
17/45
NT 1008-D00 08 18 P BI series e
3. USE
3.1 Pumping hot liquids
When pumping hot liquids, make your you retighten
screws and bolts after starting for the first time in order
to compensate for contraction.
3.2 Pump full of liquid when stopped
If the pump circuit is to be located between valves and/or
a non-return valve, you need to take account of the
variations in temperature that can lead to contraction of
the liquid in the circuit. In this case, you need to provide
some means of compensating for the contraction. A
discharge valve may be sufficient. The opening pressure
for this valve should be compatible with the permitted
pressure for the other components in the circuit.
It is also advisable to fit a discharge device to allow the
circuit to be completely emptied for any maintenance work.
In the case of liquids containing particles settling on
shut-down, it is necessary to make sure the consistency
of the deposit will not impede restarting the pump.
3.3 Noise level
The sound level of a pump is greatly influenced by its
conditions of use. Cavitation and pumping products with
high gas contents generally increases the sound level.
Under the following pumping conditions :
• excluding cavitation
• maximum differential pressure : 12 bar
• speed of rotation 1000 rpm
• product viscosity of 1 cSt
The sound level reached for the MOUVEX P BI series
pump in good conditions without the drive is less than :
• P15 - P25 . . . 74 dB(A)
• P40 - P60 . . . 76 dB(A)
• P100. . . . . . . 78 dB(A)
3.4 Starting-up the pump
Before starting the pump, make sure that the following
conditions are met :
• The circuit should be in one of its pumping configu-
rations, with the appropriate valves open, especially
on the intake side.
• For products requiring heating, they must be brought
to their pumping temperature before starting the
pump.
3.5 Running without liquid in the pump
MOUVEX TVP (PEEK) vane pumps P Series can run
without liquid in the pump for 5 minutes without causing
damage, in particular during pump priming.
CAUTION
THE SURFACES CAN BE AT A TEMPERA-
TURE LIABLE TO CAUSE INJURY OR
SEVERE DAMAGE.
Excessive temperature
can cause injury or
severe damage.
WARNING
FAILURE TO INSTALL ADEQUATELY SIZED
PRESSURE RELIEF VALVE(S) CAN CAUSE
PROPERTY DAMAGE, PERSONAL INJURY
OR DEATH.
Hazardous pressure
can cause
personal injury
or property damage.
WARNING
IF PUMPING HAZARDOUS OR TOXIC
FLUIDS, THE SYSTEM MUST BE FLU-
SHED PRIOR TO PERFORMING ANY
SERVICE OPERATION.
Toxic or hazardous
fluids can cause
serious injury.
WARNING
IF OPERATED WITHOUT THE SHAFT
GUARD, THERE IS CONSIDERABLE RISK
OF SEVERE PERSONAL INJURY, SIGNIFI-
CANT PROPERTY DAMAGE OR EVEN
DEATH.
Do not operate
without guard
in place.
WARNING
FAILURE TO RELIEVE THE SYSTEM
PRESSURE PRIOR TO PERFORMING
ANY WORK ON THE PUMP OR THE
INSTALLATION CAN CAUSE PERSONAL
INJURY OR PROPERTY DAMAGE.
Hazardous pressure
can cause
personal injury
or property damage.