Viking Pump TSM275: AL-05 - Manual (Page 14)

Page 14
3.3 Start Up Procedure.
Check that all piping and associated equipment are clean and free from debris and
that all pipe connections are secure and leak free.
For pumps installed with flushed product seals check that all auxiliary services are in
place and connected and provide sufficient flow and pressure for flushing purposes.
If an external relief valve is incorporated in the system check that it is set correctly.
For start up purposes it is considered good practice to set the relief valve lower than
the system design pressure. On completion of start up the relief valve should be
reset to the required setting for the application. The required setting should never
exceed the lower of either the pumps maximum pressure rating or the system design
pressure.
Ensure both suction and discharge valves are fully open, and pipework is free from
all obstructions. Acculobe pumps are of the positive displacement type and should
therefore never be operated against a closed valve as this would result in pressure
overload, resulting in damage to the pump and possibly the system.
Ensure product is available in the tank before starting pump. This is very important
for pumps installed with unflushed product seals, as these sealing arrangements
must never be allowed to run dry.
Before beginning operation it is considered good practice to momentarily start/stop
the pump to check the direction of rotation and ensure that the pump is free of
obstructions. Once this has been carried out, begin operation keeping a visual check
on suction and discharge pressure gauges and monitor pump temperature and
power absorbed where possible.
Note: For motor flange mounted Acculobe pumps the ‘driven’ rotor is on the right
hand side when looking from the front cover and the name plate is in the top position.
The driven rotor rotates in the same direction as the motor shaft.
3.4 Shutdown Procedure.
When shutting the pump down close both the suction and discharge valves and
ensure that the necessary safety precautions are taken:
The prime mover power source has been isolated.
If Installed, flushed product seal auxiliary services have been isolated and
depressurized.
Pump head and piping have been drained and purged.
WARNING
WARNING
WARNING
WARNING
WARNING