Centrifugal Pumps & Centrifugal Pump Suppliers
What is a Centrifugal Pump?
Centrifugal pumps are the most common type of pump. A centrifugal pump uses one or more impellers. The impeller attaches to and rotates with the shaft providing the energy that moves liquid through the pump and pressurizes the liquid to move it through the piping system.
Centrifugal pumps are usually quick to install, require less maintenance than other alternatives, and the most standard centrifugal pumps are easy to repair. Centrifugal pumps are usually the best choice for lower viscosity (thin) liquids and high flow rates. They are used in many residential, commercial, industrial, and municipal applications. Multi-stage centrifugal pumps have more than one impeller, and are used for applications that require higher pressure or head.
Centrifugal pumps generally work within the following ranges:
- Flow rate ranges between 5 and 200,000 gpm
- Total head (pressure) ranges between 10 and 7,500 ft
- Horsepower ranges between 0.125 and 5,000 hp
Centrifugal pumps are offered in a wide range of material options, ranging from various plastics and cast iron or stamped stainless steel for lighter duties - to bronzes, stainless steels, exotic alloys, and specialty plastics for more corrosive, abrasive, hygienic, or other difficult applications.
Piping connections on centrifugal pumps are available with standard pipe threads on smaller sizes, and flanges on larger sizes. Specialty connections are available from some pump manufacturers for particular applications. The normal drivers supplied with centrifugal pumps are A.C. induction motors, but some pump manufacturers offer pumps with D.C. drives or adaptable to other power transmission devices such as engines and gear boxes.
How does a Centrifugal Pump work?
A centrifugal pump works by directing the liquid in the system into the suction port of the centrifugal pump and from there into the inlet of the impeller. The rotating impeller moves the liquid along the spinning vanes, which increases the velocity energy of the liquid. The liquid leaves the impeller vanes and then moves into the pump volute or diffuser casing, where the high velocity of the fluid is converted into high pressure through a diffusion process. The fluid is then guided into the discharge port of the centrifugal pump and from there out into the system, or on to the next stage in the case of a multi-stage centrifugal pump.
What types of Centrifugal Pumps are available?
There are dozens of types of centrifugal pumps, including: ANSI process pumps, API process pumps, radial pumps, axial flow pumps, booster pumps, canned motor pumps, chopper pumps, circulator pumps, drum pumps, end suction pumps, fire pumps, grinder pumps, horizontal split case pumps, jet pumps, magnetic drive pumps, multistage pumps, regenerative turbine pumps, slurry pumps, self-priming pumps, submersible pumps, trash pumps, vertical sump pumps, vertical turbine pumps, and well pumps.
A-L-L Equipment, Inc. sells pumps and equipment throughout the Midwest. A-L-L Equipment, Inc. offers 28 different pump types including: ANSI Process Pumps, API Pumps, Axial Flow Pumps, Booster Pumps, Canned Motor Pumps, Chopper Pumps, Circulator Pumps.
ABS USA is a worldwide leader in the design and manufacturing of centrifugal pumps. The company makes available several types of centrifugal pumps including trash pumps, submersible pumps, mixed flow pumps, grinder pumps, and much more.
Ace Pump manufacturers an extensive line of centrifugal pumps. The company offers centrifugal pumps that are hydraulic driven, belt driven, magnetic driven, gasoline engine driven, and electric driven. Ace Pump centrifugal pumps are used in chemical, air conditioning and refrigeration applications.
Allesco is a leading pump distributor offering several centrifugal pumps to meet your needs. The company sells several types of centrifugal pumps including end suction pumps, magnetic drive centrifugal pumps from Lutz-JESCO, ANSI pumps from Dean Pump and much more.
American Industrial Pumps distributes centrifugal pumps from a wide range of manufacturers. The company sells slurry centrifugal pumps from Atlas; centrifugal pumps for the agriculture market from Berkeley; Gould's centrifugal pumps; hard chrome centrifugal slurry pumps from National Oilwell; corrosion resistant process centrifugal pumps from Shanley Pumps and much more.
American Machine & Tool (AMT) manufactures 1" self-priming stainless steel centrifugal pumps to handle fluids with specific gravities to 1.6. Models 429A thru 429N feature Viton mechanical seals and O-rings, ODP & TEFC motors, maximum pressure 75 psi designed for perchloroethylene (PCE) use in the chemical process, commercial and general industries.
Cat Pumps offers several models of centrifugal pumps. Cat Pumps produces its K-Series end suction and submersible centrifugal pumps.
Dynaflow Engineering is a pump distributor of positive displacement pumps and centrifugal pumps. The company is located in Middlesex, NJ. Dynaflow Engineering offers 4 different pump types including: Magnetic Drive Pumps, Regenerative Turbine Pumps, Gear Pumps, Metering Pumps.
Efkay Sales & Associates sells several centrifugal pumps from Liberty Pumps and Davey Pumps. The company offers submersible pumps, sump pumps, and many other types of centrifugal pumps.
Finish Thompson manufacturers a wide range of industrial process pumps, including a line of centrifugal pumps in both a horizontal and vertical configuration. Finish Thompson's centrifugal pump line includes magnetic drive pumps, self priming pumps, ANSI process pumps, and end suction pumps.
General Air Products sells a wide range of centrifugal pumps. The company offers the CDU end suction centrifugal pump for general water applications; the DWO open impeller end suction centrifugal pump; the 2CDU stage end suction centrifugal pump for pressure boosting applications and much more.
