Flowserve PVML - Manual (Page 15)

PVML USER INSTRUCTIONS ENGLISH 00079591 – 01/05
®
4.7.6 If not supplied pre-wired to the pump unit, the
controller/starter electrical details will also be supplied
within the controller/starter.
4.7.7 For electrical details on pump sets with
controllers see the separate wiring diagram.
4.7.8 See section 5.3, Direction of
rotation before connecting the motor to the electrical
supply.
4.7.9
This pump unit has an earthing boss for
discharging (static) electricity. Connect the earthing
boss of the pump unit in accordance with the
applicable instructions or commission an approved
electrical engineer to carry out the work.
4.8 Final shaft alignment check
Due to the vertical closed coupled design a final
alignment check is not applicable.
4.9 Protection systems
The following protection systems are
recommended particularly if the pump is installed in a
potentially explosive area or is handling a hazardous
liquid. If in doubt consult Flowserve.
If there is any possibility of the system allowing the
pump to run against a closed valve or below minimum
continuous safe flow a protection device should be
installed to ensure the temperature of the liquid does
not rise to an unsafe level.
If there are any circumstances in which the system
can allow the pump to run dry, or start up empty, a
power monitor should be fitted to stop the pump or
prevent it from being started. This is particularly
relevant if the pump is handling a flammable liquid.
If leakage of product from the pump or its associated
sealing system can cause a hazard it is recommended
that an appropriate leakage detection system is
installed.
To prevent excessive surface temperatures at
bearings it is recommended that temperature or
vibration monitoring are carried out. See sections
5.7.4 and 5.7.5.
5 COMMISSIONING, START-UP,
OPERATION AND SHUTDOWN
These operations must be carried
out by fully qualified personnel.
5.1 Pre-commissioning procedure
BEFORE START-UP REMOVE
TEMPORARY RUBBER GASKET ABOVE SEAL
DRIVE COLLAR.
GASKET CAN BE EASILY REMOVED BY USING
A KNIFE OR SCISSOR TO MAKE A RADIAL
INCISION.
Before using the pump, flush it with hot water to
remove any preservatives or contaminants. Drain
off the flushing water from underneath the pump.
5.2 Pump lubricants
As the pump is of the Vertical Closed Coupled
design the pump itself is not equipped with
grease or oil connections.
See the electric motor
instructions for the motor lubrication.
The bearings of the electric motor are either re-
greasable or greased for life.
5.3 Impeller clearance
No functional adjustments are to be considered.
5.4 Direction of rotation
Ensure the pump is given the same
rotation as the pump direction arrow mounted on
the pump casing.
To avoid dry running the pump must be filled with
liquid.
If maintenance work has been
carried out to the site's electricity supply, the
direction of rotation should be re-checked as above
in case the supply phasing has been altered.
5.5 Guarding
Guarding is supplied fitted to the pump set.
If this has been removed or disturbed ensure that all
the protective guards around the exposed parts of
the shaft are securely fixed.
5.6 Priming and auxiliary supplies
Ensure all electrical, hydraulic,
pneumatic, sealant and lubrication systems (as
applicable) are connected and operational.
Ensure the inlet pipe and pump
casing are completely full of liquid before starting
continuous duty operation.
Page 15 of 29