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5 COMMISSIONING
5.11
5.12 Liquid Supply: Always ensure that liquid storage capacity is adequate to meet
the demand. Ensure the pump chamber is full of liquid before starting the
pump. Failure to do this could result in seal damage. To ensure dry running
does not occur the pumps must be primed as described in priming section.
Do not run pump dry.
5.13 Priming:
a) Flooded suction installation
The pump must be primed (filled with liquid) before starting. Turn on
liquid supply, prime and vent the pump by unscrewing the priming plug
(Fig. 14) slowly until all air escapes and liquid emerges. Re-tighten plug.
b) Suction lift installation
A footvalve and strainer must be fitted to the end of the inlet pipework.
Prime the suction pipework by filling before connecting to the pump.
Prime the pump by filling via the priming plug (Fig. 13).
System Flushing: This pump-set incorporates plastic components
that must not come into contact with solder flux, acid-based
descalents or aggressive cleaning agents. The pipework system
should be flushed out prior to the pump being connected to
ensure any contaminants/chemical residues and foreign bodies
are removed from elsewhere in the system.
Never operate pump with inlet and/or outlet isolating valves in the
closed position. Damage will occur!
Fig. 13
Note: This image is for reference only
Outlet
Priming
Plug
Inlet
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Cont ...
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