Puretech’s Multiple Effect Distillers (MED) are designed and manufactured according to cGMP to produce compendial Water for Injection (WFI). Each unit contains a number of boiling columns (or effects) with the first column producing pure steam, which is condensed and re-distilled in the following columns decreasing the operational costs.
Heating for evaporation and cooling for condensation processes are performed by double tube sheet (DTS) exchangers. Condensation is achieved by means of thin-falling film technology. The process is repeated through each column with the higher number of columns reducing the overall utilities consumption of the system. However, the number of columns does not influence the quality of the product or the capacity of the equipment.
A special labyrinth separator installed at the top of each column which separates the steam generated from any carried over water droplets in the steam itself. The result is a pure, “dry”, pyrogen-free steam, condensed to achieve compendial Water for Injection.
The first column of the Still may be used to produce WFI & Pure Steam alternatively or simultaneously.
Double tube sheet heath exchangers
Certified AISI 316L stainless steel mirror-polished and passivated product contact surfaces
AISI 304 frame, jackets and control board
PTFE gaskets
Pneumatic valves with Teflon membranes and AISI 316 L SS polished body
ASTM C-795 – compliant insulation.
Capacities range from 50 to 15,000 l/hr with three to ten columns.