IN-LINE CENTRIFUGAL PUMPS

3E

PERFORMANCE CURVE SPECIFICATIONS

PERFORMANCE CURVE SPECIFICATIONS

The specifications below qualify the curves shown on the following pages.

50Hz

Rev.A

Tolerances according to ISO 9906:2012 - Grade 3B

The curves refer to effective speed of asynchronous motors at 50 Hz, 2 poles.

Measurements were carried out with clean water at 20°C of temperature and with a kinematic viscosity

of  = 1 mm

2

/s (1 cSt)

The NPSH curve is an average curve obtained in the same conditions of performance curves.

The continuous curves indicate the recommended working range. The dotted curve is only a guide.

In order to avoid the risk of over-heating, the pumps should not be used at a flow rate below 10% of best

efficiency point.

Symbols explanation:

Q =

H =

P

2

=

 =

NPSH =

MEI

=

volume flow rate

total head

pump power input (shaft power)

pump efficiency

net positive suction head required by the pump

minimum efficiency index

211

EBARA

CORPORATION

PM10U