Easy Source Fluid Flow Control - Centrifugal Pump
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| Centrifugal Pump | |
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Centrifugal Pump - The centrifugal pump consists of an impeller blades fixed on a rotating shaft and enclosed in a casing; has a central inlet and a peripheral discharge connection. The rotating impeller creates flow in the liquid by the velocity derived from centrifugal force; the greater the rpm, the higher the head against which the centrifugal pump can deliver; special types for "chopper" and "pulverizing" applications. |
ITT Goulds Pumps
Centrifugal pumps fundamentals; Introduces basic information on head, capacities, speeds, Affinity Laws, Pump and System CurvesProduct(s) / Service(s): goulds pumps
Source / Origin of Design: unknown
Contact Information:
ITT - Goulds Pumps Headquarters
240 Fall St.
Seneca Falls, New York 13148
Telephone: (315) 568-2811
FAX: (315) 568-2418
Web Site: http://www.gouldspumps.com/cat_pf_0001.html
Peerless Pump, Inc.
Since 1923, Peerless Pump Company has provided a wide range of industries with the highest quality pumps, packaged pumping systems, parts and service. As recognized leaders in pump design, performance and innovation, Peerless Pump continues to lead the industry.Product(s) / Service(s): pumps, packaged pumping systems, parts and service
Source / Origin of Design: unknown
Contact Information:
800-879-0182
Web Site: http://www.peerlesspump.com/
Myers Pentair Water
Myers offers an extensive line of single and multi-stage centrifugal pumps. Myers centrifugal pumps have earned a reputation for dependable and efficient performance in demanding continuous service applications. Myers offers complete pump and motor assemblies or pump-end kits for mounting to customer supplied motors.Product(s) / Service(s): centrifugal pumps
Source / Origin of Design: unknown
Contact Information:
1101 Myers Parkway
Ashland, Ohio 44805
Phone: 419-289-1144
Fax: 419-289-6658
Web Site: http://www.femyers.com/Products/centrifugal/centrifugal.html
Sulzer
Sulzer Pumps is one of the worlds leading pump manufacturers; Our focus is specialized centrifugal pumps and agitators/mixers for the Oil & Gas, Hydrocarbon Processing, Pulp & Paper, Power Generation, Water & Wastewater and Food, Metals & Fertilizer markets.Product(s) / Service(s): specialized centrifugal pumps and agitators/mixers
Source / Origin of Design: unknown
Contact Information:
Sulzer Process Pumps (US) Inc.
667 Bay Road Unit 3A
NY 12804 Queensbury
New York USA
+1 518 745 3160
Web Site: http://www.sulzerpumps.com/desktopdefault.aspx
Kiwi Pumps
We offer centrifugal pumps with low cost, balanced constriction and less maintenance cost. We manufacture water pumps with less weight, easy assembling and energy efficient radial and mixed flow models. The water pumps are applicable for water supply to commercial establishments like hotels, lodging and hospitals. Our range of water pumps also include open well submersible pumps, centrifugal pumps and domestic monoblock pumps.Product(s) / Service(s): water pumps, submersible pumps
Source / Origin of Design: unknown
Contact Information:
Opp. Decora Paints, Near S.T. Workshop,
Gondal Road, Rajkot - 360 004
Gujarat. India.
+ 91 - 281 - 2372564 / 2386381
Web Site: http://www.kiwipumps.com/
Dickow Pump Company
Dickow Pump Company has produced pumps for over 75 years. Our pumps are working steadily and dependably in all corners of the globe. As the technical world leader in magnetic drive pumps, Dickow holds many patents, is ISO 9001 certified, and is a partner of major chemical companies.Product(s) / Service(s): pumps
Source / Origin of Design: unknown
Contact Information:
Dickow Pump Company, Inc.
1738 Sands Place
Marietta, GA 30067 USA
Toll Free 877-952-7903
Local 770-952-7903
Fax 770-933-8846
Web Site: http://dickow.com/
Blackmer
Blackmer was incorporated in 1903 and is the leading manufacturer of positive displacement pumps, centrifugal pumps and compressors for the transfer of liquid and gas products.Product(s) / Service(s): positive displacement pumps, centrifugal pumps, compressors
Source / Origin of Design: Unknown
Contact Information:
Not Available
Web Site: http://www.blackmer.com/tech-centrifugal.jsp
Micropump, Inc.
