Datasheet

SUBMERSIBLE SUMP PUMPS OPTIMA
PERFORMANCE CURVE 50Hz
203
EBARA PUMPS EUROPE S.p.A.
Curve specifications
The specifications below qualify the curves shown on the following pages.
Tolerances according to ISO 9906 Annex A
The curves refer to effective speed of asynchronous motors at 50 Hz
Measurements were carried out with clean water at 20°C of temperature and with a kinematic viscosity
of ν = 1 mm
2
/s (1 cSt)
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 = volume flow rate
H = total head
Rev.E