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Installation
8
The motor shaft and pump shaft connection
must be protected against contact!
9
Connection to the piping
C
A
U
T
I
O
N
C
A
U
T
I
O
N
C
A
U
T
I
O
N
C
A
U
T
I
O
N
C
A
U
T
I
O
N
C
A
U
T
I
O
N
C
A
U
T
I
O
N
C
A
U
T
I
O
N
C
A
U
T
I
O
N
C
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O
N
C
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O
N
C
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N
10 Possible connection positions
Counterclockwise rotation of the rotor and motor
Revision 4.4 / January 2019
DO NOT START WITHOUT PROTECTION 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.
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 Watson-Marlow MasoSine pumps normally run with such a low resonant frequency that no
corresponding damage is caused. However, particularly when running with converters, certain frequencies
can cause interfering vibrations which must be avoided. It is important during initial commissioning to
ascertain whether such vibrations exist and to define them accordingly, so that the frequency converter
can then be programmed to avoid these frequencies. Similarly, interference from cavitation or rigid lines
must be ruled out.
The operator has to ensure that the pump can work free of cavitation.
Cavitation destroys the pump
Unless otherwise ordered, the pump is delivered in position 10 - 2
C
A
U
T
I
O
N
C
A
U
T
I
O
N
Clockwise rotation of the rotor and motor
wrong
10
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Troubleshooting
