch pump service company and supplier will carry all the best brands, but Oberdorfer Pumps is recognized to be the industry leader for reliability and creative solutions. Here’s the top 5 reasons (among many) that Oberdorfer is the choice of engineers and mechanics.

Experience, Experience, Experience

In 1875, Moses L. Oberdorfer opened a small factory in Syracuse, New York. His efforts were quickly recognized, and he was encouraged to expand his offerings. After studying the physics of flow mechanics, he started manufacturing pumps for business and industrial customers in the region, and his work was an instant hit in major industry. He effectively founded the company on his perfected bronze gear pump, and he used this success to develop new machining practices and creative ways to increase quality while reducing prices.

It wasn’t long before his pumps became the industry leader, and orders came flooding in. Eventually, he built a foundry and became a major local employer, providing pumps across industrial and consumer needs. His pumps were also critical to the increasing reliability and popularity of early automobiles.

In 1922, Harry Digney started running the business and carried on the Oberdorfer traditions of commitment to high quality and constant experimentation. His family purchased the company and still own and operate it to this day. Recently, Oberdorfer also joined with Gardner Davis and merged their parallel company philosophies, taking the best from both industry leaders to continue their dedication to customer satisfaction.

Oberdorfer Is Synonymous With Innovation

Neither Moses Oberdorfer nor the Digney family were satisfied with success. They built a research team to invent new materials, press the limits of technology, and develop new and highly-intrusive testing procedures. Collaboration with scientists and universities meant they could anticipate breakthroughs in techniques and metallurgy to be on the cusp of modernization.

Dedication to Customer Satisfaction Is How Oberdorfer Earned Their Unprecedented Loyalty

Mr. Oberdorfer began his company at the perfect time – as industrialization was rapidly increasing, quality was taking a huge hit. He decided that customer loyalty was better for his company in the long run than quick profits, and nothing sells faster than word-of-mouth. His tireless search for improvements may have seemed out of place, but he quickly became a local – then regional – legend.

That commitment was embedded in the company culture, and it remains their defining feature; high quality is literally their tradition. They continue to explore the edges of pumping technology in their never-ending quest for maximum customer satisfaction.

If Downtime Equals Disaster, There’s No Tolerance for Poor Quality

A single pump failure can destroy millions of dollars in equipment under the wrong circumstances. Oberdorfer maintains a zero-downtime policy that aims to keep properly-maintained pumps from failing under load. The entire assembly process is very carefully controlled to ensure the highest quality possible, and every single pump undergoes full, rigorous testing required by Oberdorfer quality standards before it goes out the door.

Lastly, Oberdorfer Has Pumps for Almost All Business Needs – Even Custom-Built!

Oberdorfer pumps are found in an amazing range of commercial and industrial businesses, including (but not limited to):

  • Agriculture and food services
  • Aviation
  • High-performance automotive
  • Industrial production
  • Military and aerospace
  • Petrochemicals and pipeline infrastructure

And they have a very wide range of pumps to meet these needs. The 4 basic categories are

  1. Gear pumps
  2. Centrifugal pumps
  3. Flexible impeller pumps
  4. Progressive cavity pumps

Gear Pumps

Gear pumps use either internal or external gears to move the fluid; both will still have their gears inside the pump, with “internal” referring to the orientation of teeth on a gear. They provide a fairly consistent flow rate that’s proportionally based on the rpm of the gears. The 6 gear pump types are bronze, stainless steel, cast iron, filter-press, Hastelloy C, and non-metallic.

Bronze gear pumps have stainless steel shafts and a range of bearings and fittings. They’re best for pumping clear lubricants and non-lubricating fluids.

Stainless Steel gear pumps use Oberdorfer’s exclusive CHEMSTEEL to safely handle extremely corrosive chemicals and other harsh materials with ease. CHEMSTEEL offers a range of alloys to maintain system integrity for acids, alkalis, and almost every other corrupting fluid. Non-metallic pumps also are designed for certain harsh chemicals, and they allow for trimming to maximize flow and minimize turndown.

Cast iron gear pumps are built for endurance and operate at a wide range of fluid temperatures. The shafts are polished steel, and they use a 3-section design for optimal alignment and easy servicing. Hastelloy C pumps use a combination of materials and other creative solutions to reduce the risk of damaging cavitation, and elastic housing that develops “memory” to reduce the risk of leakage.

Filter press gear pumps are designed to meet lead-free requirements in the maple syrup industry. They are compact, energy efficient, and have very precise tolerances to reduce mechanical losses and maximize flow.

Centrifugal Pumps

Next are the centrifugal pumps, which are ideal for low pressure, low viscosity, and high flow. They use a high-speed impeller, which somewhat resembles the blades of a fan, to suck water into the axis and forcefully expel it along the circumference toward the outlet. They provide a high flow volume with less oscillation by restricting the inlet eye flow, allowing the impeller to more precisely control velocity.

Most Oberdorfer centrifugal pumps are made of bronze, can provide up to 20 pounds of lift and use few moving parts for reduced wear and maintenance. They’re great for marine use, other severe environments, and most solvent pumping (with the correct seals). Some have an open, semi-open, or offset impeller that can even handle entrained solids.

