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Fig 8
- Be sure product is available in the suction vessel before starting the pump.
This is very important for pumps fitted with un-flushed 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 the pump temperature and absorbed power where possible.
3.6 Shutdown Procedure.
When shutting the pump down, stop pump, 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, pneumatically operated integral relief valve has been
depressurised.
- Flushed product seal auxiliary services have been isolated and
depressurised.
- Pump head and piping have been drained and purged.
- Before undertaking any work on the pump refer to sections 4, 5, and 6.
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