Dorr-Oliver Eimco®

Pumps

Efficient transportation of liquid/solid slurries

Dorr-Oliver Eimco®

Pumps

Our CompanyDorr-Oliver Eimco (DOE) is a leading supplier of high performance liquid/solid separation equipmentand process systems. One of these leading technologies is our pump product line which helps ourcustomers transport liquid/solid slurries to their desired destination. Dorr-Oliver Eimco traces itshistory in pump manufacturing to 1915, when Edward L. Oliver developed a line of centrifugal pumpsto support the filter business. Some of the original Dorrco™ pumps are still in operation today! DOEcontinues to specialize in pumps that are rugged and durable, handling heavy slurries, extremelycorrosive or abrasive materials, and can solve your specific pumping challenges in a unique way. Ourdedicated pump production team manufactures DOE pumps to precise specifications and tolerancesto meet your stringent requirements.

ApplicationsDorr-Oliver Eimco pumps are widely implemented in a variety of industries including:

• Water and wastewatertreatment–sludge trans-fer handling, chemicalfeed, and transport ofaqueous solutions con-taining a high percentageof impurities.

• Pulp and paper–The DOEGorator® unit is used todefiberize broke, reduceknot rejects to fiber, andbreak up black liquorclumps.

• Mineral processing–thickener underflow andtransport of most basicmetals and mineral slurries.

• Chemical processing–transport of acids, alkalies,chlorine compounds, anda variety of other difficult to handle, severely corrosive, and abrasive materials.

• Food processing–movement of a variety of food products from coffee grounds to corn fiber.• General industries–Dorr-Oliver Eimco pumps transport a variety of products and slurries which

include plating solutions, foundry sands, pickle liquors, scrubber system sludges, dipping compoundsand flocculants among numerous other applications.

Pumps have been our business for over 90 years…

Doxie® C

yclones

Merco® S

trainers

Centrifugal P

umps – Type L

Eimco

® Filtrate P

ump

Centrifugal P

umps – Type RB

Olivite™ C

entrifugal P

umps – ANSI/AVS

Olivite™ C

entrifugal P

umps – OB-1

Dorrco

™ Pumps – Types RM, S

, VM, W

Gorator® P

umps

Sulzer Disintegrators

ODS® P

umps – Standard

ODS® P

umps - Sprin

g Assist

ODS® P

umps – Air Cylin

der Assist

DOE Pump Types

Choose the Best Pump for Your Particular Application

Sludge Applications

Slurry Applications

Filtrate Applications

Fluid Applications

Fluid

Filtrate

Slurry

Sludge

2

Pulse Transfer Thickening: the ODS® PumpThis air-operated diaphragm pump is superior tocentrifugal and helical screw pumps for heavy-duty applications and better than mechanicallyor hydraulically operated pumps due to its sim-plicity of control and evenly distributed powertransmission.

Principal BenefitsDesigned and built for long-term, year-in-yearout, heavy-duty performance, the ODS Pump de-livers more process efficiency requiring minimalmaintenance. It lasts longer and pumps slurriesno other pump can handle.

• The ODS Pump can be automated to matchcapacity to process requirements for maximumprocess efficiency

• It’s unique construction allows the pump to beoperated dry, indefinitely. It cannot air bind, hasno stator to burn out

• There are no seals, so contamination of pro-cess slurry or the environment from seal leaksis not possible.

• Pump capacity and discharge pressure can beadjusted during operation for maximum flexibility

• Rhythmic plunger-type action minimizes particledegradation of even the most delicate materials

ApplicationsThe ODS pump can handle tough corrosives,abrasives and highly concentrated or unusuallyviscous slurries, extremely volatile slurries anddelicate and unstable slurries. Temperature rangeis up to 200°F and solids content of slurries can beup to 75%. Flow ranges from 0.5 gpm to 180 gpm.

User experience shows the ODS Pump can beused in a variety of applications including chemicalprocessing, wastewater treatment general manu-

The ODS® Air-Operated Diaphragm Pump

facturing, minerals processing and food process-ing. Combined with ODS Pump automatic controls,operators can automatically or remotely adjust air,stroke rate, and pump sequencing, and monitormoisture amounts.

Choose from several check valves and compo-nents to suit your particular application. The ODSPump is available in three basic models andfive sizes.

When equipped with the patented spring assist, the pump is

self-priming and has suction lift up to 10 feet. Capacity in-

creases by 50% due to faster filling action, and easily handles

slurries with high solids concentration and viscosity.

•AIR ASSIST •SPRING ASSIST

3

Disintegrate, Macerate, Shred and PumpThe Gorator® Pump sizes, reduces, disperses,separates, delumps, grinds, chops, maceratesand even pumps. Working on a simple inclinedrotor principle, the Gorator pump is self-cleaning,non-clog, and operates trouble-free under themost difficult conditions.

An impeller, taking the form of aflat plate, is mounted at an obliqueangle on the end of the pumpshaft. Rotation of the impellerproduces a centrifugal actionwhich pumps the material anddischarges it radially throughthe outlet. Notched teeth are lo-cated in peripheral stator bars to chop thematerial during passage through the pump.

