Flowserve FP - Manual (Page 18)

FP USER INSTRUCTIONS ENGLISH 71576286 - 02/13
Page 18 of 40
Avoid mechanical, hydraulic or electrical
overload by using motor overload trips or a power
monitor and make routine vibration monitoring.
It is important to be aware of the EUROPEAN
DIRECTIVE on electromagnetic compatibility when
wiring up and installing equipment on site. Attention
must be paid to ensure that the techniques used during
wiring/installation do not increase electromagnetic
emissions or decrease the electromagnetic immunity of
the equipment, wiring or 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 shall be
fitted.
Carry out the ground connections according to the
current local regulations.
To avoid any risk of jamming, the direction of
rotation will be checked after priming of the pump (§
5.3.1, 5.3.2) and before the first start (§ 5.4.2).
4.7 Final shaft alignment check
a) Check the alignment pump-motor according to
the procedure § 4.4.2. Rectify if necessary by
adjusting the motor only.
b) Check by hand that the pump turns freely. A
binding indicates a distortion of the pump, which
is due to excessive pipes strains. If necessary
the pipework design must be re-examined.
c) If it provided, connect auxiliary pipe systems
(hydraulic, pneumatic, sealing system).
d) Control tightness and functionality of auxiliary
piping.
4.8 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
5.5.4 and 5.5.5.
If a defect of cooling can lead to temperature higher
than those acceptable a system of cooling
surveillance must be installed.
Except when explicitly required by the customer in
the specifications, when a possibility of reverse
rotation exists the customer must install a reverse
rotation protection device.
The customer must install all equipment required to
avoid water hammer.
5 COMMISSIONING, START-UP,
OPERATION AND SHUTDOWN
These operations must be carried out by
fully qualified personnel.
5.1 Direction of rotation
Starting or operating pumps with the
wrong direction of rotation can be harmful to the
pumps. Ensure that the pump rotation is the same
as the arrow on the pump casing. It is preferable to
check the direction of rotation before installing the
coupling. If not, the pump must be filled in with the
liquid before start-up.
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.
5.2 Guarding
Guarding is supplied fitted to the pump set.
If this has been removed or disturbed ensure
that all the protective guards around the pump
coupling and exposed parts of the shaft are securely
fixed.