Special Versions; Lkn Pump; Operating Instructions; Water Temperature - Pratissoli LK Serie Manual De Uso Y Mantenimiento

17

SPECIAL VERSIONS

The LK pump is also available in the following special version:
• LKN
The following information is helpful in deciding how to
choose and use this version.
Unless specified otherwise, observe the above instructions for
the standard LK pump.
17.1

LKN pump

17.1.1

Operating instructions

The LKN pump, when not ordered with the ATEX
configuration, has been designed to operate in
environments with atmospheres that are not
potentially explosive and it is ideal for pumping salt
water and particularly aggressive fluids.
It has been designed to operate with filtered water
(see par. 9.6).
Other liquids can be used only upon formal approval
by the Technical or Customer Service Department.
17.1.5

Technical characteristics

Model
LKN 36
LKN 40
LKN 45
LKN 50
LKN 55
LKN 60
Flow rate
Rpm
l/min
1500 140
1750 152
1900 154
1500 173
1750 188
1900 190
1500 218
1750 238
1900 241
1500 269
1750 294
1900 297
1500 326
1750 355
1900 360
1500 388
1750 423
1900 428
41
17.1.2

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.
17.1.3

Maximum pressure and flow rate

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.
17.1.4

Minimum operating speed

The minimum permissible speed of the crankshaft for these
types of pumps is 300 rpm; any rpm other than as shown in
the performance table (see para. 17.1.5) must be expressly
formally authorized by our Technical or Customer Service
Departments.
Pressure
Gpm bar psi
37.0 400 5800
40.2 400 5800
40.7 400 5800
45.7 350 5075
49.7 350 5075
50.2 350 5075
57.6 280 4060
62.9 280 4060
63.7 280 4060
71.1 230 3335
77.7 230 3335
78.5 230 3335
86.1 190 2755
93.8 190 2755
95.1 190 2755
102.5 160 2320
111.8 160 2320
113.1 160 2320
Power
kW HP
107 145
116 158
118 161
115 157
126 171
127 173
117 159
127 173
129 176
118 161
129 176
130 177
118 161
129 176
131 178
118 161
129 176
131 178