Flowserve MP1 Sier-Bath - Manual (Page 20)

MP1 USER INSTRUCTIONS ENGLISH 26999958 – 10-12
Page 20 of 48 flowserve.com
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
5.3 Direction of rotation before connecting the motor to
the electrical supply.
4.11 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 5.9.3
Bearings and 5.9.4 Normal vibration levels, alarm and
trip.
The user should review the need for special operating
procedures and protective devices peculiar to the
particular installation involved. These may include
special start-up and shut-down procedures, over-
speed protection, temperature, flow and pressure
interlocks, protection against automatic start-up in the
event of power failure, surge protection, protection
from freezing, lack of prime protection, temporary
strainers in the suction line, vacuum breakers, etc.
Great care should be exercised during the erection of
piping to keep lines clean and free of dirt, scale,
threading or welding chips, etc. Such foreign matter
entering the pump may cause scoring of the body
bores and unnecessary breakdown and costly repairs.
For pumps having jacketed bodies, the jacket inlet
piping should always be made at the lowest inlet point
with the outlet at the top or highest point and the
opposite configuration when using a gaseous heat
transfer media. Provide a valve on the inlet piping so
that flow may be regulated to control temperature.
5 COMMISSIONING, START-UP,
OPERATION AND SHUTDOWN
These operations must be carried
out by fully qualified personnel.
5.1 Pre-commissioning procedure
5.1.1 Check-list
To avoid operational difficulties and to ensure a trouble
free initial start-up, the following additional checks
should be made.
1. Check that all piping has been properly bolted,
anchored and braced. If the system is
hydrostatically tested, ensure that the pump and
other
equipment is properly vented and
adequately protected against excessive pressure.
(See Sections
4.11 Protection systems and 5.9.1
Venting the pump.)
2. Flush the piping system, particularly the suction
line, to ensure that all foreign material has been
removed.
3. Check that all valves and automatic equipment are
operating properly.
4. Ensure that drivers are provided with properly set
over-load and/or over speed protection devices as
required.
5. Check all auxiliary piping circuits.
5.1.2 Freezing
Precautions should be taken to prevent the liquid in the
pump or associated piping from freezing.
5.1.3 Lubrication
In general, bearing lubrication is provided by
lubricating oil contained in housings located at both
ends of the pump.
F ill the bearing housings with the
correct grade of oil to the correct level, i.e. sight glass