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