Flowserve MF User Manual

Page 22

Advertising
background image

MF USER INSTRUCTIONS ENGLISH 71569191 12/04

Page 22 of 50

®

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.

Advertising
This manual is related to the following products: