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