For high flow applications requiring design simplicity, Micropump's centrifugal pumps can handle flow rates to 27 L/min (7.1 gpm).Product(s) / Service(s): centrifugal pumps
Source / Origin of Design: unknown
Contact Information:
US: 360.253.2008
UK: 011.44.1480.356600
Web Site: http://www.micropump.com/products/pumps/centrifugal/
Metpro Corporation, Fibroc Division
The world's most complete line of non-metallic, fiberglass reinforced, thermoset vinyl ester/epoxy pumps for handling corrosive and other difficult liquids.Product(s) / Service(s): corrosion-resistant fiberglass pumping equipment
Source / Origin of Design: unknown
Contact Information:
Fybroc Division, Met-Pro Corporation
700 Emlen Way
Telford, PA 18969
Toll Free: 1-800-FYBROC1, 1-800-392-7621
Phone: 215-723-8155
Fax: 215-723-2197
Web Site: http://www.fybroc.com/
Flygt USA
The pumps in the C3000 Series of large centrifugal pumps are used primarily for pumping sewage, waste water, and storm water in municipal stations. Other application areas for this broad assortment of highly reliable pumps include raw-water handling, agriculture, aquaculture, irrigation and industry. The pumps in this series have capacities ranging from 100 to 2000 liters per second. For applications in explosive enviroments, C Series pumps can be supplied in EX-approved (explosion-proof) versions.Product(s) / Service(s): large centrifugal pumps
Source / Origin of Design: unknown
Contact Information:
ITT Flygt Corporation
35 Nutmeg Drive. Box 1004
Trumbull, CT 06611-0943
Web Site: http://www.flygtus.com/115320.asp
Vanton
Thermoplastic Pumps for corrosive chemicals, acids, caustics, salts, chlorides, halogens, ultrapure water and other aggressive process and waste fluids.Product(s) / Service(s): pumps
Source / Origin of Design: unknown
Contact Information:
201 Sweetland Avenue, Hillside, New Jersey
07205 USA
Telephone: 908-688-4216
Web Site: http://www.vanton.com/
Metpro Sethco Division
Sethco is a leading manufacturer of corrosion resistant pumps and filtration systems for pumping, transferring and filtering a wide range of industrial corrosive liquids.Product(s) / Service(s): drum pumps, magnetic drive pumps, vertical and horizontal centrifugal pumps, sump pumps, cartridge and bag filter chambers, in-tank/out-of-tank filtering systems, carbon purification/filtration chambers and systems, and custom filter systems plus replacement filter bags, cartridges and media
Source / Origin of Design: unknown
Contact Information:
Sethco Division
800 Emlen Way
Telford, Pennsylvania 18969
Toll Free: 800-645-0500
Fax: 215-799-0920
Web Site: http://www.sethco.com/
Gorman-Rupp Industries
Typical applications include commercial and residential heating and cooling systems, commercial coffee urns, ice makers, dish and glassware washers, laundry appliances, plating systems, agricultural sprayers and industrial floor scrubbers.Product(s) / Service(s): centrifugal pumps
Source / Origin of Design: unknown
Contact Information:
unavailable via this url
Web Site: http://www.gripumps.com/products/centrifugal.shtml
SPX Process Equipment
SPX Process Equipment is a leading, global manufacturer of fluid handling, processing, mixing, and blending equipment for beverage, food, chemical, pharmaceutical, industrial, petrochemical, mining, and wastewater enterprises.Product(s) / Service(s): Waukesha Cherry-Burrell Products
Source / Origin of Design: unknown
Contact Information:
611 Sugar Creek Road
Delavan, WI 53115
Phone: 800.252.5200 or 262.728.1900
Fax: 800.252.5012 or 262.728.4904
Web Site: http://www.spxprocessequipment.com/sites/wcb/products/pumps/centpump.asp
Lowara srl
Lowara pumps are manufactured in AISI 304 and 316 fabricated stainless steel, that covers many applications from water to some chemical compositions.Product(s) / Service(s): pumping systems
Source / Origin of Design: unknown
Contact Information:
Lowara srl
36075 Montecchio Maggiore
Vicenza - Italy
Phone +39 0444 707111
Fax +39 0444 492166
Web Site: http://www.lowara.com
Hydra-Cell.com / Wanner Engineering
The ANSI pump that sets the industry standard for corrosive and abrasive process fluid applicationsProduct(s) / Service(s): Stancor ANSI Centrifugal Pumps
Source / Origin of Design: unknown
Contact Information:
Wanner Engineering, Inc.
