HCH & atlas copco

1. Authorized Distributor from
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HowToSelectTheReliable
SubmersiblePumps
ZahraaElMaadi,IndustrialZone,Plot70,Maadi11728,Cairo,Egypt corporate@hch-supply.com +202 27324345/46/47

2. ZahraaElMaadi,IndustrialZone,Plot70,Maadi11728,Cairo,Egypt corporate@hch-supply.com +202 27324345/46/47
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Whatfluidneedspumping?
1
The first consideration is the nature of the liquid being
pumped as this has a major impact on the type of pump.
Important factors to consider include general composition,
theconcentration andsizeofsuspendedparticlesaswellas
the liquid’s PH level, temperature, and chemical content.
Forexample,isitwaterwithfineparticlesoramuchthicker
fluid,andhowaggressiveamediaisit?

3. ZahraaElMaadi,IndustrialZone,Plot70,Maadi11728,Cairo,Egypt corporate@hch-supply.com +202 27324345/46/47
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Whatarethecapacityrequirements?
2
Oneofthemost importantperformanceconsiderationsisthe
flowrequirement,i.e.how much liquid needs to be moved
and how quickly?
Forexample,apumpwithamaximumflowrateof138m3/h
(608USgpm)(suchasAtlasCopco’sWEDAD50)willremove
waterfromapoolthatis36m3in15minutes(158USgpmin15
minutes).
However,apumpwithaflowrateof350m3/h(1,541USgpm)
(suchastheWEDAD80)wouldemptythepoolinjust6
minutes.

4. ZahraaElMaadi,IndustrialZone,Plot70,Maadi11728,Cairo,Egypt corporate@hch-supply.com +202 27324345/46/47
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Whatisthedistanceandtheelevation
thatthefluidneedstobepumped?
3
Overwhatheightdoesthefluidneedtobepumpedandhowfardoes
itneedtotravel?
Thiswillhaveanimpactonthepressurethatthepumpneedsto
delivertoensureitcanpumpefficientlyandreliably.
Thegreaterthedistancethewaterneedstobepumped,themore
frictioniscreated,whichresultsinpressurelossfromthepump.
Pumpsneedtoovercomegravityresistanceaswellasfriction
losses.Whenspecifying,checkthemanufacturer’spublishedpump
curve,whichshowsheadheightagainstflowrate,toensureit
coverstherequireddutypoint.

5. ZahraaElMaadi,IndustrialZone,Plot70,Maadi11728,Cairo,Egypt corporate@hch-supply.com +202 27324345/46/47
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Whatisyourenergysource?
4
Ifmainselectricityisavailable,anelectricpumpwillbethe
bestandmostefficientchoiceinmostcases.
Electricsubmersiblepumps–suchasAtlasCopco’sWEDA
pumps–arethesimplest,mostenergy-efficientandmost
economicalapproach,providinghighpowerinlightand
compactpackages.
Ifthesiteisremoteandpronetoafluctuatingmainssupply,
considerapumpthathasthemotorandstarterequippedwith
inbuiltelectricalprotectionagainstvaryingvoltage,phase
failureandhumanerror.