Principal BenefitsThe Gorator pump accomplishes three distinctfunctions in one unit, saving on equipment costs.Higher shear performance gives more intensedispersion than with conventional machines. Thecasing is made to open quickly so that it is easy

to inspect, clean and to remove tramp materials.The Gorator Pump is constructed for heavy-dutyapplications providing for a long service life.

ApplicationsThe Gorator Pump can be adapted to meet a widevariety of needs in an ever-increasing number of in-

dustries. It is easily fitted to meetindividual reducing needs by spac-

ing the liner bars to exactly the posi-tion required for various size particu-

lates.

Wood chips, synthetic fibers, rags,rugs, plastics, raw sludges, slurries,

slaughter-house residue, high-vis-cosity materials, chemical residue, in-

dustrial waste and debris are but a fewof the materials being successfully handled

by the Gorator.

Applications serving the wastewater industry formore than thirty years has proven this ruggedmachine. Material is reduced to a slurry so thatmaterial handling of solids, and process equipmentclogging, is eliminated.

The Gorator® Pump4

Positive Displacement PumpsDorrco™ positive displacement double diaphragmpumps are constructed of extra heavy-duty mate-rials for tough, long-lasting service in extremeenvironments. These pumps can be installed atliquid level in thickener applications to preventflooding or start-up problems. The pump operateswith a smooth action, which prevents agitation andkeeps the slurry from degrading during transport.Dorrco pumps come in two series: Type W and VM.

Principal BenefitsThe Dorrco pump enjoys many advantages overcentrifugal pumps used in heavy-duty service. Be-cause drive motion is at right angles to the dia-phragm, you can expect the diaphragm to have agreater life. Anti-friction ball bearings also providefor a smooth pumping action which reduces fric-tion and wear on moving parts. The Dorrco pumputilizes standard horizontal electric motors forlower power consumption. A stroke adjustmenthandwheel allows for easy adjustment of strokelength to vary discharge rate while the pump isoperating. All components of the pump are aboveground and easily accessed for maintenance.

ApplicationsDorrco Pumps have been used successfully inmetallurgical processes for over sixty years. Thepump can be used with thickener and clarifier

Dorrco™ Diaphragm Pump

Type W Dorrco Pumphandles flow volumesfrom 40 to 600 gpm(9-136 M3/H).Type VM Dorrco Pumpfor flowvolumes of be-tween 9 and 90 gpm(2-20 M3/H).

5underflow, pulp mill liquors, slurries with heavysolids content, abrasive and corrosive alkaline oracid slurries. Flow ranges from 9 gpm (2 M3/H) to600 gpm (136 M3/H) with multiple models are avail-

able for applicationselection. Protectiverubber lining is alsoavailable for acidic/alkaline conditions.

Exacting standards are kept while manufacturingDorrco pumps (pump manufactured in Germany).

•TYPE VM•TYPE W

Handle Corrosive and Abrasive SolidsOlivite™ centrifugal pumps are constructed of heavymetal, and are lined with 1/4-inch highly corrosionand abrasion-resistant liner materials (Kynar®

impeller or Hypalon® liner). Olivite pumps areavailable in direct drive or V-belt design. With theability to handle corrosive and abrasive solids,Olivite pumps are the superior solution for han-dling acids, alkalies and slurries.

Olivite™ OB-1 Pumps – Principal BenefitsThe Olivite OB-1 pump can beoperated under severe hightemperature and high pres-sure conditions due to itsproven design of lightweightKynar impeller reinforced withfine glass or carbon. Can reachmaximum temperatures of 250°Fusing Kynar lining or 215°F withHypalon liner, unless restricted by thecompound being pumped. The heavy-duty con-struction ensures that shape is retained, while itslow weight and highly efficient vane geometry re-duces shaft deflection, resulting in longer bearinglife and improved pump performance.

Olivite™ OB-1 Pumps – ApplicationsThe pump is commonly used with acid, alkalies, andchlorine compounds at maximum pressure of 180psi. Olivite OB-1 Pumps are available in three sizes.

Olivite™ ANSI Pumps – Principal BenefitsThese pumps are designed to ANSI specificationswith back pull out, and include solid Kynar impel-lers for pumping applications involving nearly allcorrosive solutions, hot as well as cold. Our ANSIPump is constructed with vulcanized lining mate-rial (Kynar or Hypalon) mechanically locked intothe ductile iron metal casing so it won’t shake

Centrifugal Pump

loose and enables longer service life. The impellerdesign is optimized for greater efficiency and verylow Net Positive Suction Head (NPSH) and can beadjusted externally, requiring no seal readjustmentor special tools, thus simplifying operation.

Olivite™ ANSI Pumps – ApplicationsBuilt to strict ANSI standards and offering compo-nents that are more flexible and reliable than mostcompetitive pumps, the Olivite ANSI Pump can beused in a wide variety of chemical applications.

Olivite ANSI Pumps are available intwo sizes.

Type L Pumps – Principal BenefitsConstructed of cast iron or 316stainless steel, Type L pumps arelong lasting and essentially main-tenance free. They are designed

for discharge heads up to 120 feetTotal Dynamic Head (TDH) and handle flows

up to 350 gpm. The impellers and casings havebeen designed for maximum NPSH advantage, aswell as trouble-free operation and long life.