Centrifugal pumps can come with or without self-priming and may be either bronze or plastic. Plastic pumps are very well suited for portable cleaning machines, some laboratory use, and other applications that need to customize the discharge port or air vent orientation. They are remarkably powerful for their size and are rated for continuous use.

Flexible Impeller Pumps

Oberdorfer is the leading manufacturer of flexible impeller pumps, thanks to their proprietary materials that increase the life of the impeller. They function by using elastic vanes to form a tight seal with the housing. As they spin, a vacuum is created to draw fluid into the housing. These pumps are built for general fluid transfer, are by nature bi-directional, and are well-suited for recirculation.

Best described as “rugged simplicity,” they are cased in high-quality, corrosion-resistant bronze and have a stainless-steel shaft. Some are designed to transfer slurry and viscous or highly entrained fluids. There are various internal components that will change based on your needs. Impellers might consist of neoprene or nitrile and seals might have nitrile or PTFE. They are positive-displacement pumps, so a relief valve is important. As with any flexible impeller pump, they are self-priming but running one when dry will rapidly damage it.

The pump output is relatively smooth and gentle. Some of the more common applications of flexible impeller pumps include cosmetic and skin care manufacturing, chemical production, marine use, food processing, and professional wine-making (oenology).

Progressive Cavity Pumps

Progressive cavity pumps are principally designed to be used with higher-viscosity fluids; in fact, whereas centrifugal pumps become less efficient as viscosity increases, progressive cavity pumps will increase their effectiveness. They work by turning a rotor with discrete, fixed-shape cavities to create suction; think of a close-fitting jack-screw turning inside a shaft for the basic idea. The lack of valves and continuous, smooth and efficient operation allow for precise production control and system protection with proper monitoring.

The volume of the flow rate is directly proportional to the rotation of the rotor. Cavities typically taper towards their ends and overlap to cause minimal variation and an effectively pulseless flow. These pumps are very quiet and, to a first approximation, have the same flow regardless of viscosity – even when it frequently changes during pumping. Their superior control allows simplified pump speed variation, and along with the linear flow, can substantially reduce or eliminate sheer stress, a condition in fluids that tends to cause emulsification, such as when pumping oil-and-water mixtures into a separation device. However, they shouldn’t be used with a solvent that will damage nitrile.

Progressive cavity pumps are highly versatile and fit a wide range of applications. They are excellent for contaminated liquids thanks to the cutting-edge, flexible nitrile stator. If the fluid entrains any abrasive solids, cavity pumps may be the only safe option, thanks to their abrasion-resistant design and low internal velocity. They are also highly suited for

  • Coal slurry, sewage and sludge
  • Food and drink pumping
  • Oilfield pumping and mud motors
  • Stormflow screening
  • Certain well water pumping

Oberdorfer also designs and manufactures custom pumps to replace unusual setups or hard-to-find OEM parts. Contact a qualified Oberdorfer pump distributor to get more information. There are a few top-notch distributors out there; to choose the ideal one for you, here’s some questions you might ask yourself after talking to each

  • Do they enjoy answering your questions and problem-solving with you?
  • Do they design, service, repair and provide maintenance for all their parts?
  • Can they provide a full-service system evaluation and explain any problems or damage?

Do they carry a diverse line of products to meet every conceivable need?

The Complete Guide to Oberdorfer Pumps

If you’ve ever contemplated how a commercial fishing vessel can keep a catch on board without contamination or how the fuel in your gas tank gets to the engine, you may be surprised to find that one machine makes them both possible: the pump. Cardinal Pump, the manufacturer of Oberdorfer Pumps based in Missouri, is at the forefront of providing new applied uses and enhancements to products that seemingly do it all. The essential function of a pump is the transfer of something from one place to another. Whether that happens in a car, on a boat or underground in tanks, moving water, air and fuel only happens as it does with the use of pumps. Take a look at all the things these magical machines do and gain some insight and appreciation for the process.

Industrial Applications

Original equipment manufacturers (OEM) and the distributors of these parts rely on pumps to keep crucial elements of the process running smoothly. Since pumps provide invaluable services such as making sure machinery stays cool or getting fuel safely and efficiently from one point to another, it stands to reason that outfitting a factory or warehouse with Oberdorfer Pumps makes sense whether it’s a new build or a refit. When dealing with thicker fluids with a high viscosity, progressive cavity pumps have the components and power to push things through without seizing or failing. Some uses for industrial pumps include:

  • Oil transfer (high-viscosity)
  • Diesel transfer
  • Coolant transfer (welding)
  • Road saw
  • Air filtration systems

Agricultural Applications

Owning and tending to a farm is not a simple way to make a living. With the help of high-quality pumps, like the Oberdorfer gear pump, taking care of crops and animals is easier. Controlling pests by air is manageable and more efficient. Dairy farms can manage a higher number of bovines with the help of pumps that not only help with the milking process but also with the storage and processing of the milk. Sometimes there may be too much water pooling in one or more areas of the fields. Underground pumping systems can remove water before it becomes toxic to the plants and animals it is meant to serve. Dry rot can be stopped and water-borne illnesses halted by taking away these massive reserves of water. Also, too much standing water is the ideal breeding ground for mosquitos, which can transmit disease among animals and people. Typically, pumps on farms are used for:

  • Humidity and heat controls
  • Mosquito treatment
  • Preservative spray treatments
  • Weed controls

Beverage and Food Industry

You may not realize how many processes Oberdorfer pumps simplify, but when it comes to the food and beverage industry, the assistance offered by these industrial helpers is priceless. These types of machines perform things like cycling liquids such as milk, to remove toxins and filter out chemicals and particles. When it comes to food packing and preservation, nothing can compare to the efficiency, consistency and safety of pump-driven processes. When a liquid is heated and needs to be brought back down to a lower temp, beverage cooling pumps circulate cold water through coils to expedite the process without sacrificing quality. Other uses in this fashion include:

  • Meat seasoning (brine injection)
  • Maple cream and syrup processing

Aquatic Industry

Who knew boating relied so heavily on pumps? Oberdorfer did, of course. For over a century, the Oberdorfer brand has been providing the marine industry with the tools and technology necessary to operate everything from small private vessels to large transport carriers. The commercial fishing industry wouldn’t be nearly as successful if not for the various applied uses of marine pumps. The centrifugal pumps are the nuts and bolts of every boat engine. The propeller spinning causes the pump to circulate fuel in and through the engine. Without this process, a boat would be dead in the water. In addition, pumps also perform the following functions:

  • Bilge pumping
  • Circulate air conditioning
  • Engine coolant and generator circulating
  • Ice making
  • Human waste transferring
  • Ballast transferring

Infrastructure Maintenance

Ever wonder how airplane wings get de-iced or how large amounts of Epsom salt applied to roadways and bridges in the winter? Gear pumps are essential in maintaining general transportation and infrastructure elements. Toilets on airplanes get flushed with the help of these multi-purpose, multi-functional instruments. The inner design of the pump is anti-corrosive and therefore better able to deal with wet conditions than other options. The last thing you need when tending to icy conditions is a pump failure due to corrosion or water intrusion destroying mechanical components. In aircraft and other larger more complicated engines, centrifugal pumps are integral in keeping engines from overheating by circulating coolant in and transferring hotter vehicle liquids out.

Other Pump Uses

Oberdorfer pumps serve industries beyond what is mentioned above. These machines play a role in many common or general uses. From transferring oil from under the earth to receptacles to the trucks the same oil is put in for transport to refineries, pumps make all facets of commerce and life more manageable. Smaller uses include embalming – something you may have never thought of (or even cared about). The system of pumping blood out in exchange for formaldehyde to preserve a body is all facilitated through the use of pumps. Before these simple yet hearty tools were used, imagine what this process was like.

Common Pump Types

Oberdorfer produces many pump products, but the most common of these are:

  • Gear pumps
  • Centrifugal pumps
  • Flexible impeller pumps
  • Progressive cavity pumps

None of these machines would do the job without an Oberdorfer pump distributor, an integral piece in the relay system. All of these examples above all utilize one or more of these types of pumps.

For over a century, Oberdorfer Pumps has supplied industries and individuals with machines to help simplify the task at hand. The quality of the products produced is unsurpassed. Oberdorfer continues to revolutionize processes, materials and applications to stay on the cutting edge of new applied uses. Improving their products results in the broader use of the pumps in applications around throughout the world. With the way computers and high-tech gadgets are revolutionizing the world, Oberdorfer continues to remain relevant and keeps pushing forward to supply the type of product that keeps the world turning.

Oberdorfer Pumps: Perfect for Any Operation

When it comes to the fields of production and heavy operations, high-quality, dependable equipment is crucial to both success and safety. Oberdorfer Pumps are designed to stand strong against even the most intense daily use without sacrificing the efficiency of the system—a trusted name in many industries for over 100 years, Oberdorfer has been a reliable supplier of pumps for a multitude of applications. From agricultural processing to water treatment, to food production and everything in between, time, dedication and technology have yielded some of the most efficient and durable pumps available on the market today.

An Industrial Pioneer

Beginning with the introduction of the bronze Oberdorfer gear pump in 1890, Oberdorfer would go on to develop many different types of pumps as heavy industries started to branch out across the nation. Throughout the century, the company expanded its focus to suit many fields, such as marine, agricultural, and chemical processing, with the same manufacturing standard: produce a high-quality, efficient product without sacrificing craftsmanship or operational integrity. Thus, the continuous development of Oberdorfer products has ultimately resulted in some of the finest and most versatile industrial equipment that has ever been created.

A Variety of Pumps

Oberdorfer may only have one production plant in Syracruse, New York, but the company produces several types of industrial pumps to suit virtually any need. The standard gear pump is one of the most commonly used types of pumps, using meshed gears to pump fluid via the principle of displacement. The patented Chemsteel pump is specifically designed to process highly corrosive fluids under high pressure, all while preventing the contamination of the system and maintaining the liquid’s integrity. The centrifugal pump is another common Oberdorfer water pump, using rotational energy to move fluid between multiple impellers. Finally, there is the flexible impeller pump, which draws on positive displacement to pass liquid into the pump housing and out through a discharge port at a constant rate.

