Grundfos BMQE 15 - Page 13

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Product Guide Page No.
Generaldata 13
Productrange 14
Materialsofconstruction 15
Typekey 15
15BMQEperformancecurves 16
22BMQEperformancecurves 17
30BMQEperformancecurves 18
Dimensions,weightsandelectricaldata 19
Dimensionalsketch 19
Technicaldata-BMQEpump 20
Technicaldata-EZBoostcontroller 21
Accessories 22
EZBoostQuickGuide 23
EZBoostSystemDiagram 23
EZBoostPre-Installation 24
ParallelOperation 25
Contents EZ Boost
TM
System
12
EZ BOOST SYSTEM
Introduction
Therearemanyapplicationswithinwatersupplywhereit
isnecessarytoincreasethesystempressure.TheGrundfos
EZBoostsystemistheoptimumsolutionforapplications
requiring:
•Seallesspumps
•Quietoperationand/or
•Maintenance-freeoperation.
TheEZBoostsystemoffersthefollowingfeatures:
•Dry-runningprotection
•Highefficiencyofpumpandmotor
•Excellentwearresistance
•Softstarter
•Overvoltageandundervoltageprotection
•Overloadprotection
•Overtemperatureprotection.
•Variablespeed
•Electroniccontrolandcommunication.
Applications
•Pressureboosting.
•Watertreatment.
Pumped liquids
Thin, non-explosive liquids not containing abrasive par-
ticlesor fibers. The liquidmust not be ableto attack the
pumpmaterialschemicallyormechanically.
Shouldthedensityand/orviscosity of thepumpedliquid
exceedthe density and/or viscosityof water, please con-
tactGrundfos.
BMQE Pump
The pumps used for The Grundfos EZ Boost system are
modified SQE submersible pumps. The EZ Boost BMQE
pump is an SQE pump with an MSE 3 motor. Pump and
motorarecenteredinthe4”stainlesssteelsleeve.
BMQEpumpsaresuitableforbothcontinuousandinter-
mittentoperationforavarietyofpressureboostingappli-
cations.
BMQE Motor
TheMSE3motorsarebasedonstate-of-the-arttechnology
within permanent magnets (PM motor), which accounts
for the high motor efficiencies. In addition, the motors
haveabuilt-inelectronicunitwithafrequencyconverter
forvariablefrequencyandsoftstarting.
Product Guide EZ Boost
TM
System
TheMSE 3 motors features high efficiency within awide
load range. The high and flat efficiency curve of the PM
motor enables the same motor to cover a wide power
range as opposed to conventional AC motors. For BMQE
pumps,thismeansfewermotorvariants.
EZ Boost Controller
TheBMQEpumpfeaturesvariablespeedwhichisoffered
throughfrequencycontrolviatheEZBoostcontroller.Asa
consequence,thepumpcanbesettooperateinanyduty
pointintherangebetweentheminimumandmaximum
performancecurvesofthepump.EachBMQEpumpmust
beconnectedtoitsownEZBoostcontroller.
ItisalsopossibletooperatetheBMQEwithoutanEZBoost
controller,thoughthefeaturesofferedwillbefewer.
Operating conditions
Flow: Max.39USGPM(8.9m3/h)
Head: Max.300ft(91.4m)
Temperature: Max.95°F(35°C)
Operatingpressure: Max.347PSI(23bar)
Inletpressure: Min.8PSI(0.55bar)
Sound-pressurelevel: Thesoundpressurelevelofthe
BMQE is lower than 74 db[A] at a distance of 3 feet (1
meter).
It is recommended by Grundfos that the pump be installed
with sound and vibration dampening equipment such as
flexible piping adapters and anti-vibration mounting. The
pump should not be mounted in or adjacent to living quar-
ters. The pump can also be wrapped with sound- proofing
insulation to reduce noise (see page 16, EZ Boost System
Diagram).
BMQE Pump Sectional Drawing
Pos.
1. Sleeve 5. SQEpump
2. Dischargeconnection 6. Cableentry
3. Suctionconnection 7. Centeringdevice
4. MSE3motor 8. Airventscrew
6
2
5
4
7
3
1
8
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