Annovi Reverberi AR 115/1000 bp Manual - Halaman 6
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Halaman Cetak
General guidelines on water supply connection
To operate correctly, the diaphragm pump must draw in liquids from containers at atmospheric pressure.
Do not supply the pump with pressurised liquids.
For continuous duty, the pump should not draw in water by gravity from containers with liquid level at heights
above 3 m.
POSITIVE HEAD
ZERO HEAD
Pump is operating
at acceptable inlet
vacuum
NEGATIVE HEAD
UN003415-EW
For continuous duty, the pump should not draw in liquids by vacuum from containers with the liquid level
more than 3 m below the pump intake fitting and the circuit must consist of hoses of length and diameter ap-
propriate to the pump intake fitting (see "Technical Data"), free from restrictions and elbows, and with a filter
of suitable capacity (see "Installation").
For occasional duty, such as filling water supply tanks, the pump can be operated at a vacuum drawing in liq-
uids from reservoirs having the surface of the liquid up to 5 m below the pump intake fitting, for periods of no
more than 15 minutes.
Drawing in liquids from lower levels or for longer times causes cavitation in the pump circuit and re-
duces the lifetime of the diaphragms, valves and mechanical parts.
English language
INSTALLATION INSTRUCTIONS
PUMP
VACUOMETER
5
ZERO HEAD
WARNING!
MAXIMUM OPERATING
TIME 15 MINUTES
Pump is
operating at
high inlet
vacuum
NEGATIVE HEAD
Use and Installation