1204 Chestnut Avenue,
Minneapolis, MN 55403 USA
Tel (612) 332-5681 -
FAX (612) 332-6937
Toll Free FAX (USA only) (800) 332-6812
Web Site: http://www.hydra-cell.com/product/stancor-ANSI-centrifugal-pumps.html
Packo
Experience and know-how - over 50 years of research, development, innovation, manufacturing, sales and servicing - highly skilled, professional people, cutting-edge machinery incorporating the latest technology are framed in a total quality approach.Product(s) / Service(s): polished stainless steel pumps
Source / Origin of Design: unknown
Contact Information:
Packo Inox NV
Torhoutsesteenweg 154
8210 ZEDELGEM
BELGIUM
Tel. +32-50-25 06 00
Fax +32-50-20 12 45
Web Site: http://www.packo.com
Grundfos
Portal page for the Grundfos website.Product(s) / Service(s): more information on website
Source / Origin of Design: more information on website
Contact Information:
more information on website
Web Site: http://www.grundfos.com/
Imo Pump
Imo Pump manufactures rotary positive displacement 3-screw and gear pumps . Industries served include hydrocarbon and chemical processing, crude oil transport, Navy and commercial marine, power generation, pulp and paper, hydraulic elevator and general machinery.Product(s) / Service(s): rotary positive displacement 3-screw and gear pumps
Source / Origin of Design: unknown
Contact Information:
representation locator on website
Web Site: http://www.imo-pump.com/
Wilfley
Wilfley manufactures centrifugal pumps with advanced seal technology for abrasive and corrosive applications.Product(s) / Service(s): centrifugal pumps
Source / Origin of Design: Unknown
Contact Information:
Not Available
Web Site: http://www.wilfley.com/
Rovatti A. & Figli Pompe S.p.A.
A range of centrifugal pumps for clean water. Submersible and vertical pumps for deep wells and horizontal single/multistage pumps for surface installations. Driven by electric motors and internal combustion engines, tractor PTO, etc.Product(s) / Service(s): centrifugal pumps
Source / Origin of Design: unknown
Contact Information:
Rovatti A. & Figli Pompe S.p.A.
42042 - FABBRICO (Reggio Emilia) - ITALY
Tel. +39 0522 665000
Fax +39 0522 665020
Web Site: http://www.rovatti.it/
Pacer Pumps
Pumps for Transferring, Recirculating, Spraying, Cleaning or Filtering and Metering. Some pumps are big and burly, others pumps are slim enough to fit narrow neck carboys. Horizontal Centrifugal Pumps direct drive with single seals or Magnetic Seal-less Pumps. Self-priming Centrifugal Pumps or Immersion Cantilevered Pumps with single bearings, for hot or cold solutions.Product(s) / Service(s): corrosive resistant pumps
Source / Origin of Design: unknown
Contact Information:
41 Industrial Circle, Lancaster PA 17601
1-800-233-3861 | Tel: 1-717-656-2161
Fax 1-717-656-0477
Web Site: http://www.pacerpumps.com
Flowserve
Was known as the DURCO.Applications: Acid Transfer, Aquariums, Chemical Processing, Chlor-alkali, General Purpose, General Processing Industry, Water Treatment, Hydrocarbon Processing, Polymers, Petrochemical Processing, Slurries, Solvents, Sump Service, Tank Car Unloading.Industries: Desalination, Ground Water Development and Irrigation, Wastewater Collection and Treatment, Snowmaking, Water Supply and Distribution, Water Treatment.Product(s) / Service(s): Mark 3 Unitized Self Priming Pump
Source / Origin of Design: unknown
Contact Information:
Flowserve World Headquarters
5215 N. O'Connor Blvd., Suite 2300
Irving, TX 75039
Phone: (972) 443-6500
Fax: (972) 443-6800
Web Site: http://www.flowserve.com/eim/v/index...
