multi-effect WFI stills system the Finn Aqua Multiple Effect Water Stills uses an enhanced falling film evaporation technology that removes impurities at high velocities, delivering the highest quality water for injection. the Multiple Effect Water Still uses a staged evaporation and condensation process to produce water for injection. Plant steam is applied only to the first column evaporator (effect) with the subsequent columns using the steam produced in the previous column as the source of energy. Similarly, cooling water is applied only at the condenser to condense pure steam into water for injection. The columns subsequent to the first column use feed water as the cooling source, which is evaporated, as the pure steam from the preceding column is condensed producing water for injection. Produced distillate and remaining pure steam is condensed in the condenser and flowing further to the plant’s water for injection tank. system consists of (5) ) 316L stainless steel (1.4404/1.4571) vertical heat exchangers, pressure 8 bar @ 175 deg C (9.7ltr), (1) 200ltr 316L stainless steel (1.4404/1.4571) tube, head and shell horizontal condenser, pressure 2 bar @ 133 deg C, driven by a 3 kW 2900 rpm motor, (5) stainless steel Pall Filters, (1) 2500 liter 316L stainless steel (1.4571 ) vertical pressure tank with half pipe coil, pressure -1/6 bar @ 200 deg C, 1.8m diameter x 1.5m straight side,