Flowserve MF - Manual (Page 22)

MF USER INSTRUCTIONS ENGLISH 71569191 12/04
Page 22 of 50
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any connected devices. If in any doubt contact
Flowserve for advice.
The motor must be wired up in
accordance with the motor manufacturer's
instructions (normally supplied within the terminal
box) including any temperature, earth leakage,
current and other protective devices as appropriate.
The identification nameplate should be checked to
ensure the power supply is appropriate.
A device to provide emergency stopping must
be fitted. If not supplied pre-wired to the pump unit,
the controller/starter electrical details will also be
supplied within the controller/starter. For electrical
details on pump sets with controllers see the
separate wiring diagram.
See section 5.4, Direction of rotation
before connecting the motor to the electrical supply.
4.8 Final shaft alignment check
After connecting piping to the pump, rotate the shaft
several times by hand to ensure there is no binding
and all parts are free.
Recheck the coupling alignment, as
described in section 4.5, to ensure no pipe strain. If
pipe strain exists, correct piping.
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 is conducted on a regular basis.
5 COMMISSIONING, STARTUP,
OPERATION AND SHUTDOWN
These operations must be carried out
by fully qualified personnel.
To ensure safety, keep the power supply
turned off to the motor and pump accessories during
commissioning.
5.1 Pre-commissioning procedure
The gland is to be filled with grease and flush supply
to be in place. Flush piping to be checked for leaks.
Mechanical seals to be checked for leaks, flush flow
and pressure. In addition, follow the list below.
a) Pump bearings must be filled with the
recommended lubricant to avoid running dry and to
guarantee acceptable performance of the pump.
b) Check all vent connections for complete filling of
the pump.
c) Check the direction of rotation of the pump
(Coupling spacer dismantled).
d) The pump rotor and the shaft seal must be in
correct axial position.
e) Check the readiness of all auxiliary systems (seal
sys. lubrication sys.,) for start up.
f) All pipe work, including the internal and the
auxiliary pipe work, must be connected correctly
and must be absolutely tight. Check the tightness
of all connections of the auxiliary pipe work. The
suction valve must be open, the discharge valve
shall be closed or partially open as required.
g) Turn the pump by hand, if required with the help of
a lever, to check the free rotation of the rotor. The
rotor must turn uniformly and noiselessly. Some
resistance may be felt due to the friction in the
bearings and seals.
h) Check the readiness of the driver for start up.
Refer to driver User instructions before energizing the
motor.