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Falling Film Evaporate Finished

Estanc potato flour machine

In April 2015, the falling film evaporator to produce potato flour was finished in Estanc’s stainless steel factory.

The product was manufactured in two units: the bottom section weighing 20 tonnes and the tube bundle section weighing 60 tonnes. The tube bundle section is the heaviest one-piece unit ever prepared in Estanc’s stainless steel factory. It really gave our new cranes worth their while.

Main material used for falling film evaporator was acidsecure steel EN 1.4404 / ASTM 316L.

Tube bundle section diameter is 2.6m and it includes approximately 2500 tubes with tube ends welded and lightrolled to tubesheet. Tubesheets were bored with Estanc’s AS TOS-boringmachine.

The product length as whole is 27m, the bottom section being 9.5m of it and the tube bundle section being 17.5m. The innersurface of the vessel was surfaced with Ra < 4m overlay harshness, so that the potatomass circling the device wouldn’t get stuck. Overlay afterprocessing was complete with acidwash in our brand new aciding-tent.

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