Dover Almatec Biocor Series Instrucciones de uso e instalación - Página 4
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Recommended installation
Installation and operation
In general, the pump has to be connected load free. Neglecting this causes leakage and maybe even
damages. To avoid vibrations, pulsation dampers and compensators are recommended. Before connecting
the pump, take the yellow blind plugs out of the suction and discharge connections [4,6] as well as the air
inlet [23].
To facilitate the installation and maintenance shut off valves should be installed right before and after the
pump. The nominal width of the connection pipes has to be chosen in accordance to the connections of the
pump. A smaller piping can cause cavitation (suction line) as well as a loss of performance (suction and
discharge line). In case the pipe is too big, the dry suction capacity of the pump can decrease. Connect the
suction line to the lower manifold [4]. Hosepipes should be suitably armoured. A suction line continuously
rising will prevent the formation of air locks in the line which would affect the suction lift. The discharge line
has to be connected to the upper manifold [4].
The air inlet [23] is located in the middle of the center block [20]. Before installation, make sure that the air
supply pipe is free of solids. To supply the pump with driving air sufficiently, the pipe diameter should match
the size of the air inlet. Take care that no dirt or particles can intrude into the pump during the connection,
as these can accumulate inside the pump and can cause malfunctions. An air filter [22] directly behind the
air inlet [23] prevents the entry of bulk particles.
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The integrated air control system PERSWING P
[22] is a precision-control that requires oil-free, dry and
clean compressed air for optimal function. If humidity is expected, a water separator or air dryer has to be
fitted to protect the pump from blocking by ice. The ideal condition is the dewpoint of air at -20°C. In humid
surroundings, icing from the outside may occur despite the driving air is dried. If so, a prolonged waste-air-
exhaust (ca. 500 mm by pipe or hose) can be helpful. When installing the pump into boards or cabinets, it
has to be ensured that cold air does not get caught behind the muffler.
The pressure of the driving air has to be limited to the amount required to meet the performance needed.
Excessive pressure increases both the air consumption and the wear of the pump. The pump is regulated
by tuning the flow rate of the air. An empty pump has to be driven slowly (e.g. via a needle-valve). The
pump starts automatically. Pumps of the BIOCOR series are self-priming when dry, thus it is not necessary
to fill the suction line of the pump. The suction lift capacity of a liquid-filled pump, however, is much higher.
The pump is appropriate for running dry during slow operation. Dry running at high stroke frequency causes
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