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Safety
10 EN
09|2018
2.9 Preventing
material
damage
2.9.1 Leakage and pipe breakage
If the pipe forces are exceeded, leaks can occur at the screwed
connection or the pump itself.
Do not use the pump as a fixed point for the pipe line.
Connect pipes free of load and mount them elastically. Install
compensators if necessary.
If the pump leaks, the unit may not be operated and must be
disconnected from the mains power supply.
2.9.2 Dry
running
Various components can be damaged within seconds due to dry
running.
Do not allow the pump to run dry.
Purge air from pump prior to start-up.
2.9.3 Cavitation
Pipes which are too long increase resistance. This results in risk
of cavitation.
Ensure that the suction line does not leak.
Observe the maximum pipe length.
Open the valve on the suction side completely.
2.9.4 Overheating
The following factors can lead to the pump overheating:
•
Insufficient cooling of the pump.
•
Closed valve in the pressure line.
Do not let the pump run dry.
Do not operate the pump with closed valves.
2.9.5 Pressure
surges
Valves which close suddenly can cause pressure surges which far
exceed the maximum permissible housing pressure of the pump.
Avoid valves which close suddenly or, if present, close them
slowly.
2.9.6 Blockages
in
the
pump
Dirt particles can clog and block the pump.
Check how easily the pump rotates before starting it up and
after longer idle or storage periods.
Содержание 2 VGX 12/15
Страница 1: ...DE Originalbetriebsanleitung EN Translation of original operation manual VGX 2VGX MTX WG64 022 008 P ...
Страница 2: ...Inhaltsverzeichnis DE Originalbetriebsanleitung EN Translation of original operation manual ...
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