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18
SPECIAL VERSIONS
The KF pump is also available in the special version:
•
KFR
The following information is helpful in deciding how to
choose and use this version.
Unless specified otherwise, observe the above instructions for
the standard KF pump.
18.1
KFR pump
18.1.1
Operating instructions
The KFR series pump has been designed to operate
in environments with atmospheres that are not
potentially explosive and for using water rich in
particulate, therefore it is considered ideal for
systems with fluid recirculation.
The durability of the piston seals is directly in
relation to the percentage of the presence of solids
in the fluid as regards both their size and their
density.
For a long seal life we recommend a particulate
grain size of no more than 200 micron and 20% max.
in volume.
For more information and a general system layout,
see par. 9.7.
18.1.5
Technical characteristics
Model
Rpm
KFR 28
1000
KFR 30
1000
KFR 32
1000
800
KFR 36
900
1000
KFR 40
900
18.1.6
Dimensions and weight
For KFR version pump dimensions and weight, refer to Fig. 16.
Dry weight 68 kg.
18.1.2
18.1.3
The rated specifications stated in our catalog are the
maximum that can be obtained by the pump. Independently
of the power used, the maximum pressure and rpm indicated
on the specification label can never be exceeded unless prior
formal authorization is given by our Technical or Customer
Service Departments.
18.1.4
The minimum permissible speed of the crankshaft for these
types of pumps is 100 rpm; any rpm other than as shown in
the performance table (see par. 18.1.5) must be expressly
formally authorized by our Technical or Customer Service
Departments.
Flow rate
l/min
Gpm
93
24.5
106
28
120
31.7
122
32.2
137
36.2
153
40
170
45
17
Water temperature
The maximum permissible water temperature
is 40 °C. However, the pump can be used with
water up to a temperature of 60 °C, but only for
short periods. In this case, it is best to consult the
Technical or Customer Service Departments.
Maximum pressure and flow rate
Minimum operating speed
Pressure
bar
psi
210
3045
200
2900
180
2610
41.2
160
2300
140
2050
130
1900
38.2
110
1595
Power
kW
HP
37
50
40
55
56
37
50
37
50
52
36
49
Fig. 16
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