Pumping units with double-screw technology
Fristam expanded its range of hygienic centrifugal and positive displacement pumps by adding hygienic pumping units with double-screw technology. The pump casing of the FDS pump comes in three parts, consisting of an intermediate flange, the screw casing and the pump cover. Thanks to the central positioning of the gearwheels inside the bearing support area, the entire pump comes in a very compact design. Its massive shaft has reinforcements in the area of critical diameters to ensure maximum rigidity. Further stability is achieved through a combination of particular large bearings and an increased bearing distance.
The pump’s service life is also prolonged by an improved lubrication system for the bearings. Maintenance work on the gears is facilitated by direct access to the drive system without removal of the pump. Thanks to the absence of cavities, residue-free rinsing of the pump in a CIP process presents no problem. The pump can also be sterilised. The entire series comes in four sizes. The maximum discharge pressure is 25 bar, the maximum flow rate approx. 180 m3/h. Connections of up to DN 150 are available. The pump can be mounted either horizontally, vertically or sideways. Numerous additional options, such as high-pressure models or Atex-compliant versions, make it possible to adapt the pumps individually to a great variety of processes.
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