Special Versions; Mwn Pump; Operating Instructions; Water Temperature - Pratissoli MW Serie Manual De Uso

17

SPECIAL VERSIONS

The MW pump is also available in the following special
versions:
• MWN
• MWR
• MWNR
• MWF
• MWM
The following information is helpful in deciding how to
choose and use these versions.
Unless specified otherwise, observe the above instructions for
the standard MW pump.
17.1

MWN pump

17.1.1

Operating instructions

The MWN pump is ideal for pumping salt water and
particularly aggressive fluids.
It has been designed to operate in environments
with atmospheres that are not potentially explosive,
and with filtered water (see par. 9.7).
Other liquids can be used only upon formal approval
by the Technical or Customer Service Departments.
17.1.5

Technical characteristics

Model
MWN 32
MWN 36
MWN 40
MWN 45
MWN 50
MWN 55
Flow rate
Rpm
l/min
800 135
1500 135
1800 136
2200 136.5
800 171
1500 171
1800 172
2200 173
800 211
1500 211
1800 212
2200 213
800 267
1500 267
1800 269
2200 270
800 330
1500 330
1800 332
2200 333
800 399
1500 399
1800 401
2200 403
60
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 catalogue are the
maximum that can be obtained by the pump. Independently
of the power used, the maximum pressure and rpm indicated
in the specification label can never be exceeded unless upon
prior formal authorisation by our Technical or Customer
Service Departments.
17.1.4

Minimum rotating speed

Any rotating speed other than that indicated in the
performance table (see par. 17.1.5) must be expressly
authorised by our Technical or Customer Service
Departments.
Pressure
Gpm bar psi
35.7 300 4350
35.7 300 4350
35.9 300 4350
36.1 300 4350
45.2 240 3480
45.2 240 3480
45.4 240 3480
45.7 240 3480
55.7 210 3045
55.7 210 3045
56.0 210 3045
56.3 210 3045
70.6 155 2247.5
70.6 155 2247.5
71 155 2247.5
71.3 155 2247.5
87.2 125 1812.5
87.2 125 1812.5
87.6 125 1812.5
88 125 1812.5
105.4 100 1450
105.4 100 1450
106 100 1450
106.5 100 1450
Power
kW HP
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100
84.6 115
84.6 115
85.3 116
85.3 116
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100
73.5 100