Centrifugal Pumps.ppt

CENTRIFUGAL PUMPS

CENTRIFUGALPOSITIVE DISPLACEMENT Pumps Classification

Pumps

SOME TYPES OF CENTRIFUGAL PUMPS

SPLIT TYPE PUMPS

BARREL TYPE PUMPS

OPPOSITE IMPELLERSMULTI STAGE

CENTRIFUGAL PUMPS CURVE LOSSES

Centrifugal pumpsin series

Centrifugal pumps in seriesHT = HA + HB

CENTRIFUGAL PUMPS IN PARALLEL

ISO- EFFICIENCY CURVESN1N3N2.70N1N2N3Pump ( RPM ) N1 >N2 >N3

EFFICIENCY AS A FUNCTION OF SPECIFIC SPEED AND PUMP FLOW RATENS

IF THE PUMP SPEED CHANGES

N1 = 2000 RPM TO N2 = 3000 RPM

Q1 = 200 GPM Q2 = GPM P1 = 400 p s i P2 = p s i HP1 = 40 HP2 =

Mechanical seal and bearings arrangement