Dover Almatec Quattroflow-20k Series Gebruikershandleiding - Pagina 8
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Version of May, 2009
3. Description of the Quattroflow 20k pump
3.1 Application and range of utilization of the Quattroflow 20k pump
The Quattroflow 20k is a 4-piston Diaphragm pump, which is mainly used to pump water-like fluids that are
typically handled in research, pilot plant or production facilities of the pharmaceutical, biotech, food or
cosmetic research centres or plants.
Typical examples of these fluids:
Solutions containing proteins (albumin, IgG, Clotting factors, monoclonal antibodies,
enzymes, vaccines.)
Solutions of polymers or suspensions (silicones, latex, chromatography media)
Cell suspensions (bacteria, yeast, algae, fungi, mammalian cells)
colloidal solutions
Suspensions of viruses or phages
Dairy products
Gelatin
Supplements and ingredients for cosmetic and food.
3.2 Typical process steps in which the Quattroflow 20k pump is used
Filtration technology
To recirculate feed/retentate (i.e. membrane cassettes, hollow fibre, spiral wound, ceramic elements.
Feed pump for filter cartridges or plate and frame depth filters
Chromatography:
Packing of chromatography columns
Feed pump to mix gradients
Feed pump for centrifuges or separators
Feed pump for homogenizers
Feed pump for filling machines
3.3 Discription of the working princaple Quattroflow 20k
The Quattroflow 20k pump is a 4-piston diaphragm pump. The 4 segments of the pump diaphragm oscillate
back and forth. This alternate movement is created by a nutation disc that is arranged on a ball bearing.
The ball bearing sits on an eccentric shaft. The nutation disc does not turn!
The stroke of the pistons is determined by the angle of the 7° eccenter shaft.
Range of flow rate: appr. 750 -20.000 L/hr
The drive = motor + control needs to be choosen according to application.
Please note:
The direction of flow can be adjusted by turning the pump chamber in 90° steps.
The Quattroflow 20k is self-priming and can run dry. Inside the pump chamber there are no rotating parts
that might cause heating up of the product or shed particles.
The pump-motor unit is mounted on a stainless steel base plate. In case that the pump will not be mounted on
the base plate but in a frame or any other base measures have to be taken that there will be a proper
alignment of the motor and the pump.
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