Ansimag
ANSIMAG produces magnetically driven non-metallic centrifugal pumps. Exceptionally innovative, the ANSIMAG Pump Family features a remarkably simple design.Product(s) / Service(s): magnetically driven non-metallic centrifugal pumps
Source / Origin of Design: Unknown
Contact Information:
Not Available
Web Site: http://www.ansimag.com/
Carver
Today, we are recognized as one of the world's leading centrifugal pump companies, building pumps to the most demanding engineering specifications and military standards in the world.Product(s) / Service(s): centrifugal pumps
Source / Origin of Design: Unknown
Contact Information:
Not Available
Web Site: http://www.carverpump.com/
Edur
The EDUR-Pumpenfabrik is a renowned medium-sized pump manufacturer producing centrifugal pumps and liquid-ring vacuum pumps for the world market since 1927.Product(s) / Service(s): centrifugal pumps and liquid-ring vacuum pumps
Source / Origin of Design: Unknown
Contact Information:
Not Available
Web Site: http://www.edur-pumpen.de/
Fristam Pumps
Fristam Pumps is a leading international manufacturer of high performance, sanitary, stainless steel centrifugal pumps and positive displacement pumps, blenders and mixers.Product(s) / Service(s): centrifugal pumps, positive displacement pumps, blenders and mixers
Source / Origin of Design: Unknown
Contact Information:
Not Available
Web Site: http://www.fristampumps.com/
Hydra-Tech
From vortex flow, solids handling pumps to high volume axial flow models, to high head water pumps, centrifugal pumps, screw pumps and models with agitators to pump sand and slurries, we offer the widest variety of models to handle the most demanding jobs.Product(s) / Service(s): solids handling pumps
Source / Origin of Design: Unknown
Contact Information:
Not Available
Web Site: http://www.hydra-tech.com/
Oberdorfer
Gear pumps, centrifugal pumps, etc.Product(s) / Service(s): Gear pumps, centrifugal pumps, etc
Source / Origin of Design: gears and bodies form materials used in process industries
Contact Information:
Not Available
Web Site: http://www.oberdorfer-pumps.com/
Price®
Price® Pump Company is a leading manufacturer of 50 & 60 Hz Centrifugal pumps as well as Air Operated Diaphragm (AODD) pumps. Our pumps are suitable for liquids ranging from water, oils, solvents, and chemicals to strong acid or alkaline solutions. Our pumps offer dependability and quality at a very competitive price.Product(s) / Service(s): Centrifugal pumps, Air Operated Diaphragm (AODD) pumps
Source / Origin of Design: Unknown
Contact Information:
Not Available
Web Site: http://www.pricepump.com/
Sanwa
Each and every technologies, know-how and expertise are incorporated into SANWA PUMP lineup, which makes the best brand in centrifugal pumps.Product(s) / Service(s): centrifugal pumps
Source / Origin of Design: Unknown
Contact Information:
Not Available
Web Site: http://www.sanwapump.com/
SOMEFLU
SOMEFLU has been specialized for more than 30 years in the design and the manufacturing of corrosion resistant centrifugal pumps made of stainless steel or plastic.Product(s) / Service(s): corrosion resistant centrifugal pumps
Source / Origin of Design: Unknown
Contact Information:
Not Available
Web Site: http://www.someflu.com/
Centrifugal Pump
As the name suggests, a turbopump comprises basically two main components: a pump and a driving turbine, both mounted on the same shaft. A turbopump can refer to either of two types of pumps. Turbomolecular pumps are also called turbopumps and are used to obtain high vacuum. Another type of turbopump is a centrifugal or axial pump. Turbopumps were originally developed for fire fighting for pumping water at high rates and pressures.
For rocket motors, the initial breakthrough for turbopumps used in rocket motors occurred under Dr. Walter Thiel, during the development of the V2 in Germany. Prior to Dr. Thiel's work, pressurized tanks had been used. The early rocket turbopumps were slightly modified turbopumps originally intended for pumping water. Using turbopumps in rockets was a breakthrough; the power of the rocket motors was increased by an order of magnitude, making the lifting of heavy loads practical.
