MBN Multistage Ring Section Pumps
Sulzer Pumps
The Heart of Your Process
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Sulzer Pumps
Extensive Knowhow for Many Applications
The development of the MBN pump type was driven by stringent needs from the power generation, the water and the pulp and paper industries.
The MBN multistage ring section pump is ideal for a wide range of applications such as:•Feed water supply in boiler plants•Condensate supply in power sta-
tions and industrial plants•Desalination (Reverse Osmosis)•Shower water in paper mills•High pressure pumps in various
industries
MBN Global Manufacturing Facility
Sulzer Pumps Kotka, Finland
Sulzer Pumps is one of the world leaders in state-of-the-art pump-ing solutions. Combining engi-neering and application expertise, our solutions add value and strengthen the competitive posi-tion of our customers. Thanks to a global network of manufacturing facilities, sales of-fices,servicecentersandrepre-sentatives, we can provide fast responses to customer needs.
Sulzer Pumps is a well-recognized player in the following industries:•Oil and Gas•Hydrocarbon Processing•Pulp and Paper•Power Generation•Water•General Industry•Chemical Process Industry
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MBN Multistage Ring Section Pumps
MBN type pumps are horizontal, radially split, ring section pumps with modular design.
They are suitable for pumping clean or slightly polluted, hot or cold, chemically neutral or aggressive liquids.
Wherever a robust pump for highpressure applications is needed, theMBNfulfillsallrequirements.
Materials
50 Hz
Suction casing Stage casing
Discharge casingChromium steel, Duplex, Superduplex
Shaft seal housing Chromium steel, Duplex, Superduplex
Impellers Chromium steel, Duplex, Superduplex
Shaft Shaft sleeves Duplex, Superduplex
Bearing bracket Cast iron
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Design Features and Benefits
Hydraulics•SpecialsuctionimpellerforlowNetPositive
Suction Head Requirements (NPSHr)•Highqualityinvestmentcastimpellersandstagecasingsforbetterefficiency
Mechanical Design•Keylesspolygonshafttorquetransmissionto
the impellers•Splitringfixingforimpellerstacktoaccommo-
date thermal expansion•Innovativejournalbearingdesignforbetter
internal alignment and lubrication•Axiallyfixedshaftassembly
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Polygon Impeller Mounting•Allowsafastandeasy
mounting of the impeller on the shaft.
•Maintains straightness of the shaft
•Decreasesdeflectionandstress points
•Eliminates the need of standard keyed design
Bearing Unit•4bearingunitsserve6hydraulics•Samebearinghousingforbothoilandgreaselubrication•Increasedoilsumpforbetterheatdissipation•Inpro™metallicbearingisolators•Constantleveloilermaintainsoptimumoillevel•Greaselubricationfortemperaturesupto120°C(240°F)•Oillubricationfortemperaturesupto180°C(350°F)•Bearingunitcanbeservicedwithoutdisassemblingthepump
Shaft Sealing•Separatesealchamberenablesthesealtypetobechanged
without having to replace the suction casing•Mechanicalseal(singleanddouble),dynamicsealandgland
packing are available•Shaftsealingonlyrequiredonthelowpressuresuctionside•Shaftsealcanbeservicedwithoutdisassemblingthepump
Baseplate•Fabricatedsteel,paintedor
hot-dip galvanized•Tobegroutedatinstallationsite
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Differentsuctionanddischargeflangeorientations(left-up-right)allowindividualcustomerflexibilityduringinstallationandsimplifypipingdesign.
Flange Connection Options
1 2 3 4 5 6 7 8 9
Shaft Sealing Options
Single Mechanical SealThe standard mechanical seal is an integrated design for increased reliability.
Alargevarietyofothermechanicalsealswithdifferentfittingsgivestheflexibilitytochoosetherightsealaccording to the application and customer’sspecification.•MS11unflushed: upto90°C(194°F)
•MS12+Plan11: upto140°C(280°F)
•Plan23withpumpingring: upto180°C(350°F)
Dynamic SealDynamic seals do not need external sealing water or sealing water piping thus reducing instal-lation, operating and maintenance costs.•upto100°C(210°F)
Double Mechanical SealDouble seal minimizes the need for sealing liquid. New sealing control equipment for double mechanical sealscansavemorethan90%of the sealing liquid required by conventional equipment.•MS21+Plan54: upto180°C(350°F)
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1 10 100 1,000Capacity Q (m /h)3
100
10
1,000
Head H (m)
Capacity Q (USgpm)
330
304 40 440 4,440
3,200
Head H (ft )
Operating Data
Performance Ranges
50 Hz
60 Hz
50 Hz 60 Hz
Pump sizes from 25 mm to 150 mm from 1 to 6 inches
Capacities up to 700 m3/h up to 3,080 USgpm
Heads up to 900 m up 2,950 feet
Pressures up to 100 bar up to 1,450 psi
Temperatures up to 180 °C up to 350 °F
E00657 en (6) 10.2012 (1,000), Copyright © Sulzer PumpsThis brochure is a general presentation. It does not provide any warranty or guarantee of any kind. Please, contact us for a description of the warranties and guarantees offered with our products. Directions for use and safety will be given separately. All information herein is subject to change without notice.
www.sulzer.com