17.1.6 Filtration
Our customer service department is at your disposal to define the system better, as examples, we provide the following
layouts. (fig. 12 and fig. 12/a).
With a manually activated control valve
f
ig. 12
GENERAL PUMP
A member of the Interpump Group
17.1.4 Dimensions and Weight
For dimensions and weight of pump, refer to the diagrams
in chapter 6.
17.1.5 Pump Supply
The pump must be installed with a positive suction head,
that receives the water by gravity or by forced feeding,
while never drawing water lower than pump.
The pump is able to withstand minimum suction heads of
even 1 meter. For best volumetric efficiency and to avoid
cavitation, the available positive suction head
(NPSH avail) measured at the suction flange in the mani-
fold must be equal to or greater that the values below
NPSH (m)
MK2R40/MK2SR40
17.76’ (4.5)
MK2R45/MK2SR45
18.04’ (5.5)
MK2R50/MK2SR50
21.33’ (6.5)
MK2R55/MK2SR55
24.61’ (7.5)
MK2R60/MK2SR60
26.25’ (8)
MK2R65/MK2SR65
29.53’ (9)
17.1.5 Pump Supply (continued)
For greater displacements, of pumps with plungers
Ø 55 - 60 - 65, forced feeding by a booster pump is
recommended in order to avoid cavitation, considering
the geometry of the hydraulics and the considerable flow
rates.
The booster pump must have at least twice the flow rate
of the rated flow rate of the plunger pump and a pressure
of 2 and 3 bars.
These supply conditions must be observed at all
operating speeds
The booster pump must always be started up
before the plunger pump.
It is recommend to install a pressure switch
on the supply line downstream of the filters
protecting the pump.
Page 24
Ref 310199 Rev. A
02-21
MK2R/MK2SR SERIES