A Multitude of Professional Applications

Naturally, producing a wide selection of pumps allows Oberdorfer to tailor to the needs of many industries. The standard gear pump is typically used in the processing of high viscosity fluids, including petrochemicals, paint and ink, adhesives, pulp, and even some foods; the Chemsteel pumps, due to their corrosion-resistant design and 3-section O-ring seal, are most commonly seen in systems that handle more dangerous liquids. Centrifugal pumps can often be found in water, sewage, and agricultural processing systems; flexible impeller pumps, on the other hand, are often used in the oenological field for wine making, as well as some food and chemical processing, cosmetic manufacturing and some marine operations.

An Excellent Choice

With a rich selection of technologically advanced pumps, it isn’t any wonder that the Oberdorfer pump distributor has been trusted to produce equipment for businesses across the nation for well over a century. Immeasurable time, dedication and refining has ultimately allowed Oberdorfer to produce consistently quality products across the board, regardless of the industry or operation. Designed with the consumer in mind, Oberdorfer is an excellent choice for any industrial project, no matter the project’s needs.

High Quality Oberdorfer Pumps

Oberdorfer Pumps: 100 Years of High Quality Pumps for Today’s Industrial Needs

Industrial pumps handle a range of different applications across several industries. Industrial pumps are heavy-duty process pumps. They move water, chemicals, wastewater, oil, petroleum, sludge, food, slurry and other products. The types of pumps you need depend highly on your industry of choice.

For 100 years, Oberdorfer has maintained a high quality reputation. The company produces dependable pumps, in a variety of materials and with a number of different types. Continue further to learn more about the types of pumps industries rely on and what factors into their dependability.

Centrifugal Pumps

A centrifugal pump moves fluid by a transfer of rotational energy from driven rotors known as impellers. The impeller rotates rapidly and fluid enters along its axis until it casts out by centrifugal force through the impeller’s vane tips. The fluid’s velocity increases by the action of the impeller and directs it towards the outlet. Designed to constrict fluid from the inlet, the pump casing directs fluid into the impeller and then controls it before discharge.

Oberdorfer designs their impeller pumps to be capable of a variety of industry needs. These pumps have to handle higher flows and low viscosity liquid. The impeller must rotate at a high speed at all times. If constantly fed high viscosity liquid, it will be inefficient. With greater resistance, more pressure is necessary to maintain the flow rate. When you think about centrifugal, you should think about low pressure and high capacity.

Overheating occurs with mud and high viscosity oils. Likewise, any medium sensitive to shearing is prone to damage by the high-speed impeller. Before use, the pump needs to be primed. It doesn’t provide adequate suction when dry. Due to this, you don’t want to use it if there isn’t a constant flow.

The industries that use centrifugal pumps are as follows:

Link to SHANGLISHI

Centrifugal pumps offer a wide variety of applications.

Progressive Cavity Pumps

Progressive cavity pumps use positive displacement. These pumps feature a suction inlet that feeds into a casing. The elongated casing has a stator assembly and helical worm rotator. Spaces are created in the assembly with temporary seals as the rotor contracts the surface. As the rotator moves, the cavities form and draw in the product that is progressed along the assembly. As with all of its pumps, Oberdorfer pumps go beyond to create the best quality pumps that money can buy.

These types of pumps handle viscous fluids. These fluids are at high flow rates, with a high discharge pressure. There is a variety of fluids that this type of pump is capable of handling. For instance, it may be able to move slurry, pulps, mashes and dough from wastewater, anaerobic digestion and paper recycling plants. When it comes to different types of material, abrasive fluids may shorten the lifespan of the pump. Harsh materials will wear away at the internals of the pump over time. When it comes to viscous fluids, the fluid acts as a lubricant and your pump may not wear out as fast.

As far as applications are concerned, the progressive cavity pump has many uses. Here are some of the uses that you may see:

  • Food and drink
  • Oil and coal slurry
  • Stormflow
  • Sewage
  • Viscous chemical

A surprising fact about progressive cavity pumps is that you can use them in down directional drilling. In this case, the fluid becomes a source of mechanical power. The fluid turns the rotor and rotates the directional drilling bit.

Component Material

When it comes to any pumping application, there are many factors in finding the right pump for your industry needs. For instance, first you need to make sure that you have the right type and size. There’s more to it, however, and no matter what you decide is best, there will be an option for you with Oberdorfer. The next factor is the materials themselves. Material affects a few different aspects of the pump:

  • Longevity
  • Performance
  • Cost

When it comes down to it, most people are interested in the cost first.

Standard pump materials include bronze, carbon steel and cast iron. Generally, these are the least expensive materials. Now, you do sometimes need to be careful when it comes to material. Sometimes more affordable initially isn’t better. For instance, a cheaper material might require more repair work over time.

