Cavitation destroys the pump – Watson-Marlow MR 160 User Manual
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N:\Konstruktion\Betriebsanleitungen\AKTUELL\MR Serie\TDE MR160.doc
Revision 4
January 13
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Transport instructions
The choice of the means of transport is according to the size of the pump and of the drive. The pump must be suspended correctly for
transport. The crane/forklift truck and the ropes/belts must be sufficiently dimensioned. If the pump is transported with a lift truck or a
forklift truck, it must be noted that the console centre point is not automatically the centre of gravity.
wrong right
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Installation
The motor shaft and pump shaft
connection must be protected against
contact!
Place the pump on a level ground.
Do not start without the protection against contact!!
The foundation should be dimensioned sufficiently for the weight of the pump.
There should be sufficient space for maintenance work around the pump.
It must be guaranteed that the motor receives an adequate air supply.
If the pump is used in explosion endangered rooms, an Ex protected motor must be used.
The total unit must be protected against static charge.
.
Align the shaft of the pump with the shaft of the drive.
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Connection to the piping
Before connection clean the piping and remove foreign bodies.
(e.g. there can still be residues in the pipes due to welding work).
Fit elastic intermediate members (compensators) between pump and fixed piping on the suction
and pressure side. This should prevent vibrations of the pump being transmitted to the piping
system.
Forces and torques acting from the piping on the pump connections (e.g. due to distortion, expansion due
to temperatures etc.) must be avoided.
The pressure line should point upwards, so that later residual liquid can always flow back into the pump.
Thus total dry running is avoided. Further it facilitates the later suction process.
The operator has to ensure that an inadmissible pressure rise (above the pressure agreed in the order and
listed in the technical data) is not possible.
The operator has to ensure that the pump can work free of cavitation.
Cavitation destroys the pump
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wrong
DO NOT START WITHOUT
PROTECTION AGAINST CONTACT!!
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