The principal engineer for turbopump development at Aerojet was George Bosco. During the second half of 1947, Bosco and his group learned about the pump work of others and made preliminary design studies. Aerojet representatives visited Ohio State University where Florant was working on hydrogen pumps, and consulted Dietrich Singelmann, a German pump expert at Wright Field. [51] Bosco subsequently used Singelmann's data in designing Aerojet's first hydrogen pump. By mid-1948, Aerojet had selected centrifugal pumps for both liquid hydrogen and liquid oxygen. They obtained some German radial-vane pumps from the Navy and tested them during the second half of the year. By the end of 1948, Aerojet had designed, built, and tested a liquid hydrogen pump (15 cm diameter). Initially, it used ball bearings that were run clean and dry, because the low temperature made conventional lubrication impractical. The pump was first operated at low speeds to allow its parts to cool down to operating temperature. When temperature gauges showed that liquid hydrogen had reached the pump, an attempt was made to accelerate from 5000 to 35 000 revolutions per minute. The pump failed and examination of the pieces pointed to a failure of the bearing, as well as the impeller. After some testing, super-precision bearings, lubricated by oil that was atomized and directed by a stream of gaseous nitrogen, were used. On the next run, the bearings worked satisfactorily but the stresses were too great for the brazed impeller and it flew apart. A new one was made by milling from a solid block of aluminum. Time was running out, as the contract had less than six months to go. The next two runs with the new pump were a great disappointment; the instruments showed no significant flow or pressure rise. The problem was traced to the exit diffuser of the pump, which was too small and insufficiently cooled during the cool-down cycle so that it limited the flow. This was corrected by adding vent holes in the pump housing; the vents were opened during cool down and closed when the pump was cold. With this fix, two additional runs were made in March 1949 and both were successful. Flow rate and pressure were found to be in approximate agreement with theoretical predictions. The maximum pressure was 26 atmospheres and the flow was 0.25 kilogram per second.
Most turbopumps are centrifugal - the fluid enters the pump near the axis and the rotor accelerates the fluid circumferentially and compresses it against the rim, generating high pressures (hundreds of bar is not uncommon), and if the outlet backpressure is not too high, high flow rates.
Axial turbopumps also exist - in this case the axle has essentially propellers attached to the shaft and the fluid is forced by these parallel with the main axis of the pump. Generally, axial pumps tend to give much lower pressures than centrifugal pumps, a few bar is not uncommon. However they are still useful - axial pumps are commonly used as 'inducers' for centrifugal pumps; these raise the inlet pressure enough to prevent excessive cavitation from occurring within the centrifugal portion of the pump.
Turbopumps have a reputation for being extremely hard to design to get optimum performance. Whereas a well engineered and debugged pump can manage 70-90% efficiency, figures less than half that are not uncommon. Low efficiency may be acceptable in some applications, but in rocketry this is a severe problem. Turbopumps in rockets are important and problematic enough that launch vehicles using one have been caustically described as a 'turbopump with a rocket attached'- up to 50% of the total cost has been ascribed to this area.
Common issues include:
1. excessive flow from the high pressure rim back to the low pressure inlet along the gap between the casing of the pump and the rotor
2. excessive recirculation of the fluid at inlet
3. excessive vortexing of the fluid as it leaves the casing of the pump
In addition, the precise shape of the rotor itself is critical.
Steam turbine powered turbopumps do exist and are employed when there is a source of steam, e.g. the boilers of steam ships. Nowadays gas turbines are usually used when electricity or steam is not available and place or weight restrictions permit the use of more efficient sources of mechanical energy.
One of such cases are rocket engines which need to pump fuel and oxidizer into their combustion chamber. This is necessary for large liquid rockets, since forcing the fluids or gases to flow by simple pressurizing of the tanks is often not feasible: The high pressure needed for the required flow rates would need strong and heavy tanks.
Ramjet motors are also usually fitted with turbopumps, the turbine being driven either directly by external freestream ram air or internally by airflow diverted from combustor entry. In both cases the turbine exhaust stream is dumped overboard.
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