Gorman-Rupp manufacturers a number of centrifugal pumps. Gorman-Rupp's standard centrifugal pump products including: 50 series for high head applications with clean liquids; 60 series centrifugal pump for medium to high head applications; VG series which is an end suction - high efficiency pump; VGH series heavy duty for dirty liquids; OTS standard centrifugal pump.
Griswold Pump manufacturers a full line of centrifugal pumps. The company offers end suction centrifugal pumps, self-priming centrifugal pumps, submersible turbine pumps, vertical turbine pumps and ANSI pumps. The company serves a wide range of industrial applications.
Integrated Process Solutions distributes pumps for March Pumps, Ampco, Pacer, Grundfos, KNF, Standard Pump and more. Integrated Process Solutions offers 8 different pump types including: Booster Pumps, Drum Pumps, Magnetic Drive Pumps, Multistage Pumps, Diaphragm Pumps, Peristaltic/Hose Pumps, Metering Pumps.
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Laborde Products distributes diesel powered equipment and engines for the industrial and marine industries. Laborde Products offers 10 different pump types including: Circulator Pumps, Self-Priming Pumps, Slurry Pumps, Trash Pumps, Vertical Sump Pumps, Well Pumps, Piston Pumps.
Lee Mathews, a Cogent Company sells and services fluid equipment to the municipal, industrial, commercial and residential markets. Lee Mathews, a Cogent Company offers 34 different pump types including: ANSI Process Pumps, API Pumps, Axial Flow Pumps, Booster Pumps, Canned Motor Pumps, Chopper Pumps, Circulator Pumps.
Mechanical Equipment Company (MECO) sells and services skid mounted pump systems for the fire protection, commercial, industrial markets and more. Mechanical Equipment Company (MECO) offers 36 different pump types including: ANSI Process Pumps, API Pumps, Axial Flow Pumps, Booster Pumps, Canned Motor Pumps, Chopper Pumps, Circulator Pumps.
OTP Industrial Solutions distributes pumps, industrial equipment, power transmission, motion control and other products. OTP Industrial Solutions offers 34 different pump types including: ANSI Process Pumps, API Pumps, Axial Flow Pumps, Booster Pumps, Canned Motor Pumps, Chopper Pumps, Circulator Pumps.
River City Pump & Supply sells a number of different centrifugal pump types from leading centrifugal pump manufacturers. The company offers stainless steel end suction centrifugal pumps from Goulds Pumps, sump and sewage centrifugal pumps from Hydromatic Pumps and much more.
Robert Brown Associates, Inc. is a leading supplier of pumps and pump systems, including: sewage lift stations, sump pump systems, water pumping systems and more. Robert Brown Associates, Inc. offers 26 different pump types including: ANSI Process Pumps, Booster Pumps, Chopper Pumps, Circulator Pumps, Drum Pumps, End Suction Pumps, Grinder Pumps.
Site Drainer manufacturers dewatering pump systems. Site Drainer offers 2 different pump types including: Submersible Pumps, Vertical Sump Pumps.
Sundyne manufacturers centrifugal pumps for the chemical process, general industrial, pharmaceutical, oil and gas, water resources, and pulp & paper markets. Sundyne's centrifugal pump product line includes an API 610, general industry high pressure centrifugal, low flow centrifugal pump, heavy duty process pump, centrifugal OH1 pumps, self-priming centrifugal pumps, sealless API 685 mag drive pumps and more.
Trask-Decrow Machinery distributes pumps, compressors, and parts for process applications. Trask-Decrow Machinery offers 33 different pump types including: ANSI Process Pumps, API Pumps, Axial Flow Pumps, Booster Pumps, Canned Motor Pumps, Chopper Pumps, Circulator Pumps.
Expert Advice
Centrifugal pumps can sometimes be noisy, perform poorly, break shafts, and cause other problems. This is often due to one of many pump suction conditions.
Dr. Lev Nelik recommends some valuable steps you can take to extend the life of your pump and ensure its operating under optimum conditions.
J. Hamilton Wright shows us some of the benefits that self-priming, centrifugal pumps can offer in industrial plants.
Industry Updates
Pump manufacturer Sulzer has introduced the SMD -- a single stage, axially split double suction pump designed for raw or clean water applications. The SMD pump range is an extension of Sulzer's traditional SM and SMN series.
Pump industry media veteran launches EmpoweringPumps.com as a global pump industry portal.
The new Mud Sucker 3 and 4 series diaphragm pumps can help governments and small businesses save on spare parts costs.
Pump Tweets
Bell & Gossett sets the Fall 2011 course training schedule for its Little Red Schoolhouse Education Center in Morton Grove, Illinois. The seminars deliver various pump and system topics to engineers, contractors and facility maintenance professionals. Visit http://completewatersystems.com/brands/bell-gossett/ for more details.
Versa-Matic unveils a new air-operated double diaphragm (AODD) pumps featuring the company's Elima-Matic Air Valve system. A company press release states that the Elima-Matic Air Valve system improves air efficiency and features a removable air valve sleeve and modular pilot and optional stainless steel air sections for harsh environments.
Sulzer agrees to purchase Spanish pump company Hidrotecar SA. With the acquisition hopes to improve its water pump business throughout Europe, Middle East and Aftrica.
According to a company press release, Jeff Wiemelt will assume the role of president for the Sundyne on January 1, 2012. Wiemelt previously held vice president and general manger of Sundyne Americas and Sundyne Dijon in France.