In addition to cost, you have to think about pumps and corrosion. Corrosion occurs when a chemical or electrochemical reaction occurs and attacks the metal. The truth is that most materials can handle the majority of fluids. However, you need to know the types of corrosion possible and the factors that will affect the corrosion rate. It’s best for someone to select a material that will withstand corrosion and that has abrasion or cavitation resistance.

When it comes to water or noncorrosive services, consider bronze for the impeller. Use cast iron only when it is a low cost and limited pump. Stainless steel impellers are even better if you need something that can withstand a higher amount of corrosion. If it comes to the casing itself, most people prefer cast iron, especially if it is for water or wastewater applications.

When it comes to your industrial needs, it’s important to find the right pumps. In addition to finding the right pump and material, trust in your manufacturer is important. Oberdorfer has been around for 100 years. It has led the industry in high quality pumps and pump parts. Unless you want to spend extra money on repairs, spending the money on quality is crucial. Sometimes, in search of a good deal, people will spend money on low quality options, only to have to repair them later. Choose between marine industrial, Chemsteel pumps and other high quality pumps.

In the pump industry, experience matters. The longer a company has been in the business, the more likely they will have options for you. There’s a reason Oberdorfer that the company has been around for as long as it has. When you purchase a pump, you are investing in experience and reliability.

The Complete Guide to Oberdorfer Pumps

No matter the application, if you’re looking for pumps, Oberdorfer Pumps is the name that should come to mind. Oberdorfer has been making pumps for a wide variety of uses for over 100 years. Their consistent quality and dependability have made them a leader in the field. Founded in 1890 by Moses L. Oberdorfer, the company began by making pumps for the early automobile, motorboat, and aircraft industries. Today they make pumps used in agriculture, food and beverage, transportation, and countless other industries.

Centrifugal Pumps

The most common type of pump used in agriculture, industry, wastewater plants, petroleum, and power generation plants, centrifugal pumps are a type of kinetic pump that uses an impeller to move fluids. The impeller rotates, increasing the fluid’s velocity and pressure and directing it towards the pump outlet. Oberdorfer Pumps offers several choices in centrifugal pumps, including bronze, plastic, and self-priming, to meet your needs.

Centrifugal Pump Features

  • 19 different models of bronze pumps available
  • Compatible with liquids including water, water solutions, many commercial chemicals, and oils
  • Bronze and corrosion resistant aluminum construction
  • Quiet operation
  • Can handle contaminated liquids
  • Temperature limit of 212˚ Fahrenheit with Nitrile rubber seal
  • Temperature limit of 400˚ Fahrenheit with fluroelastomer seal

In addition to bronze centrifugal pumps, Oberdorfer makes plastic pumps that can handle chemical fluids. These pumps have bodies made of non-metallic glass reinforced Nylon. This makes them particularly suited for spray installations and portable liquid cleaning machinery. The plastic pumps have a temperature limit of 200˚ Fahrenheit.

Centrifugal pumps must be primed to run. This means they should be installed below the liquid level. For applications where this is not possible, Oberdorfer Pumps has designed self-priming pumps with a 20-foot suction lift. These pumps must be operated in the horizonal position and can be driven by electric motors, air motors, or hydraulic motors.

Gear Pumps

Oberdorfer Pumps offers a selection of 21 different gear pumps with flow rates from 2.1 GPM to 167.5 GPM. Gear pumps rely upon rotating cogs or gears to transfer fluids. Due to tight tolerances and rigid gear and housing designs, gear pumps can pump liquids at higher pressures than centrifugal pumps. They can also handle more viscous liquids. However, they struggle with liquids that contain solids as this can damage the gears.

Gear Pump Features

  • Bronze corrosion resistant gears and casing
  • Stainless steel shaft
  • Self-priming with suction lift of 20 feet
  • Temperature limit of 400˚ Fahrenheit, although some seals have lower limits
  • Pumps available with close-coupling, pulley drive, or flexible coupling
  • Recommended pressure limits of 100 PSI for water and non-lubricants, 150 PSI for oil and other lubricants

With tight tolerances and the gear design, gear pumps are powerful workhorses that can do a lot of work for you. To keep them running at their peak and to maintain their efficiency, it’s important to observe a few key operating procedures.

  1. Keep the speed as low as possible to perform the job. High speed causes more wear. Speeds above 900 R.P.M. are not recommended. Also keep pressure below 100 PSI.
  2. Add lubricants whenever possible. They increase the life of your gear pump.
  3. Room temperature liquids are best for gear pumps. Avoid extreme temperatures.
  4. Keep liquids as clean as possible. Sediments such as fine silt or sand are abrasive and accelerate wear.
  5. Pump thick liquids at slower speeds.

Progressive Cavity Pumps

This positive displacement pump uses a helical shaped rotor that turns within a stationary stator, acting similar to a moving piston. This is not a high-pressure pump as the stator is made of flexible Nitrile. This makes these pumps great for contaminated liquids, abrasive fluids, or fluids that are shear sensitive. In agriculture, progressive cavity pumps are used to move berries and fruits with little to no damage to the product.

