The specifications given refer to the curves illustrated in our catalogues and Data Book (see www.ebaraeurope.com)
All of the performance curves are calculated according to ISO 9906 Attachment A.
Tolerance according to ISO 9906 Annex A.
The curves refer to an effective speed of the 50 Hz asynchronous motors.
The measurements are made with water temperature of 20°C and cinematic viscosity of = 1 mm2/s (1 cSt).
In order to prevent the risk of overheating, the pumps must not be used at a flow rate below 10% of the maximum efficiency flow rate.
During selection of the pumps, there is a safety margin of at least 1 m.