Alfa Laval ALS - Page 13

3Installation
Studytheinstructionscarefullyandpayspecialattentiontothewarnings!
AlwayschecktheAgitatorbeforeoperation-seechapter3.3Pre-usecheck.
TheAgitatorisforpermanentfastening.
Makesurethatthemotorcorrespondtotheenvironment.
Step Step
Step
2 2
2
Ensurethatthetank,wheretheweldingflangearetobeweldedin,
canhandletheforcesappliedbytheAgitator:TorqueMv,Bending
torqueMbandSidethrustFs.
ThevaluesaredependingontheAgitatorconfiguration.The
followinginformationisrequiredtocalculatetheforces:
P:Powerofthemotorin[kW]
n:SpeedofAgitatorshaft[RPM]
S:ShaftlengthaccordingtoAgitatortypedesignation-Sxxxx-
in[mm]
D:LargestimpellerdiameteraccordingtoAgitatordesignation
-Pxxx-in[mm]
Thevaluescanbecalculatedasfollows:
TypeALS/ALB:
Mv[Nm]=23873xP/n
Fs[N]=4.5xMvx1000/D
Mb[Nm]=FsxS/1000
Step Step
Step
3 3
3
Duringthedesignphaseofthetank,ensuresufficientlyrigidity
ofthetank.
Ensurethatthemax.bendingangle(A),atloadsfromStep2does
notexceedaccordingtobelowscheme
RPM: RPM:
RPM:
<100 <100
<100
>100 >100
>100
A°(maxbendingangleatappliedloads):
0.10.05
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