Oberdorfer Pumps offers two progressive cavity pumps. Both are made of bronze or corrosion resistant aluminum. One is designed for pulley drive, while the other is mounted in the field to a two- or four-cycle gasoline engine. Other features include:

  • Quiet running
  • Suction lift as high as 20 feet
  • Heavy duty ball bearings
  • Carbon face mechanical seal
  • Pipe size 3/4
  • Stainless steel rotor

Filter Press Pumps

A filter press pump is used to separate solids from liquids. A type of positive displacement gear pump, filter press pumps made by Oberdorfer are specifically used for maple syrup production, although they may have other applications as well. All components of this pump are lead-free, making it ideal for the food industry.

Filter Press Pump Features

  • Helical gears provide quiet operation
  • Stainless steel shafts and gears
  • Self-priming
  • Braided compression packing seals
  • Temperature limit of 400˚ Fahrenheit
  • Either pulley drive or direct drive with flexible coupling can be used

Flexible Impeller Pumps

Another positive displacement pump, the flexible impeller has an impeller similar to a centrifugal pump, but the vanes in the impeller are made of Neoprene rubber. When the impeller rotates, these vanes bend, forming a tight seal against the impeller casing and creating pockets of liquid. This means the pump can successfully handle viscous fluids or those with a high solid content.

These pumps are suitable for mild chemicals and fresh and salt water solutions. They are particularly popular in the brewing industry. They cannot be used for severe solvent or acids which will corrode the Neoprene rubber vanes. A Buna N impeller is available for pumps that will be exposed to harsher petrochemicals.

Flexible Impeller Pump Features

  • Temperature limit of 180˚ Fahrenheit
  • Stainless steel shaft
  • Polytetrafluoroethylene (PTFE) barrier seals
  • Self-priming with suction lift of 15 feet
  • Pumps available with close-coupling, pulley drive, or flexible coupling
  • Easy impeller replacement

Chemsteel Pumps

For highly corrosive liquids that must be pumped under pressure, Oberdorfer Pumps makes Chemsteel pumps. These pumps are built with special material combinations to handle specific liquids. Options include alloy C or stainless steel housing construction, bearings of carbon or polytetrafluoroethylene, and gears of stainless steel, polytetrafluoroethylene, polyetheretherketone, and polyphenylenesulfide. Other features are:

  • Temperature limit of 450˚ Fahrenheit
  • Self-priming with suction lift of 20 feet
  • Three section, O-ring construction
  • Pressure from 0 to 150 PSI
  • Flows from o.5 to 30 GPM

Cardinal Pump, Your Oberdorfer Pump supplier

Oberdorfer Pumps have proven themselves over and over again for 100 years. Their durability and quality are legendary. Cardinal Pump is also dedicated to outstanding service and reliability. Serving the St. Louis area since 1987, Cardinal Pump has built a reputation as a trustworthy company that can solve your pump problems.

Cardinal Pump can help you throughout the entire pump process. They can design your Oberdorfer Pump system, install it, and service it throughout its lifetime. Contact Cardinal Pump today and get the answers you need.

Cardinal Pump Has the Best Oberdorfer for All Your Needs

Getting the right pump for a specific application is critical to both efficiency and durability. Put simply, Oberdorfer pumps are one of the best-engineered pumps in the world, and Cardinal Pump has a full selection to perfectly match the device to your needs.

The Four Basic Types

Broadly speaking, the four types of pumps are

1. Gear pumps

2. Centrifugal pumps

3. Flexible impeller pumps

4. Progressive cavity pumps

Gear pumps give a consistent flow rate using either internal- or external-toothed gears. They are aimed toward high-viscosity fluids or foodstuffs.

Centrifugal pumps are ideal in low pressure or viscosity applications. They give a high flow rate, less oscillation and have few moving parts, meaning less wear and tear.

Flexible impeller pumps create a vacuum with elastic veins that form a tight seal while rotating. They’re both rugged and simple, designed for general fluid transfer and work very well with bi-directional and recirculation needs. The output tends to be smooth and gentle with little variation.

Progressive cavity pumps increase their effectiveness as fluid viscosity increases. They rotate like a jack screw but inside a housing, and create a progressing vacuum for a very quiet, smooth and stress-free fluid flow.

Cardinal Pump Is a Leading Supplier of World-Class Pumps

Oberdorfer pumps are the industry standard when it comes to pumping virtually anything. Cardinal Pump proudly supplies them as part of their problem-solving approach to developing custom solutions. With over 30 years of experience, they’ll match the right pump to your precise needs.

A Fantastic Guide to Oberdorfer Pumps

If you’ve ever contemplated how a commercial fishing vessel can keep a catch onboard without contamination or how the fuel in your gas tank gets to the engine, you may be surprised to find that one machine makes them both possible: the pump. Cardinal Pump, the manufacturer of Oberdorfer Pumps based in Missouri, is at the forefront of providing new applied uses and enhancements to products that seemingly do it all. The essential function of a pump is the transfer of something from one place to another. Whether that happens in a car, on a boat or underground in tanks, moving water, air and fuel only happens as it does with the use of pumps. Take a look at all the things these magical machines do and gain some insight and appreciation for the process.

