Multiple Effect Water Stills

STERIS’ Finn-Aqua T-Series 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.

Advantages of Finn-Aqua T-Series MEWS
  • Cost Savings – Patented column design helps lower energy consumption.
  • Easy to Maintain – Latest PLC controls and commercially available components enable lower maintenance costs.
  • Highest WFI Quality – Patented three stage pyrogen separation and continuous blowdown removal from each distillation column.
  • Productivity – Proportional capacity control minimizes starts/stops.
  • Easy to Validate – Units are fully tested and pre-validated to customer specifications during factory qualification.