Type L Pumps – ApplicationsPrimarily used for pumping filtrates, the Type Lpump’s stainless steel construction is especiallysuited to food and chemical processing applica-tions. Parts are interchangeable on 1-1/2” and 2”models minimizing parts stocking. Mechanicalseals or packed boxes are available for greaterflexibility. Choose from direct connected or op-tional V-belt drive assemblies.

6

Filtrate Pump/Liquid-Solid Separation

Type RB PumpsThe RB pump isdesigned forstraight filtrateto transfer liquidsand light slurries.Its all-metal design delivers as much as 20 yearsof service in constant use.

Principal BenefitsThe specially designed four-vane (open or shrouded)impeller delivers highly efficient operation in liquidhandling applications, while the two-vane impellergently transfers mud type materials with low shear.The pump is designed with a high load rating bear-ing frame, thick walls and rugged volute meaninglonger life, cooler operation, and proper align-ment in spite of pumping strain. The stuffing boxaccepts either packing or mechanical seals forflexibility in service. Cast iron, bronze or stainlesssteel wet-end construction also means flexibility inapplication and resistance to wear and corrosion.Direct drive or V-belt designs are available.

ApplicationsThe Type RB Pump can be used in filtrate transfer,cane mud, and light slurry pumping.

Eimco® Filtrate PumpThis centrifugal pump is flanged directly to thereceiver. The conical impeller is constructed withopen, snail-type plates. This pump typeis specially designed for operat-ing in receivers under vacuumconditions. Our customers usethe Eimco filtrate pump in abroad range of applicationsnot only for filtrates invacuum filter stations but also

for discharging white water of paper machines, forgas treatment plants and many other purposes.

ApplicationsThe pump is commonly used in conjunction withDorr-Oliver Eimco Horizontal Belt Filters.

Doxie® Impurity Eliminator Hydrocyclones–Enhancers to Protect your PumpsProtect mechanical seals or bearings from abrasivedirt and put an end to the constant maintenanceproblems and expenses caused by damaged me-chanical seals or canned pump bearings. DoxieImpurity Eliminators are cyclone separators thatremove solids as small as a few microns in diameterso that only clean fluids reach the rubbing surfacesof expensive equipment. The abrasive particlesare literally spun from the flow by centrifugal force.

Principal BenefitsOur hydrocyclones contain no moving parts, whichmeans there is nothing to adjust, and no main-tenance problems. Each of these hydrocyclonesoffers a relatively low cost answer to removingimpurities from feed streams. As long as there isenough pressure differential to operate a cyclone(more than 20 psi), installation is simple. Threedifferent models are available to meet your specificneeds, pressures and operating temperatures.

Doxie 5Six 10 mm cyclones manifolded in a common pressurizedhousing (patented). Adjustable capacity and self-containedstrainer. Available in 316 SS. Maximum working pressure2,000 psi @ 400°F and 1,000 psi at 800°F temperature.

Doxie Type ASingle 10 mm cyclone machined from a single block of316 SS. Also available in other alloys. Exclusive Dorr-OliverEimco design. Maximum working pressure 2,000 psi @temperatures below 400°F.

Doxie Type PSingle 25 mm cyclone made of nylon or corrosion-resistantKynar construction. Low-cost, rugged separator. Maximumworking pressure 200 psi @ 200°F and 600 psi at ambienttemperature.

7

©2005 Copyright GL&V. All trademarks and registered trademarks mentioned herein, are the property of GL&V, Dorr-Oliver Eimco and their respective owners.The trademarks Kynar and Hypalon are owned by ARKEMA, Inc. and Dupont Dow Elastomers LLC, respectively.

At Dorr-Oliver Eimco we’re particular aboutparts serviceDorr-Oliver Eimco pumps are sold by a global net-work of municipal and industrial representativesin the U.S., Canada, Germany, and Italy. DOE pumprepresentatives can provide local service andassistance in specifying, installing and maintainingyour pump products for maximum process pro-ductivity. We can respond to your inquiries andemergency situations quickly and efficiently. Inour production facility we maintain a stockinginventory of parts and assembly kits to assist yourevery need. And with our automated parts orderentry and tracking system, we can get the rightproduct to you – anywhere in the world.

And we’re more particular about customerserviceWhen you deal with Dorr-Oliver Eimco and ourrepresentatives you can be assured that you’llget up front assistance with all your specificationsand sizing needs. Our pump teams have the ex-pertise and the experience to help solve yourindustry specific pumping objectives. Whereverthere’s a problem, we’re prepared to answer yourcall. Our local representative network will assistyou at all the stages of your project from planningto start up and beyond.

We’re here to serve you…8

Dorr-Oliver Eimco is here to help you with allyour solid/liquid separation needs. Just call usor your nearest Dorr-Oliver Eimco representative.

U.S. 1.610.740.1015 • Canada 1.705.325.6181

Italy +39.02.516821 • Germany +49 (0) 6123 / 975 300

find it all @ www.glv.com