Industrial Applications

Original equipment manufacturers (OEM) and the distributors of these parts rely on pumps to keep crucial elements of the process running smoothly. Since pumps provide invaluable services such as making sure machinery stays cool or getting fuel safely and efficiently from one point to another, it stands to reason that outfitting a factory or warehouse with Oberdorfer Pumps makes sense whether it’s a new build or a refit. When dealing with thicker fluids with a high viscosity, progressive cavity pumps have the components and power to push things through without seizing or failing. Some uses for industrial pumps include:

  • Oil transfer (high-viscosity)
  • Diesel transfer
  • Coolant transfer (welding)
  • Road saw
  • Air filtration systems

Agricultural Applications

Owning and tending to a farm is not a simple way to make a living. With the help of high-quality pumps, like the Oberdorfer gear pump, taking care of crops and animals is easier. Controlling pests by air is manageable and more efficient. Dairy farms can manage a higher number of bovines with the help of pumps that not only help with the milking process but also with the storage and processing of the milk. Sometimes there may be too much water pooling in one or more areas of the fields. Underground pumping systems can remove water before it becomes toxic to the plants and animals it is meant to serve. Dry rot can be stopped and water-borne illnesses halted by taking away these massive reserves of water. Also, too much standing water is the ideal breeding ground for mosquitos, which can transmit disease among animals and people. Typically, pumps on farms are used for:

  • Humidity and heat controls
  • Mosquito treatment
  • Preservative spray treatments
  • Weed controls

Beverage and Food Industry

You may not realize how many processes Oberdorfer pumps simplify, but when it comes to the food and beverage industry, the assistance offered by these industrial helpers is priceless. These types of machines perform things like cycling liquids such as milk, to remove toxins and filter out chemicals and particles. When it comes to food packing and preservation, nothing can compare to the efficiency, consistency, and safety of pump-driven processes. When a liquid is heated and needs to be brought back down to a lower temp, beverage cooling pumps circulate cold water through coils to expedite the process without sacrificing quality. Other uses in this fashion include:

  • Meat seasoning (brine injection)
  • Maple cream and syrup processing

Aquatic Industry

Who knew boating relied so heavily on pumps? Oberdorfer did, of course. For over a century, the Oberdorfer brand has been providing the marine industry with the tools and technology necessary to operate everything from small private vessels to large transport carriers. The commercial fishing industry wouldn’t be nearly as successful if not for the various applied uses of marine pumps. The centrifugal pumps are the nuts and bolts of every boat engine. The propeller spinning causes the pump to circulate fuel in and through the engine. Without this process, a boat would be dead in the water. In addition, pumps also perform the following functions:

  • Bilge pumping
  • Circulate air conditioning
  • Engine coolant and generator circulating
  • Ice making
  • Human waste transferring
  • Ballast transferring

Infrastructure Maintenance

Ever wonder how airplane wings get de-iced or how large amounts of Epsom salt applied to roadways and bridges in the winter? Gear pumps are essential in maintaining general transportation and infrastructure elements. Toilets on airplanes get flushed with the help of these multi-purpose, multi-functional instruments. The inner design of the pump is anti-corrosive and therefore better able to deal with wet conditions than other options. The last thing you need when tending to icy conditions is a pump failure due to corrosion or water intrusion destroying mechanical components. In aircraft and other larger more complicated engines, centrifugal pumps are integral in keeping engines from overheating by circulating coolant in and transferring hotter vehicle liquids out.

Other Pump Uses

Oberdorfer pumps serve industries beyond what is mentioned above. These machines play a role in many common or general uses. From transferring oil from under the earth to receptacles to the trucks the same oil is put in for transport to refineries, pumps make all facets of commerce and life more manageable. Smaller uses include embalming – something you may have never thought of (or even cared about). The system of pumping blood out in exchange for formaldehyde to preserve a body is all facilitated through the use of pumps. Before these simple yet hearty tools were used, imagine what this process was like.

Common Pump Types

Oberdorfer produces many pump products, but the most common of these are:

  • Gear pumps
  • Centrifugal pumps
  • Flexible impeller pumps
  • Progressive cavity pumps

None of these machines would do the job without an Oberdorfer pump distributor, an integral piece in the relay system. All of these examples above all utilize one or more of these types of pumps.

For over a century, Oberdorfer Pumps has supplied industries and individuals with machines to help simplify the task at hand. The quality of the products produced is unsurpassed. Oberdorfer continues to revolutionize processes, materials, and applications to stay on the cutting edge of new applied uses. Improving their products results in the broader use of the pumps in applications around throughout the world. With the way computers and high-tech gadgets are revolutionizing the world, Oberdorfer continues to remain relevant and keeps pushing forward to supply the type of product that keeps the world turning.

Everything You Need to Know About Centrifugal Pumps

Broadly speaking, centrifugal pumps are the most common pumps in the hydraulic world. Many manufacturers make them, but Oberdorfer Pumps is the brand most trusted for industrial and commercial use. They are designed for low pressure and low viscosity fluid transfer and offer a high flow rate. They’re used for a very wide variety of applications, so anyone who works with fluid transfer will benefit from basic knowledge about how they work and what they’re typically used for.

