APV W+10/8 - 8 Technical Data; Sound Pressure and Sound Effect Level

GB
Form no.: L453147GB– revision 06/2013
8. Technical data
8.1 Sound pressure and sound effect level
MeasurementshavebeencarriedoutinaccordancewithISO3743,
Grade2andISO3746,Grade3.Tolerance:±3dB.
LpAindBreferstothesoundpressurelevelatadistanceofone
metrefromthesurfaceofthepumpataheightof1.6maboveoor
level(cf.ECDirective(89/392/EEC).
LwAindicatesthesoundpowerlevel.
OperatingconditionsA,BandCaredenedasfollows:
a) Nominalowandmax.permissibleoperatingpressure
b) Nominalowand60%operatingpressure
c) 60%owandmax.permissibleoperatingpressure
Thenominalowandmax.permissibleoperatingpressureinthe
caseoftheW+55/60,forexample,are60m³/hratanoperating
pressureof5.5bar,andsoon.
ThisinformationonlyappliesifthemotorusedisanABBaluminium
motorandthesizeofthemotormatchesthepowerrequirementof
the pump.
Thenoiselevelmayincreaseconsiderablyifreducers(reduction/
expansionttings)aremountedontheinlet/outlet.
Thevaluesshownapplywhenthepumpsoperateat2900rpmand
thereisashroudoverthemotor.Ifthepumpsoperateat1450rpm,
thevaluesarereducedbyapprox.20dB.Thevaluesforthe
W+25/210 apply at 1450 rpm.
Operating
conditions
LpA LwA
A B C A B C
W+10/8 65 62 60 79 77 74
W+22/20 67 65 61 81 79 75
W+30/80 75 73 68 89 87 82
W+25/210 69 68 64 83 82 78
W+35/35 69 67 64 83 81 78
W+35/55 72 70 67 86 84 81
W+30/120 76 74 72 90 88 86
W+50/8 69 68 64 83 82 78
W+50/600 75 75 73 89 89 87
W+55/35 69 68 68 83 82 82
W+55/60 74 70 68 88 84 82
W+60/110 76 74 72 87 85 84
W+65/350 86 88 82 100 102 98
W+70/40 75 69 69 89 83 83
W+80/80 75 73 72 89 87 86
W+110/130 79 76 76 93 90 90
Please note that the sound emitted by a pump may vary
considerably.Itdependsonthepumpdesign(size/speed/shroud/
installation)aswellasontheliquidtypeandpumpingconditions.
15
APV