General Pump HF Owner Manual - Manual (Page 6)

GENERAL PUMP
A member of the Interpump Group
HF SERIES
Page 6
7. GENERAL INFORMATION ABOUT PUMP
USE
The HF pump has been designed to pump fresh filtered
(360 micron max) water at room temperature (400 C max).
7.1 Water temperature
Water temperature is critical for the pump life, the higher it
is, the more likely it is to create cavitation, resulting in
premature seal and valve failures.
For such conditions, use HT series
pumps.
7.2 Pump performances
The performance data indicated in the catalog and on the
rating plate refer to the maximum performance of the
pump. The use of the pump below the rated performances
does not allow the drop in power absorbed to be balanced
by altering the pressure or volume of the pump above its
maximum value unless especially authorized by our
technical department.
7.3 Lowest operating RPM
The lowest operating speed for all HF’s (all versions)
is 500 RPM (on crankshaft).
8. CONNECTIONS AND PLUGS
HF pumps are provided with (Fig. 3):
1 - 2 inlet ports IN Ø 1” NPT
Either inlet port can be used; the one not used must
be hermetically plugged.
2 - 2 outlet ports OUT Ø 3/4” NPT