Doc. ISM0076_MANUALE_CN SEAL-MV_ENG_REV04.DOCX
Pag. 27/49
18.3.
Emission / dispersion of harmful substances
The fluid in the plant might be released in the atmosphere following an intervention or the pump break.
19.
MALFUNCTIONING, FAILURE, BREAKDOWN, ACCIDENT. MOST FREQUENT PROBLEMS:
CAUSES AND REMEDIES
There aren’t pump details which provide such cases of malfunctioning as to restrict or make its use
dangerous.
In paragraph “Most frequent drawbacks: causes and remedy” is discussed with more details in this
section.
19.1.
Malfunctioning and Failure
In case of failure of mechanical parts you must immediately restore the original terms of security by
replacing or repairing the parts that have deficiencies.
In case of failure of the pump, proceed as follows:
-
Turn the motor off;
-
Close the inlet and outlet valves;
-
Find the cause of the failure by checking the section “ Most frequent drawbacks: problems,
causes, remedies, residual risks".
The failure of a pumping plant can be attributed to:
-
A pump failure;
-
A failure or defect in the pipe;
-
A failure due to an installation or a start not correctly executed;
-
A a wrong choice of pump.
19.2.
Breakdown
In the event of failure of pump alert verbally the staff present in the nearness of the damage that is
verifying.
19.3.
Accident
In case of accident, you must report the emergency to the plant responsible for the installation, in order
to secure the plant to reach with the emergency team the place where the accident happened.
19.4.
Most frequent drawbacks: problems, causes, remedies, residual risks
INSUFFICIENT FLOWS
Causes
Remedies / actions to be taken
The head requested exceeds the pump
head expected.
Reduce the total head of the system if possible.
Increase the diameter of the discharge pipe.
Check that the discharge valve is fully open.
Replace the pump.
Consult
M PUMPS PROCESS
.