How a Centrifugal Pump Works

Overall, centrifugal pumps are the most preferred pumps if they can be used, due to the efficiency, reliability and simple design. Inside the pump, the high-speed impeller is the heart of the system. It uses a series of curved veins usually inside a shroud plate, although some use an open or semi-open design.

The impeller is always fully immersed within the fluid being moved. It forces the fluid to rotate inside the housing (always in the same direction as the impeller), imparting centrifugal forces to the fluid to push it out from the center. This is how the mechanical rotating energy of the pump is translated into fluid movement. At the intake, the rotational energy creates a low pressure, drawing the fluid in through the eye. The impeller is carefully fitted to the casing so that the fluid is always forced toward the discharge point.

The casing of the pump is carefully designed for the most efficient transfer of the mechanical energy. The area of the casing increases along the flow direction to accommodate newly added fluids and to reduce the exit flow velocity. This results in an increase in static pressure that’s necessary to overcome the inherent resistance of the pumping system.

Both the casing and impeller are very carefully engineered to build an ideal pressure. If pressure at the intake falls below the vapor pressure of the fluid, the fluid will boil in the low pressure, causing damage to the impeller and shroud plates. It’s called cavitation, and pumps must be precisely engineered to avoid it. It also limits the suction at the intake point.

A shaft connects the motor to the pump. The shaft seals must be designed to match the fluid type and design pressure of the pump. The shaft is always on one side only and is connected as a cantilever. Therefore, the shaft only has a bearing on one side (having one on the other side blocks the intake), so high flow pumps need a bearing housing with cooling oil to reduce excessive wear.

Priming Versus Self-Priming

Priming is essential to the operation of a centrifugal pump, as the water creates its own seal to make the low pressure to draw in more fluid. Oberdorfer Pumps make both self-priming and manually primed pumps, depending on the application and needs of the user.

Cardinal Pump Carries a Range of Oberdorfer Pumps

Cardinal Pump not only sells Oberdorfer pumps, they install and service them. They may be made of bronze or plastic and can be used for many applications, including

  • Marine use
  • Hazardous or toxic material pumping
  • Solvents
  • Sewage or water treatment
  • Agriculture
  • Petrochemical industry

When you require a custom pumping solution, Cardinal Pump has the right Oberdorfer pumps to fit your needs. There are many options available for virtually every industry and business.

Provide Five-Star Service With Top-Notch Water Pumps

Commercial clients demand excellent water. For repair and maintenance businesses to meet this need, they must collaborate with distributors that have the best products in stock. There is a myriad of benefits to working with a distributor who offers Oberdorfer Pumps and other quality pumps and valves.

Choose A Distributor That Can Do It All

Water problems are no easy fix. One common issue, for example, is reduced water flow. Repair professionals often have to identify what is causing the block. It might be a crack or leak in the pump. Or, the hose or line that is attached to the pump might be the wrong size. It can even be something as extreme as improper installation of the pump; if it’s more than 20 feet from the water source then there is a risk of a low flow rate.

Fortunately, there are distributors prepared for the dirty work. A quality distributor can provide a range of products and services to ensure a consistent and clean water line to any property. This might entail offering replacement Oberdorfer Pumps or completing a total rebuild. A distributor can even design a custom system for clients.

Complete Projects in Less Time

When maintenance and repairs teams are unorganized, then it takes longer to complete projects. This results in wasted money and energy. Working with a distributor that is responsive, dependable and enthusiastic makes it easier for a team to complete a job to the highest standards and with utmost efficiency. In fact, a distributor can affect the reputation and profit margins of maintenance professionals in a big way. Oberdorfer Pumps are known for their premium engineering and longevity, so working with a distributor that can give professionals this product whenever it’s requested can have huge payoffs.

Imagine tackling every project with a fresh slate. Although this might seem intelligent at first glance, it has the potential to derail a business. Searching for the necessary pumps or a collaborator with the right expertise can lead professionals down the wrong road. Experimenting with new installation and building techniques can lead to client dissatisfaction and lost money. Rather, a project has the most chance of success when the process for repairing or inspecting a pump is automatized. An automatized routine improves quality control and cannot be done without a trusted distributor.

Find Oberdorfer Pumps To Exceed Performance Expectations

Oberdorfer is a major brand that developed by testing its products to solve big problems. Professionals can browse a wide range of goods for any need, whether it’s to remove caustic waste at a factory facility or transport water for agriculture crops. Technicians can appreciate the centrifugal, filter-press, cavity and Hastelloy C options that are forged from solid materials such as iron, bronze and steel. Finding the right fit is a breeze with such a large inventory and a name that has stayed strong for over 100 years.

A distributor who offers Oberdorfer Pumps and other top-ranked brands can work with repair and maintenance businesses to keep the life source of a commercial enterprise flowing. Distributors who understand how to provide water for their clients can save these businesses time and money.

The company is the world’s best Slurry Pump Wet Parts supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.