What is the difference between the active light-ends removal systems NALD250 and NALD250i?

Technically seen, the design of the two products is quite similar. These two solutions distinguish by the partial return flow of light-ends gases in the NALD250i. By additional returning of low-boiling gases in the distillation circuit of the system, the system becomes a pure turbo-remover. For this reason, compared to the normal NALD250, the light ends removal can run faster for up to 5x depending on the individual parameters, e.g. temperature, type of oil, and system size.

Due to this extremely efficient working principle the NALD 250i is further ideally suitable for the rotating operation of multiple separated thermal oil systems up to 400,000 litres of total volume.